SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C.  20549
                             FORM 10-K

Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange
  Act of 1934.

For the fiscal year ended December 31, 2000

Commission file number 0-12508
                           S&T BANCORP, INC.
         (Exact name of registrant as specified in its charter)

Pennsylvania                                            25-1434426
(State or other jurisdiction of
  incorporation of organization)         (I.R.S. Employer Identification No.)

43 South Ninth Street,  Indiana, PA                           15701
(Address of principal executive offices)                    (Zip Code)

Registrant's telephone number, including area code           (800) 325-2265

Securities registered pursuant to Section 12(b) of the Act:       None

Securities registered pursuant to Section 12(g) of the Act:

                 Common Stock, Par Value $2.50 per share
                            (Title of class)

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period
that the registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days.    Yes X  No

Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K (229.405 of this chapter) is not contained
herein, and will not be contained, to the best of registrant's knowledge,
in definitive proxy or information statements incorporated by reference
in Part III of this form 10-K or any amendment to this form 10-K.  {   }

The aggregate market value of the voting stock held by nonaffiliates of
the registrant as of February 28, 2001:

Common Stock, $2.50 par value -   $558,130,740

The number of shares outstanding of the issuer's classes of common stock
as of February 28, 2001:

Common Stock, $2.50 par value -   26,976,912 shares

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the annual shareholders report for the year ended December 31,
2000 are incorporated by reference into Part II.

Portions of the proxy statement for the annual shareholders meeting to be
held April 16, 2001 are incorporated by reference into Part III.

PAGE 1

PART I

Item 1. BUSINESS

General

  S&T Bancorp, Inc. ("S&T") was incorporated on March 17, 1983 under
the laws of the Commonwealth of Pennsylvania as a bank holding company
and has two wholly owned subsidiaries, S&T Bank and S&T Investment
Company, Inc.  S&T is registered as a bank holding company with the
Board of Governors of the Federal Reserve System under the Bank
Holding Company Act, as amended.

  As of December 31, 2000, S&T had $2.3 billion in total assets, $277
million in total shareholders' equity and $1.5 billion in total
deposits.  Deposits are insured by the Federal Deposit Insurance
Corporation ("FDIC") to the full extent provided by law.

  Total trust assets were approximately $649 million at December 31,
2000.  Trust services include services as executor and trustee under
wills and deeds, and as guardian and custodian of employee benefit
trusts.

  S&T Bank is a full service bank with its Main Office at 800
Philadelphia Street, Indiana, Pennsylvania, providing service to
its customers through a branch network of 39 offices located in
Armstrong, Allegheny, Indiana, Jefferson, Clarion, Clearfield
and Westmoreland counties.

  S&T Bank services include accepting time and demand deposit accounts,
making secured and unsecured commercial and consumer loans, providing
letters of credit, and offering discount brokerage services, personal
financial planning and credit card services.  S&T Bank has a relatively
stable deposit base and no material amount of deposits is obtained from
a single depositor or group of depositors (including federal, state and
local governments).  S&T Bank does not experience significant fluctu-
ations in deposits.

Employees

  As of December 31, 2000, S&T Bank had a total of 662 full-time
equivalent employees.  S&T provides a variety of employment benefits
and considers its relationship with its employees to be good.

Supervision and Regulation

General

  S&T and S&T Bank are each extensively regulated under both federal
and state law.  The following information describes certain aspects
of that regulation applicable to S&T and S&T Bank and does not purport
to be complete.  To the extent statutory or regulatory provisions or
proposals are described, the description is qualified in its entirety
by reference to the particular statutory or regulatory provisions or
proposals.

PAGE 2

Item 1. BUSINESS -- Continued

S&T

   As a bank holding company, S&T is subject to regulation under the
Bank Holding Company Act of 1956 ("BHCA") and the examination and
reporting requirements of the Federal Reserve Board.  Under the BHCA
a bank holding company may not directly or indirectly acquire ownership
or control of more than five percent of the voting shares or substantially
all of the assets of any additional bank, or merge or consolidate with
another bank holding company, without the prior approval of the Federal
Reserve Board.

  The BHCA also generally limits the activities of a bank holding company
to that of banking, managing or controlling banks, or any other activity
which is determined to be so closely related to banking or to managing or
controlling banks as to be a proper incident thereto.  S&T is presently
engaged in three nonbanking activities: S&T Investment Company, Inc., which
is an investment holding company, and Commonwealth Trust Credit Life
Insurance Company ("CTCLIC") and S&T Insurance Group, LLC.  S&T Investment
Company, Inc. was formed in June 1988 to hold and manage a group of investments
previously owned by S&T Bank and to give S&T additional latitude to purchase
other investments.  CTCLIC, which is a joint venture with another financial
institution, acts as a reinsurer of credit life, accident and health insurance
policies sold by S&T Bank and the other institution.  S&T Insurance Group,
LLC distributes high-quality life insurance and long-term disability income
insurance products.

  There are a number of obligations and restrictions imposed on bank
holding companies and their depository institution subsidiaries by
federal law and regulatory policy that are designed to reduce potential
loss exposure to the depositors of such depository institutions and to
the FDIC insurance funds in the event the depository institution becomes
in danger of default or in default.  For example, under a policy of the
Federal Reserve Board with respect to bank holding company operations, a
bank holding company is required to serve as a source of financial
strength to its subsidiary depository institutions and to commit
resources to support such institutions in circumstances where it might
not do so otherwise.

S&T Bank

   As a state-chartered commercial bank, the deposits of which are
insured by the Bank Insurance Fund ("BIF") of the FDIC, S&T Bank is
subject to the supervision and regulation of the Pennsylvania Depart-
ment of Banking ("PADB") and the FDIC.  S&T Bank also is subject to
various requirements and restrictions under federal and state law,
including requirements to maintain reserves against deposits,
restrictions on the types, amount and terms and conditions of loans
that may be granted, and limits on the type of other activities in
which S&T Bank may engage and the investments it may make.  Various
consumer and compliance laws and regulations also affect S&T Bank's
operations.

PAGE 3

Item 1. BUSINESS -- Continued

   S&T Bank also is subject to federal laws that limit the amount of
transactions between itself and S&T or S&T's nonbank subsidiaries.
Under these provisions, transactions by a bank subsidiary to its parent
company or any nonbank affiliate generally are limited to 10% of the
bank subsidiary's capital and surplus, or 20% in the aggregate.
Further, loans and extensions of credit generally are required to be
secured by eligible collateral in specified amounts.  A bank, such as
S&T Bank, is prohibited from purchasing any "low quality" asset from
an affiliate.  S&T Bank is in compliance with these provisions.

   As an FDIC-insured bank, S&T Bank also is subject to FDIC insurance
assessments.  Currently, the amount of FDIC assessments paid by
individual insured depository institutions ranges from zero to $.27
per $100 of insured deposits, based on their relative risk to the
deposit insurance funds, as measured by the institutions' regulatory
capital position and other supervisory factors.  S&T Bank currently
pays the lowest premium rate based upon this risk assessment.

Capital

   The Federal Reserve Board and the FDIC have issued substantially
similar risk-based and leverage capital guidelines applicable to
banking organizations they supervise.  Under the risk-based capital
requirements, S&T and S&T Bank each generally is required to maintain
a minimum ratio of total capital to risk-weighted assets (including
certain off-balance sheet activities, such as standby letters of
credit), of eight percent.  At least half of the total capital is to
be composed of common equity, retained earnings and qualifying
perpetual preferred stock, less certain intangibles ("Tier 1 capital").
The remainder may consist of certain subordinated debt, certain hybrid
capital instruments and other qualifying preferred stock, and a
limited amount of the loan loss allowance ("Tier 2 capital") and,
together with Tier 1 capital, ("Total capital").  At December 31, 2000,
S&T's Tier 1 and Total capital ratios were 12.28 percent and 14.61
percent, respectively, and the ratios of Tier 1 capital and Total
capital to total risk-adjusted assets for S&T Bank were 9.11 percent
and 10.37 percent, respectively.

   In addition, each of the federal bank regulatory agencies has
established minimum leverage capital ratio requirements for banking
organizations.  These requirements provide for a minimum leverage
ratio of Tier 1 capital to adjusted average quarterly assets equal
to four percent for bank and bank holding companies that meet
certain specified criteria, including that they have the highest
regulatory rating and are not experiencing significant growth or
expansion.  All other banks and bank holding companies will
generally be required to maintain a leverage ratio of at least 100
to 200 basis points above the stated minimum.  S&T's leverage ratio
at December 31, 2000 was 10.41 percent, and S&T Bank's leverage
ratio was 7.64 percent.

PAGE 4

Item 1. BUSINESS -- Continued

   Both the Federal Reserve Board's and the FDIC's risk-based
capital standards explicitly identify concentrations of credit
risk and the risk arising from non-traditional activities, as
well as an institution's ability to manage these risks, as
important factors to be taken into account by the agency in
assessing an institution's overall capital adequacy.  The
capital guidelines also provide that an institution's exposure
to a decline in the economic value of its capital due to changes
in interest rates be considered by the agency as a factor in
evaluating a bank's capital adequacy.  The Federal Reserve Board
also has recently issued additional capital guidelines for
certain bank holding companies that engage in trading activities.
S&T does not believe that consideration of these additional
factors will affect the regulators' assessment of S&T's or S&T
Bank's capital position.

Payment of Dividends

   S&T is a legal entity separate and distinct from its banking
and other subsidiaries.  A major portion of the revenues of S&T
result from amounts paid as dividends to S&T by S&T Bank.  S&T
Bank, in turn, is subject to state laws and regulations that
limit the amount of dividends it can pay to S&T.  In addition,
both S&T and S&T Bank are subject to various general regulatory
policies relating to the payment of dividends, including
requirements to maintain adequate capital above regulatory
minimums.  The Federal Reserve Board has indicated that banking
organizations should generally pay dividends only if (1) the
organization's net income available to common shareholders over
the past year has been sufficient to fund fully the dividends
and (2) the prospective rate of earnings retention appears
consistent with the organization's capital needs, asset quality
and overall financial condition.  S&T does not expect that any of
these laws, regulations or policies will materially impact its
ability or the ability of S&T Bank to pay dividends.  During the
year ended December 31, 2000, S&T Bank paid $22.1 million in cash
dividends to S&T.

Other Safety and Soundness Regulations

   The federal banking agencies possess broad powers under current
federal law to take prompt corrective action to resolve problems of
insured depository institutions.  The extent of these powers depends
upon whether the institution in question is "well capitalized,"
"adequately capitalized," "undercapitalized," "significantly
undercapitalized," or "critically undercapitalized," as defined by
the law.  As of December 31, 2000, S&T Bank was classified as "well
capitalized."  The classification of depository institutions is
primarily for the purpose of applying the federal banking agencies'
prompt corrective action provisions and is not intended to be, and
should not be interpreted as, a representation overall financial
condition or prospects of any financial institution.

PAGE 5

Item 1. BUSINESS -- Continued

   The agencies' prompt corrective action powers can include, among
other things, requiring an insured depository institution to adopt
a capital restoration plan which cannot be approved unless guaranteed
by the institution's parent company; placing limits on asset growth
and restrictions on activities, including restrictions on transactions
with affiliates; restricting the interest rates the institution may
pay on deposits; prohibiting the payment of principal or interest on
subordinated debt; prohibiting the holding company from making capital
distributions without prior regulatory approval and, ultimately,
appointing a receiver for the institution.  Among other things, only
a "well capitalized" depository institution may accept brokered
deposits without prior regulatory approval.

   The PADB also has broad enforcement powers over S&T Bank, including
the power to impose fines and other civil and criminal penalties,
and to appoint a conservator or receiver.

Interstate Banking and Branching

   The BHCA currently permits bank holding companies from any state
to acquire banks and bank holding companies located in any other
state, subject to certain conditions, including certain nation-wide
and state-imposed concentration limits.  Effective June 1, 1997,
S&T Bank has the ability, subject to certain restrictions, including
state opt-out provisions, to acquire by acquisition or merger,
branches of banks located outside of Pennsylvania, its home state.
The establishment of de novo interstate branches also will be possible
in those states where expressly permitted.  Once a bank has established
branches in a state through an interstate merger transaction, the bank may
establish and acquire additional branches at any location in the
state where a bank headquartered in that state could have established
or acquired branches under applicable federal or state law.

Competition

   All phases of S&T Bank's business are highly competitive.  S&T
Bank's market area is western Pennsylvania, with a representation
in Indiana, Armstrong, Allegheny, Jefferson, Clarion, Clearfield
and Westmoreland counties.  S&T Bank competes with local national
and state banks, thrift institutions, mortgage bankers, finance
companies and insurance companies within its market area.
The proximity of Indiana to metropolitan Pittsburgh results in a
significant impact on the S&T market because of media influence
and penetration by larger financial institutions, such as Mellon Bank,
National City Bank and PNC Bank.

PAGE 6

Item 1. BUSINESS -- Continued

Distribution of Assets, Liabilities and Shareholders' Equity;
Interest Rates and Interest Differential.

  The following discussion and analysis is presented so that
shareholders may review in further detail the financial condition
and results of operations of S&T.  This discussion and analysis
should be read in conjunction with the consolidated financial
statements, selected financial data and management's discussion
and analysis incorporated by reference.  References to assets and
liabilities and changes thereto represent daily average balances
for the periods discussed, unless otherwise noted.

  Net interest income represents the difference between the
interest and fees earned on interest-earning assets and the
interest paid on interest-bearing liabilities.  Net interest
income is affected by changes in the volume of interest-earning
assets and interest-bearing liabilities and changes in interest
yields and rates.  Interest on loans to and obligations of state,
municipalities and other public entities is not subject to federal
income tax.  As such, the stated (pre-tax) yield on these assets
is lower than the yields on taxable assets of similar risk and
maturity.  In order to make the pre-tax income and resultant
yields comparable to taxable loans and investments, a taxable
equivalent adjustment was added to interest income in the tables
below.  This adjustment has been calculated using the U.S. federal
statutory income tax rate of 35% for 2000, 1999 and 1998.  The
following table demonstrates the amount that has been added to
interest income per the summary of operations.

[CAPTION]

                                              Year Ended December 31

                                           2000         1999        1998
                                           (In thousands of dollars)
                                                        
Interest income per consolidated
   statements of income                $176,184     $156,727     $151,438
Adjustment to fully taxable
  equivalent basis                        3,105        3,098        3,048
Interest income adjusted to fully
  taxable equivalent basis              179,289      159,825      154,486
Interest expense                         86,141       69,942       69,156

Net interest income adjusted to fully
  taxable equivalent basis              $93,148      $89,883      $85,330


PAGE 7

Item 1. BUSINESS -- Continued

Average Balance Sheet and Net Interest Income Analysis

[CAPTION]

                                                                             December 31
                                                      2000                       1999                         1998
                                          Average            Yield/   Average            Yield/   Average            Yield/
                                          Balance   Interest  Rate    Balance  Interest   Rate    Balance   Interest  Rate
                                                                       (in thousands of dollars)
                                                                                           
ASSETS

Interest-earning assets:
   Loans (1)(2)                          $1,548,945 $138,860  8.96%  $1,421,906 $121,424  8.54%  $1,314,984 $115,993  8.82%
   Taxable investment securities            535,135   37,895  7.08%     525,848   36,404  6.92%     502,889   35,784  7.12%
   Tax-exempt investment securities (2)      13,690    1,186  8.66%      17,045    1,449  8.50%      28,459    2,395  8.42%
   Interest-earning deposits with banks         109        9  8.26%          71        4  5.63%          83        6  7.23%
   Federal funds sold                        21,332    1,339  6.28%      10,880      544  5.00%       5,812      308  5.30%
Total interest-earning assets (3)         2,119,211  179,289  8.46%   1,975,750  159,825  8.09%   1,852,227  154,486  8.34%

Noninterest-earning assets:
   Cash and due from banks                   36,171                      40,121                      39,395
   Premises and equipment, net               20,522                      20,976                      20,905
   Market value appreciation of
    securities available for sale            26,600                      45,573                      60,811
   Other assets                              79,017                      65,559                      44,755
Less allowance for loan losses              (29,184)                    (27,743)                    (23,562)
                                         $2,252,337                  $2,120,236                  $1,994,531

LIABILITIES AND SHAREHOLDERS' EQUITY

Interest-bearing liabilities:
   NOW/Money market accounts               $419,214  $15,647  3.73%    $393,929  $11,808  3.00%    $327,851  $10,146  3.09%
   Savings deposits                         154,226    3,390  2.20%     167,414    3,546  2.12%     172,525    3,914  2.27%
   Time deposits                            679,684   37,430  5.51%     626,166   31,924  5.10%     642,681   35,510  5.53%
   Federal funds purchased                    2,142      139  6.49%       4,465      229  5.13%       7,007      383  5.47%
   Securities sold under agreements
     to repurchase                          102,379    5,863  5.73%     138,387    6,519  4.71%     170,961    8,968  5.25%
   Long-term borrowing                      377,352   23,672  6.27%     286,975   15,916  5.55%     185,959   10,226  5.50%
   Other borrowed funds                           -        -     -            -        -     -          130        9  6.92%
Total interest-bearing liabilities (3)    1,734,997   86,141  4.96%   1,617,336   69,942  4.32%   1,507,114   69,156  4.59%

Noninterest-bearing liabilities:
  Demand deposits                           223,045                      210,095                    183,435
  Other                                      40,264                       41,815                     47,423

Shareholders' equity                        254,031                      250,990                    256,559
                                         $2,252,337                   $2,120,236                 $1,994,531
Net interest income                                  $93,148                     $89,883                     $85,330
Net yield on interest-earning assets                          4.40%                       4.55%                       4.61%



(1) For the purpose of these computations, nonaccruing loans are
    included in the daily average loan amounts outstanding.
(2) Tax-exempt income is on a fully taxable equivalent basis,
    including the dividend received deduction for equity securities,
    using the statutory federal income tax rate of 35% for 2000,
    1999 and 1998.
(3) Yields are calculated using historical cost basis.

PAGE 8

Item 1. BUSINESS -- Continued

   The following tables set forth for the periods indicated a summary of
the changes in interest earned and interest paid resulting from changes
in volume and changes in rates:
[CAPTION]


                                              2000 Compared to 1999              1999 Compared to 1998
                                          Increase (Decrease) Due to (1)     Increase (Decrease) Due to (1)
                                             Volume     Rate       Net          Volume     Rate       Net
                                                                (In thousands of dollars)
                                                                                 
Interest earned on:
  Loans (2)                                 $10,849   $6,587   $17,436          $9,431  ($4,000)   $5,431
  Taxable investment securities                 643      848     1,491           1,634   (1,014)      620
  Tax-exempt investment securities (2)         (285)      22      (263)           (961)      15      (946)
  Interest-earning deposits                       2        3         5              (1)      (1)       (2)
  Federal funds sold                            523      272       795             269      (33)      236
Total interest-earning assets               $11,732   $7,732   $19,464         $10,372  ($5,033)   $5,339


Interest paid on:
  NOW/Money market accounts                    $758   $3,081    $3,839          $2,045    ($383)   $1,662
  Savings deposits                             (279)     123      (156)           (116)    (252)     (368)
  Time deposits                               2,729    2,777     5,506            (913)  (2,673)   (3,586)
  Securities sold under agreements
    to repurchase                            (1,696)   1,040      (656)         (1,709)    (740)   (2,449)
  Federal funds purchased                      (119)      29       (90)           (139)     (15)     (154)
  Long-term borrowings                        5,012    2,744     7,756           5,555      135     5,690
  Other borrowed funds                            0        0         0              (9)       0        (9)
Total interest-bearing liabilities           $6,405   $9,794   $16,199          $4,714  ($3,928)     $786

Change in net interest income                                    3,265                             $4,553



(1)  The change in interest due to both volume and rate has been
     allocated to volume and rate changes in proportion to the
     relationship of the absolute dollar amounts of the change in each.
(2)  Tax-exempt income is on a fully taxable equivalent basis using the
     statutory federal income tax rate of 35% for 2000, 1999 and 1998.

PAGE 9

Item 1. BUSINESS -- Continued

INFLATION AND CHANGING INTEREST RATES

   The majority of assets and liabilities of a financial institution
are monetary in nature and therefore differ greatly from most
commercial and industrial companies that have significant investments
in fixed assets or inventory.  Fluctuations in interest rates and the
efforts of the Federal Reserve Board to regulate money and credit have
a greater effect on a financial institution's profitability than do the
effects of higher costs for goods and services.  Through its asset/
liability management committee ("ALCO"), S&T is positioned to cope with
changing interest rates and inflationary trends. ALCO monitors and
manages interest rate sensitivity through gap, simulation and duration
analysis.

   The schedule below presents S&T's interest rate sensitivity at
December 31, 2000 using gap analysis. The gap and cumulative gap
represents the net position of assets and liabilities subject to
repricing in specified time periods, as measured by a ratio of rate
sensitive assets to rate sensitive liabilities.  ALCO policy
guidelines for cumulative gap in the six and twelve month time
frames, annually approved by the S&T Board of Directors, is currently
a .85 to 1.15 range.  Management believes this range provides an
acceptable and manageable level of interest rate risk for S&T.
Significant to gap analysis is the expected rate of asset prepayment,
calls on securities and the behavior of depositors during periods of
changing interest rates.  For example, in periods of declining interest
rates, borrowers can be expected to accelerate loan prepayments and
refinancings; depositors will tend to hold those certificates of
deposits with rates currently higher than the market.  Conversely,
in a rising interest rate scenario, borrower refinancings and
prepayments typically decrease, while deposit shifting and early
withdrawals tend to accelerate as depositors position funds to earn
higher yields.

  ALCO continually monitors these historical behavior patterns through
periods of changing interest rates, and uses this information to
develop loan prepayments and decay rates for Core Deposits (demand,
NOW, savings).  The gap analysis below incorporates a flat rate scenario,
and the following significant assumptions:

Monthly loan prepayments above contractual requirements
[CAPTION]


                                              
  5 year ARM - Commercial Real Estate            1.50 %
  Fixed Rate - Commercial Real Estate            1.25
  Residential Real Estate                        1.00
  New Indirect Auto Loans                        2.00
  Other Installment Loans                        2.65


Deposit behavioral patterns/decay rate assumptions
[CAPTION]

                                                  
  NOW and Savings - Year #1                          25.00 %
  NOW and Savings - Year #2                          25.00
  NOW and Savings - beyond Year #2                   50.00
  Money market pricing is indexed and tiered to
     market interest rates.                             NA
  S&T has not historically experienced
     fluctuations in demand deposit balances
     during periods of interest rate fluctuations.      NA



PAGE 10

Item 1. BUSINESS -- Continued
[CAPTION]

                                          Interest Rate Sensitivity
                                               December 31, 2000
                                            (thousands of dollars)
                                                       
       GAP                    1-6 Months 7-12 Months 13-24 Months  >2 Years

Repricing Assets:
 Cash/Due From Banks                   $0         $0         $0     $43,721
 Federal Funds                      6,600          0          0           0
 Securities                        58,432     14,084     12,455     495,943
 Net Loans                        649,974    164,317    214,282     549,059
 Other Assets                           0          0          0     101,423
  Total                          $715,006   $178,401   $226,737  $1,190,146

Repricing Liabilities:
 Demand                                $0         $0         $0    $232,625
 NOW                               15,421     15,422     30,842      61,686
 Money Market                     308,401          0          0           0
 Savings/Clubs                     18,074     18,074     36,148      72,295
 Certificates                     236,826    119,163    243,547     116,810
 Repos & Short-term Borrowings     80,686          0          0           0
 Long-term Borrowings              25,000     54,281    104,563     194,154
 Swaps                                  0          0          0           0
 Other Liabilities/Equity               0          0          0     326,272
  Total                          $684,408   $206,940   $415,100  $1,003,842

GAP                               $30,598   ($28,539) ($188,363)   $186,304

Cumulative GAP                    $30,598     $2,059  ($186,304)         $0

                                                                          Immediate
                                                  Current    Policy      Core Deposit
Rate Sensitive Assets/Rate Sensitive Liabilities    Month   Guideline     Repricing
  Cumulative 6 months                                1.04   .85-1.15         0.78
  Cumulative 12 months                               1.00   .85-1.15         0.82



  S&T's one year gap position at December 31, 2000 is asset
sensitive.  Asset sensitive means that more assets than
liabilities of S&T will reprice during the measured time frames.
The implications of an asset sensitive position will differ
depending upon the current trend of market interest rates.

  For example, with an asset sensitive position in a declining
interest rate environment, the cost of S&T repricing liabilities
can theoretically be expected to decline less quickly than the
yields on S&T repricing assets. This situation would cause a
decrease to S&T's interest rate spreads, net interest income and
to operating income.  Liquidity impacts in this scenario, other
than decreased yields, would not be material unless serious
ongoing declines in operating results caused depositors, lenders
and investors to lose confidence.

PAGE 11

Item 1. BUSINESS -- Continued

  Conversely, a liability sensitive gap position in a declining
interest rate scenario would theoretically have a positive impact
to interest rate spreads, net income and to operating income.
Liquidity impacts would not be material in the short-term; in the
long-term, improved operating income is always beneficial to
liquidity issues.

  Gap analysis usefulness as a measurement of interest rate risk
is limited because the time period measured is static.  Simulation
provides a more dynamic modeling tool for interest rate risk since
this technique can incorporate future assumptions about interest
rates, volume flucuations and customer behaviors.  ALCO uses
simulation to measure changes in net interest income during a
2%, plus or minus, change in current market interest rates (Rate
Shock Analysis).  Current ALCO policy guidelines require that
declines in forecasted net interest income do not exceed 3% as a
result of Rate Shock Analysis.

  Duration techniques are a relatively new addition to S&T's
interest rate risk monitoring tools. Duration modeling is primarily
used to assist in match fundings for large commercial loans, security
purchases and segments of the installment loan portfolios.

Securities

  S&T invests in various securities in order to provide a source of
liquidity, increase net interest income and as an ALCO tool to
quickly reposition the balance sheet for interest rate risk purposes.
Securities are subject to similar interest rate and credit risks as
loans.  In addition, by their nature, securities classified as
available for sale are also subject to market value risks that could
negatively affect the level of liquidity available to S&T, as well as
equity.

  Risks associated with various securities portfolios are managed and
monitored by investment policies annually approved by the S&T Board of
Directors, and administered through ALCO and the Chief Investment
Officer.  As of December 31, 2000, management is not aware of any risk
associated with securities that would be expected to have a significant,
negative effect to S&T's statement of condition or statement of
operations.

  The following table sets forth the carrying amount of securities at
the dates indicated:
[CAPTION]


                                                December 31
                                        2000        1999       1998
                                       (In thousands of dollars)
                                                  
Available for Sale
Marketable equity securities        $114,317     $97,729   $115,532
Obligations of U.S. government
  corporations and agencies          334,797     335,941    357,417
Mortgage-backed securities             5,563       6,170      8,715
U.S. Treasury securities              11,201      14,126     27,952
Corporate securities                  64,237      64,526     36,353
Other securities                      37,285      39,502     22,509
TOTAL                               $567,400    $557,994   $568,478

Held to Maturity
Obligations of states and
  political subdivisions             $11,512     $15,231    $21,009
Corporate securities                   2,000       1,999      1,999
TOTAL                                $13,512     $17,230    $23,008



PAGE 12

Item 1. BUSINESS -- Continued


  The following table sets forth the maturities of securities
at December 31, 2000, and the weighted average yields of such
securities (calculated on the basis of the cost and effective
yields weighted for the scheduled maturity of each security).
Tax-equivalent adjustments (using a 35% federal income tax
rate) for 2000 have been made in calculating yields on oblig-
ations of state and political subdivisions.
[CAPTION]


                                                                        Maturing
                                         Within       After One But    After Five But     After       No Fixed
                                        One Year    Within Five Years Within Ten Years  Ten Years     Maturity
                                      Amount  Yield    Amount  Yield   Amount  Yield  Amount  Yield    Amount
                                                               (in thousands of dollars)
                                                                          
Available for Sale
Marketable equity securities                                                                         $114,318
Obligations of U.S. government
  corporations and agencies                          $180,448  6.69% $154,348  7.07%
Mortgage-backed securities                              5,564  7.63%
U.S. Treasury securities              $5,064  7.22%     6,136  7.81%
Corporate securities                   7,502  6.39%    56,736  6.58%
Other securities                                                                                       37,285
TOTAL                                $12,566         $248,884        $154,348             $0         $151,603
Weighted Average Rate                         6.72%            6.71%           7.07%          0.00%

Held to Maturity
Obligations of states and
  political subdivisions              $2,090  5.21%    $9,422  5.72%
Corporate securities                   2,000  9.88%
TOTAL                                 $4,090           $9,422              $0              $0              $0
Weighted Average Rate                         7.49%            5.72%           0.00%           0.00%



Loan Portfolio

   The following table shows S&T's loan distribution at the end of
each of the last five years:
[CAPTION]


                                                       December 31
                                   2000        1999        1998        1997        1996
                                                (In thousands of dollars)
                                                                
Domestic Loans:
  Commercial, mortgage
    and industrial             $936,313    $830,847    $672,742    $582,401    $496,863
  Real estate-construction      113,856      94,786      87,246      47,967      35,508
  Real estate-mortgage          465,779     466,881     492,570     512,417     513,424
  Installment                    89,076     103,763     113,351     130,968     154,341
       TOTAL LOANS           $1,605,024  $1,496,277  $1,365,909  $1,273,753  $1,200,136



PAGE 13

Item 1. BUSINESS -- Continued

  The following table shows the maturity of loans (excluding residential
mortgages of 1-4 family residences and installment loans) outstanding
as of December 31, 2000.  Also provided are the amounts due after one
year classified according to the sensitivity to changes in interest rates.
[CAPTION]

                                                                                                                            Maturing
                               Within     After One But      After
                              One Year  Within Five Years  Five Years     Total
                                             (In thousands of dollars)
                                                          
Commercial, mortgage
  and industrial              $346,452       $294,612      $295,248     $936,312
Real estate-construction        26,028         43,833        43,996      113,857
                              $372,480       $338,445      $339,244   $1,050,169


Fixed interest rates                         $113,499       $77,033
Variable interest rates                       224,946       262,211
                                             $338,445      $339,244




Nonaccrual, Past Due and Restructured Loans

The following table summarizes S&T's nonaccrual, past due and
restructured loans:
[CAPTION]


                                           December 31
                             2000     1999     1998     1997      1996
                                     (in thousands of dollars)
                                                
Nonaccrual loans           $2,897   $2,987   $2,933   $3,602   $10,268

Accruing loans past
  due 90 days or more          $0       $0       $0       $0        $0



PAGE 14

Item 1. BUSINESS -- Continued

  At December 31, 2000, $2,897,000 of nonaccrual loans were secured.
Interest income that would have been recorded under original terms
totaled $324,000.  No interest income was recorded on these loans.
It is S&T's policy to place loans on non-accrual status when collection
of interest or principal is doubtful, or generally when interest or
principal are 90 days or more past due.  The accrual of interest on
impaired loans is discontinued when, in management's opinion, the
borrower may be unable to meet payments as they become due.  At
December 31, 2000, there were $915,000 impaired loans that were on
nonaccrual. There are no foreign loan amounts required to be included
in this table.  There were no restructured loans in the periods presented.

Summary of Loan Loss Experience

  Management evaluates the degree of loss exposure for loans on a
continuous basis through a formal loan policy as administered by
the Loan Administration Department and various management and director
committees.  Problem loans are identified and continually monitored
through detailed reviews of specific large dollar loans, and the
analysis of delinquency and charge-off levels of consumer loan portfolios.
Charged-off and recovered loan amounts are applied to the allowance for
loan losses.  Quarterly updates are presented to the S&T Board of
Directors as to the status of loan quality.

  Amounts are added to the allowance for loan losses through a charge to
current earnings through the provision for loan losses, based upon
management's assessment about the adequacy of the allowance for loan
losses for probable loan losses.  A quantitative analysis is utilized to
support the adequacy of the allowance for loan losses.  This analysis
includes review of the high and low historical charge-off rates for loan
categories, fluctuations and trends in the amount of classified loans
and economic factors.  Economic factors consider the level of S&T's
historical charge-offs that have occurrence within the credits economic
life cycle.  Management also assesses other subjective factors such as
economic conditions and business trends, concentrations, growth and
composition of the loan portfolio and effectiveness of the Loan
Administration Department.

  Significant to this analysis and assessment is the shift in loan
portfolio composition to an increased mix of commercial loans.
These loans are generally larger in size and due to our continuing
growth, many are not well seasoned and could be more vulnerable to
an economic slowdown.  Management relies on its risk rating process
to monitor trends which may be occurring relative to commercial
loans to assess potential weaknesses within specific credits.
Current economic factors and trends in risk ratings are considered
in the determination of the allowance for loan losses.

  This analysis and assessment results in an allowance for loan
losses consisting of two components, allocated and unallocated.
The allocated component of the allowance for loan losses reflects
expected losses resulting from the analysis of individual loans
developed through specific ratings and allocations, and historical
loss experience for categories of loans.  The specific allocations
are based upon regular analysis of loans and commitments over a
fixed dollar amount and the internal credit rating for the loan
or commitment.  Categories of smaller individual loans are allocated
based upon historical losses and current delinquency levels.

PAGE 15

Item 1. BUSINESS -- Continued

  The unallocated component is primarily subjective based upon
management's assessment of nonquantifiable factors that make
historical trend analyses difficult such as:

    Economic factors
    Loan concentration in western Pennsylvania.
    Significant commercial loan volume increases in the last
      three years in new markets with new customers.
    The introduction of several new consumer products.
    Increased commercial real estate lending.

   The allowance for loan losses considered management's
assessment of the factors noted above along with the growth
in the loan portfolio.  The additions to the allowance
charged to operating expense has maintained the allowance
as a percent of loans at the following levels at the end of
each year presented below.
[CAPTION]


                     Year Ended December 31
                             
              2000    1999    1998    1997    1996
             1.71%   1.81%   1.95%   1.60%   1.56%



   S&T has considered impaired loans in its determination of
the allowance for loan losses. The allowance for loan losses for
all impaired loans was zero at December 31, 2000 and $73,000 at
December 31, 1999, and is included in the allowance allocated
specifically to commercial loans.

   Asset quality is a major corporate objective at S&T.  Based
on the evaluation of loan quality and assessment of risk
characteristics, management believes that the allowance for loan
losses is adequate to absorb probable loan losses.

This table summarizes S&T's loan loss experience for each of the
five years ended December 31:
[CAPTION]


                                          Year Ended December 31
                                    2000    1999    1998    1997    1996
                                         (In thousands of dollars)
                                                  
Balance at January 1:            $27,134 $26,677 $20,427 $18,729 $17,065
Charge-offs:
 Commercial, mortgage and
    industrial                     6,327   4,270   2,905   1,654   2,986
 Real estate-mortgage                864     913   1,497   1,056     405
 Installment                       1,809   1,819   1,597   1,771   2,145
                                   9,000   7,002   5,999   4,481   5,536
Recoveries:
 Commercial, mortgage and
    industrial                     4,450   2,483     713     517   1,591
 Real estate-mortgage                394     495     389     221     105
 Installment                         417     481     597     441     329
                                   5,261   3,459   1,699   1,179   2,025
Net charge-offs                    3,739   3,543   4,300   3,302   3,511
Provision for loan losses          4,000   4,000  10,550   5,000   5,175
Balance at December 31:          $27,395 $27,134 $26,677 $20,427 $18,729

Ratio of net charge-offs
 to average loans outstanding       0.24%   0.25%   0.33%   0.27%   0.31%



PAGE 16

Item 1. BUSINESS -- Continued

  This table shows allocation of the allowance for loan losses as of
the end of each of the last five years:
[CAPTION]


                           December 31, 2000 December 31, 1999 December 31, 1998 December 31, 1997 December 31, 1996
                                     Percent           Percent           Percent           Percent           Percent
                                    of Loans          of Loans          of Loans          of Loans          of Loans
                                     in Each           in Each           in Each           in Each           in Each
                                    Category          Category          Category          Category          Category
                                    to Total          to Total          to Total          to Total          to Total
                             Amount    Loans   Amount    Loans   Amount    Loans   Amount    Loans   Amount    Loans
                                                              (In thousands of dollars)
                                                                                   
Commercial, mortgage
  and industrial            $18,835      58%  $20,147      56%  $16,850      49%  $13,556      46%   $9,605      41%
Real estate-construction          0       7%        0       6%        0       7%        0       4%        0       3%
Real estate-mortgage            845      29%      868      31%    1,096      36%      763      40%    1,680      43%
Installment                   2,766       6%    2,541       7%    2,635       8%    1,865      10%    1,859      13%
Unallocated                   4,949       0%    3,578       0%    6,096       0%    4,243       0%    5,585       0%
  TOTAL                     $27,395     100%  $27,134     100%  $26,677     100%  $20,427     100%  $18,729     100%



Deposits

  The daily average amount of deposits and rates paid on such deposits
is summarized for the periods indicated in the following table:
[CAPTION]


                                              Year Ended December 31
                                      2000              1999              1998

                                 Amount   Rate     Amount   Rate     Amount   Rate
                                               (In thousands of dollars)
                                                           
Noninterest-bearing demand
  deposits                     $223,045          $210,095          $183,435
NOW/ Money market accounts      419,214  3.73%    393,929  3.00%    327,851  3.09%
Savings deposits                154,226  2.20%    167,414  2.12%    172,525  2.27%
Time deposits                   679,684  5.51%    626,166  5.10%    642,681  5.53%
TOTAL                        $1,476,169        $1,397,604        $1,326,492



  Maturities of time certificates of deposit of $100,000 or more
outstanding at December 31, 2000, are summarized as follows:
[CAPTION]

                    (In thousands of dollars)
                                      
   3 Months or less                       $45,668
   Over 3 through 6 months                 15,535
   Over 6 through 12 months                11,446
   Over 12 months                          50,650
      TOTAL                              $123,299





Return on Equity and Assets

  The table below shows consolidated operating and capital ratios
of S&T for each of the last three years:

                                         Year Ended December 31
                                   2000            1999            1998
                                                        
Return on average assets           2.00%           1.95%           1.90%
Return on average equity          17.70%          16.50%          14.80%
Dividend payout ratio             49.22%          48.65%          46.14%
Equity to asset ratio             11.99%          10.92%          12.55%

PAGE 17

Item 1. BUSINESS -- Continued

Short-Term Borrowings

  The following table shows the distribution of S&T's short-term
borrowings and the weighted average interest rates thereon at the
end of each of the last three years.  Also provided are the maximum
amount of borrowings and the average amounts of borrowings as well
as weighted average interest rates for the last three years.

                                                    Federal Funds
                                                    Purchased and
                                                       Securities
                                                       Sold Under
                                                       Agreements
                                                    to Repurchase
                                         (In thousands of dollars)
                                                    
Balance at December 31:
  2000                                                    $80,686
  1999                                                    116,009
  1998                                                    138,825

Weighted average interest rate at year end:
  2000                                                       5.89%
  1999                                                       5.06%
  1998                                                       4.63%

Maximum amount outstanding at any month's end:
  2000                                                   $168,244
  1999                                                    212,361
  1998                                                    251,030

Average amount outstanding during the year:
  2000                                                   $104,521
  1999                                                    142,852
  1998                                                    177,968

Weighted average interest rate during the year:
  2000                                                       5.75%
  1999                                                       4.72%
  1998                                                       5.29%

  S&T defines repurchase agreements with its retail customers as
retail REPOs; wholesale REPOs are those transacted with other banks
and brokerage firms with terms normally ranging from 1 to 14 days.

PAGE 18

Item 2.   PROPERTIES

          S&T operates 39 banking offices in Indiana, Armstrong,
          Allegheny, Jefferson, Clearfield, Clarion, Westmoreland
          and surrounding counties in Pennsylvania.  S&T owns land
          and banking offices at the following locations:  800
          Philadelphia Street, 2175 Route 286 South in Indiana;
          Route 119 South & Lucerne Road and 34 North Main Street
          in Homer City; 232 North Hampton Avenue in Punxsutawney;
          133 Philadelphia Street in Armagh; Route 119 in Black Lick;
          256 Main Street and Route 36 & I-80 in Brookville; 456
          Main Street in Brockway; 602 Salt Street in Saltsburg; 35
          West Scribner Avenue, Treasure Lake and 614 Liberty Boulevard
          in DuBois; 418 Main Street in Reynoldsville; 205 East Market
          Street in Blairsville; 85 Greensburg Street in Delmont; 100
          South Chestnut Street in Derry; 109 Grant Avenue in
          Vandergrift; 100 South Fourth Street in Youngwood; 701 East
          Pittsburgh Street in Greensburg; 2190 Hulton Road in East
          Oakmont; 4385 Old William Penn Highway in Monroeville; 7660
          Saltsburg Road in Plum; 12262 Frankstown Road in Penn Hills;
          410 Main Street in Clarion; and 301 Unity Center Road in Unity.
          Land is leased where S&T owns the banking offices at 1107
          Wayne Avenue and remote ATM buildings at 435 South Seventh
          Street and 1176 Grant Street, all in Indiana; 8th and Merle
          Street and Gemmel Student Center in Clarion; 730 East
          Pittsburgh Street in Greensburg; and 523 Franklin Avenue in
          Vandergrift.  In addition, S&T leases land and banking offices
          at the following locations: Chestnut Ridge Plaza in Blairsville;
          324 North Fourth Street and 2850 Route 286 South and Hospital
          Road in Indiana; the Mall Office in DuBois; 229 Westmoreland
          Mall; 2388 Route 286 in Holiday Park; 802 South Aiken Avenue,
          Shadyside Village in Pittsburgh; Route 268 Hilltop Plaza in
          Kittanning and a remote ATM location at the Main Street Mall in
          DuBois.

Item 3.   LEGAL PROCEEDINGS

          The nature of S&T's business generates a certain
          amount of litigation involving matters arising in the
          ordinary course of business.  However, in the opinion
          of management, there are no proceedings pending to
          which S&T is a party or to which its property is subject,
          which, if determined adverse, would be material in
          relation to its shareholders' equity or financial condition.
          In addition, no material proceedings are pending nor are
          known to be threatened or contemplated against S&T by
          governmental authorities or other parties.

Item 4.   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

          There were no matters during the fourth quarter of the
          fiscal year covered by this report that were submitted
          to a vote of the security holders through solicitation
          of proxies or otherwise.

PART II
Item 5.   MARKET FOR REGISTRANT'S COMMON STOCK AND RELATED
          SHAREHOLDER MATTERS

          Stock Prices and Dividend Information on page 55
          and Dividend and Loan Restrictions on page 45 of
          the Annual Report for the year ended December 31,
          2000, incorporated herein by reference.

Item 6.   SELECTED FINANCIAL DATA

          Selected Financial Data on pages 55 and 56 of the
          Annual Report for the year ended December 31, 2000,
          incorporated herein by reference.

PAGE 19


Item 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
          CONDITION AND RESULTS OF OPERATIONS

          Management's Discussion and Analysis of Financial
          Condition and Results of Operations on page 22 through
          31 of the Annual Report for the year ended December 31,
          2000, incorporated herein by reference.

Item 7(A).QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT
          MARKET RISK

          Quantitative and Qualitative Disclosures about Market
          Risk on pages 29 and 30 of the Annual Report for the
          year ended December 31, 2000, incorporated herein by
          reference.

Item 8.   FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

          The Consolidated Financial Statements, Report of
          Independent Auditors and Quarterly Selected Financial
          Data on pages 32 through 55 and page 56 of the Annual
          Report for the year ended December 31, 2000,
          incorporated herein by reference.

Item 9.   CHANGES AND DISAGREEMENTS WITH ACCOUNTANTS ON
          ACCOUNTING AND FINANCIAL DISCLOSURES

          There have been no changes in accountants or disagree-
          ments with accountants on accounting and financial
          disclosures.

PART III

Item 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

         Election of Directors on pages 4 through 5 of the proxy
         statement for the April 16, 2001,  annual meeting of
         shareholders, incorporated herein by reference.

                               Executive Officers
                                                           Number of
                                                              Shares
                     For the                Officer     Beneficially
Name                 Corporation              Since            Owned (1) Age

Robert D. Duggan     Chairman                  1983          185,442      68
                     and Director

James C. Miller      President, Chief          1983          199,491      55
                     Executive Officer and
                     Director

James G. Barone(2)   Executive Vice            1992           61,693      53
                     President, Secretary and
                     Treasurer

Robert E. Rout       Executive Vice            1993           71,869      48
                     President and Chief
                     Financial Officer

PAGE 20

Item 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT --
                                             Continued
                                   Executive Officers (continued)

                                                           Number of
                                                              Shares
                     For the                 Officer    Beneficially
Name                 Corporation               Since        Owned (1)    Age

Edward C. Hauck      Executive Vice            1991           61,592      48
                     President

David L. Krieger     Executive Vice            1984           53,496      57
                     President

J. Jeffrey Smead     Executive Vice            1992           88,012      49
                     President

William H. Klumpp    Senior Vice               1994           42,744      57
                     President

Edward A. Onderick   Senior Vice               1989           73,416      56
                     President

David P. Ruddock     Senior Vice               1998           29,110      39
                     President

Todd D. Brice        Senior Vice               1999           62,531      39
                     President

Richard A. Fiscus    Senior Vice               1999           35,122      45
                     President


    (1)   May include shares held by spouse, other family members, as
          trustee or through a corporation and nonstatutory stock
          options vesting within 60 days of the date of this 10-K Report.
          The reporting person may disclaim beneficial ownership of
          such shares.

    (2)   Mr. Barone resigned as Secretary and Treasurer effective at the
          board meeting held on February 19, 2001, and currently continues
          as President of S&T Investment Company, a subsidiary of S&T.
          Robert E. Rout, Executive Vice President and Chief Financial
          Officer, succeeded Mr. Barone as Secretary.  Mark Kochvar, Senior
          Vice President, was promoted to Treasurer.

Item 11.  EXECUTIVE COMPENSATION

          Remuneration of Executive Officers on pages 7 and 8 of the
          proxy statement for the April 16, 2001, annual meeting of
          shareholders, incorporated herein by reference.

PAGE 21

PART IV

Item 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND
          MANAGEMENT

          Principal Beneficial Owners of Common Stock on page 3 of
          the proxy statement for the April 16, 2001, annual meeting
          of shareholders, incorporated herein by reference.

Item 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

          Transactions with Management and Others on pages 10 and 11
          of the proxy statement for April 16, 2001, annual meeting
          with shareholders, incorporated herein by reference.

Item 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS
          ON FORM 8-K

     (a)  List of financial statements and financial statement schedules

  (1)     The following Consolidated Financial Statements and Report of
          Independent Auditors of S&T Bancorp, Inc. and subsidiaries
          included in the annual report of the registrant to its
          shareholders for the year ended December 31, 2000, are
          incorporated by reference in Part II, Item 8:
                                                          Page
                                                        Reference

Report of Ernst & Young LLP, Independent Auditors          54

Consolidated Balance Sheets
December 31, 2000 and 1999                                 32

Consolidated Statements of Income
Year ended December 31, 2000, 1999, and 1998               33

Consolidated Statements of Changes
in Shareholders' Equity
Year ended December 31, 2000, 1999, and 1998               34

Consolidated Statements of Cash Flows
Year ended December 31, 2000, 1999, and 1998               35

Notes to Consolidated Financial
Statements December 31, 2000                              36-53

Quarterly Selected Financial                               56


  (2)     Schedules to the consolidated financial statements
          required by Article 9 of Regulation S-X are not required
          under the related instructions or are inapplicable, and
          therefore have been omitted.

  (3)     Listing of Exhibits - See Item 14 (c) below

     (b)  Reports on Form 8-K

          None

PAGE 22

Item 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON
          FORM 8-K (Continued)


     (c)  Exhibits

          (3.1)  Articles of Incorporation of S&T Bancorp, Inc.
                 filed as Exhibit B to Registration Statement
                 (No. 2-83565) on Form S-4 of S&T Bancorp, Inc.,
                 dated May 5, 1983, incorporated herein by reference.

          (3.2)  Amendment to Articles of Incorporation of S&T
                 Bancorp, Inc. filed as Exhibit 3.2 to Form S-4
                 Registration Statement (No. 33-02600) dated January
                 15, 1986, incorporated herein by reference.

          (3.3)  Amendment to Articles of Incorporation of S&T Bancorp,
                 Inc. effective May 8, 1989 - incorporated herein by
                 reference.

          (3.4)  Amendment to Articles of Incorporation of S&T Bancorp,
                 Inc. effective July 21, 1995 - incorporated herein by
                 reference.

          (3.5)  Amendment to Articles of Incorporation of S&T Bancorp,
                 Inc. effective June 18, 1998 - incorporated herein by
                 reference.

          (3.6)  By-Laws of S&T Bancorp, Inc., as amended, December 20,
                 1999 -  incorporated herein by reference.

  (13)    Annual Report for the year ended December 31, 2000, pages
          22-56, - filed herewith.

  (21)    Subsidiaries of the Registrant - filed herewith.

  (23.1)  Consent of Ernst & Young LLP,  Independent Auditors - filed
          herewith.

PAGE 23

SIGNATURES

  Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.







                        S&T BANCORP, INC.
                       (Registrant)



                        /s/ James C. Miller                  03/19/01
                        James C. Miller,                         Date
                        President and Chief Executive Officer
                       (Principal Executive Officer)



                        /s/ Robert E. Rout                    03/19/01
                        Robert E. Rout,                           Date
                        Executive Vice President and Chief Financial
                        Officer and Secretary
                       (Principal Financial and Accounting Officer)

PAGE 24

SIGNATURES

  Pursuant to the requirements of the Securities Exchange Act of 1934,
  this report has been signed below by the following persons on behalf
  of the registrant and in the capacities and on the dates indicated.

                                         /s/ Frank W. Jones          03/19/01
Thomas A. Brice, Director     Date       Frank W. Jones, Director        Date


/s/ James L. Carino       03/19/01       /s/ Joseph A. Kirk          03/19/01
James L. Carino, Director     Date       Joseph A. Kirk, Director        Date


/s/ John J. Delaney       03/19/01
John J. Delaney, Director     Date       Samuel Levy, Director           Date


/s/ Michael J. Donnelly   03/19/01       /s/ James C. Miller         03/19/01
Michael J. Donnelly, Director Date       James C. Miller, President,     Date
                                         Chief Executive Officer and Director

/s/ Robert D. Duggan      03/19/01       /s/ Alan Papernick          03/19/01
Robert D. Duggan, Chairman    Date       Alan Papernick, Director        Date


/s/ William J. Gatti      03/19/01       /s/ Myles D. Sampson        03/19/01
William J. Gatti, Director    Date       Myles D. Sampson, Director      Date


/s/ Ruth M. Grant         03/19/01       /s/ Charles A. Spadafora    03/19/01
Ruth M. Grant, Director       Date       Charles A. Spadafora, Director  Date


/s/ Jeffrey D. Grube      03/19/01       /s/ Christine J. Toretti    03/19/01
Jeffrey D. Grube, Director    Date       Christine J. Toretti, Director  Date



Herbert L. Hanna, Director    Date

PAGE 25