Exhibit 99.1

                                                                        For more
                                                           information, contact:
                                                              Robert D. Sznewajs
                                                                 President & CEO
                                                                  (503) 598-3243

                                                                 Anders Giltvedt
                                                   Executive Vice President &CFO
                                                                  (503) 598-3250

         WEST COAST BANCORP REPORTS RECORD SECOND QUARTER 2005 EARNINGS

O  RETURN ON AVERAGE EQUITY REACHES 16.6% IN SECOND QUARTER 2005

O  18 % GROWTH IN EARNINGS PER DILUTED SHARE FROM SECOND QUARTER 2004

O  COMMERCIAL AND CONSTRUCTION  LOAN GROWTH OF 33% AND 21%,  RESPECTIVELY,  FROM
   JUNE 30, 2004

Lake  Oswego,  OR - July 19,  2005 - West Coast  Bancorp  (NASDAQ:  WCBO)  today
announced  quarterly earnings of $6.1 million or $0.40 per diluted share for the
second  quarter  of 2005,  compared  to  earnings  of $5.3  million or $0.34 per
diluted share in the second quarter of 2004. This represents a 17.6% increase in
earnings per diluted share from the same quarter in 2004.

           ---------------------------------------------------------
                                               Three Months Ended
                                                   June 30,
           ---------------------------------------------------------
           (# in 000's except per share data)
                                                2005        2004
           ---------------------------------------------------------
           Earnings per Diluted Share        $      .40  $      .34

           ---------------------------------------------------------
           Net Income                        $    6,146  $    5,282
           ---------------------------------------------------------
           Return on Average Equity                16.6%       15.0%
           ---------------------------------------------------------
           Book Value per Share              $    10.28  $     9.38
           ---------------------------------------------------------
           Total Period End Loans            $1,478,331  $1,300,684
           ---------------------------------------------------------
           Total Period End Deposits         $1,563,867  $1,424,762
           ---------------------------------------------------------

"We are very  pleased with the 17.6%  earnings per diluted  share growth and the
16.6% return on average  shareholder equity in the second quarter of 2005", said
Robert D. Sznewajs,  President and CEO.  "Continued strong core loan and deposit
growth,  combined  with an improved  net  interest  margin of 4.93%  during this
rising  interest rate  environment has driven the Company's net income to record
levels for the second quarter of 2005."

Financial Results:  For the quarter ended June 30, 2005, net interest income was
$21.0  million,  an increase  of 15% or $2.7  million  compared  with the second
quarter of 2004.  Growth in average loan and deposit  balances of nearly 15% and
10%,  respectively,  from second quarter of 2004,  augmented by improved earning
asset and deposit mixes,






West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 2 of 9


contributed to the higher net interest income.  Mainly due to a shift in earning
asset mix towards loans and higher value of non-interest bearing demand deposits
from rising short-term interest rates, the net interest margin expanded to 4.93%
from 4.68% in the second quarter of 2004.

The provision for loan losses was $.825 million in the second quarter 2005, down
from $1.0 million in the same quarter last year, as the Company  experienced net
loan recoveries in the second quarter 2005.

Second quarter 2005 total  non-interest  income of $6.1 million  increased 6% or
$.4 million from the same quarter  last year.  The Company had strong  growth of
$.2 million or 19% in payment system  revenues,  which include  interchange  and
merchant card revenues. Trust revenue also showed robust growth,  increasing 30%
or $.2 million  since  second  quarter of 2004,  while  deposit  service  charge
revenues  were up $.2 million or 11% over the same  period.  Mainly due to a $.4
million gain on sale associated with the sale of the Company's $5 million credit
card portfolio in the most recent quarter,  other non-interest  income increased
$.5 million from the second  quarter of 2004.  These  increases  were  partially
offset by a $.2 million  decline in gains on sales of loans from the same period
a year ago and a $.4 million loss on the sale of  investment  securities  in the
second quarter of 2005.

Total  non-interest  expense increased $1.9 million or 12% in the second quarter
of 2005 from the same quarter in 2004. Personnel expense grew $1.4 million, with
the  majority of the  increase  resulting  from new branch team  members in late
2004, increased variable pay due to higher loan originations,  and the hiring of
additional  commercial  lenders.  The remaining  expense growth came from higher
marketing costs  associated  with the  introduction of the totally free checking
product in the Oregon market in the most recent quarter,  as well as from higher
rent and transaction processing expenses.

Annualized  net  recoveries  were 0.02% of average  loans in the second  quarter
2005,  an  improvement  from  annualized  net  charge-offs  of 0.18% in the same
quarter a year ago. Non-performing assets at June 30, 2005, were $1.8 million or
0.09% of total assets, down from $6.6 million or 0.38% a year ago.



West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 3 of 9


During the second quarter of 2005, consistent with its capital plan, the Company
repurchased approximately 108,000 shares at an average cost of $21.94 per share.
At June 30, 2005,  approximately  583,000 shares  remained  available for future
repurchases under the Company's share repurchase program.

West Coast Bancorp also  announced  operating  earnings of $11.5 million or $.75
per fully  diluted  share for the six months  ended June 30,  2005,  compared to
operating earnings of $10.5 million or $.67 per fully diluted share for the same
period in 2004.

Operating  earnings is a non-GAAP  (Generally  Accepted  Accounting  Principles)
financial  measure  that is derived by  adjusting  the  Company's  net income to
exclude  the  April  4,  2005,   announced   first   quarter   recording  of  an
other-than-temporary,  non-cash  impairment  charge of approximately $.8 million
after tax or $.05 per  diluted  share  related to its $5 million  investment  in
Freddie Mac  preferred  stock.  This  security,  which was purchased in November
1999,  resets its coupon to the  five-year  treasury note rate every five years.

The  following  table  reconciles  net income to operating  earnings,  including
per-share figures:

(Dollars in thousands, except per share data)
- ---------------------------------------------      Six months ended June 30,
                                                  -------------------------
                                                   2005               2004
                                                  -------           -------
Net income                                        $10,666           $10,453
Add back:  Impairment charge on securities,
  net of tax                                          803                --
                                                  -------           -------
  Operating earnings                              $11,469           $10,453
                                                  =======           =======

Earnings per Diluted Share based on
  Net income                                      $  0.70           $  0.67
  Operating earnings                              $  0.75           $  0.67

Return on Average Equity based on
  Net income                                         14.5%             14.9%
  Operating earnings                                 15.6%             14.9%


Management  uses this non-GAAP  information  internally  and has disclosed it to
investors based on its belief that the information provides additional, valuable
information  relating to its  operating  earnings as compared to prior  periods.





West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 4 of 9


Other:

The Company will hold a webcast  conference  call  Wednesday,  July 20, 2005, at
8:30 a.m.  Pacific Time,  during which the Company will discuss  second  quarter
2005 results,  review its strategic progress,  and provide  management's current
earnings  expectations for the full year 2005. To access the conference call via
a live webcast,  go to  www.wcb.com  and click on Investor  Relations/Conference
Call/West  Coast Bancorp  Webcast.  The conference  call may also be accessed by
dialing  877-604-2074  a few minutes  prior to 8:30 a.m.  PDT.  The call will be
available  for replay by accessing  the  Company's  website at  www.wcb.com  and
clicking  on  Investor   Relations/Conference   Call/Archived   Conference  Call
(Replay).


West Coast  Bancorp is a Northwest  bank  holding  company  with $1.8 billion in
assets,  operating 52 offices in Oregon and Washington.  West Coast Bancorp, the
parent  company of West Coast Bank and West Coast  Trust,  is  headquartered  in
Oregon.  West Coast Bank serves  clients who seek the  resources,  sophisticated
products and expertise of larger  financial  institutions,  along with the local
decision  making,  market  knowledge,  and  customer  service  orientation  of a
community  bank.  The  Company  offers  a broad  range of  banking,  investment,
fiduciary and trust services. For more information, please visit the Company web
site at www.wcb.com.


Forward Looking Statements:

Statements in this release  regarding future events,  performance or results are
"forward-looking  statements"  within  the  meaning  of the  Private  Securities
Litigation  Reform  Act of 1995  ("PSLRA")  and are  made  pursuant  to the safe
harbors  of the  PSLRA.  Actual  results  could be quite  different  from  those
expressed or implied by the forward-looking statements. Factors that could cause
results to differ from forward-looking statements include, among others: general
economic and banking business  conditions;  evolving banking industry standards;
competitive  factors,  including  pricing pressures on Bancorp's yields on loans
and rates paid on deposits; changing customer investment,  deposit and borrowing
behaviors;  changing  interest  rate  environments,  including the shape and the
level of the yield  curve,  which could  decrease  net  interest  income and fee
income,  including  reducing gains on sales of loans;  vendor  service  quality;
changes in laws and other legal  developments;  changes in government funding of
Small  Business  Administration  ("SBA")  loans;  and changes in  technology  or
required investments in technology.



West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 5 of 9


Furthermore,  the forward-looking statements are subject to risks related to the
Company's  ability  to:  attract  and  retain  lending  officers  and  other key
personnel;  close loans in the pipeline;  generate loan and deposit  balances at
projected spreads; maintain asset quality; control the level of net charge-offs;
sustain  fee income  generation;  retain  customers  of greatest  value;  create
revenue  growth  from  investments  in new team  members and  branches,  control
expenses;  monitor  and  manage the  Company's  internal  control  environments,
including disclosure and financial reporting controls, and other matters.

Readers  are  cautioned  not to  place  undue  reliance  on the  forward-looking
statements  which  reflect  management's  analysis  only  as of the  date of the
statements. Readers should carefully review the disclosures we file from time to
time  with  the  Securities  and  Exchange  Commission.  Bancorp  undertakes  no
obligation to publicly  review or update  forward-looking  statements to reflect
events or circumstances that arise after the date of this report.





West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 6 of 9




                                                                                    West Coast Bancorp
                                                                            Consolidated Income Statements
                                                            ---------------------------------------------------------------

 (Unaudited)                                                        Three months ended                  Six months ended
                                                            ----------------------------------       ----------------------
 (Dollars and shares in thousands)                                 June 30,           March 31,             June 30,
                                                              2005         2004         2005           2005         2004
                                                            --------     --------     --------       --------      --------
                                                                                                    
 Net interest income
   Interest and fees on loans                               $ 24,666     $ 19,170     $ 22,471       $ 47,137      $ 38,106
   Interest on investment securities                           2,603        3,284        2,692          5,294         6,766
   Other interest income                                          52           18           39             92            32
                                                            --------     --------     --------       --------      --------
 Total interest income                                        27,321       22,472       25,202         52,523        44,904
 Interest expense on deposit accounts                          4,596        2,636        3,761          8,357         5,387
 Interest on borrowings including subordinated debentures      1,697        1,544        1,567          3,264         2,988
                                                            --------     --------     --------       --------      --------
 Total interest expense                                        6,293        4,180        5,328         11,621         8,375
                                                            --------     --------     --------       --------      --------
   Net interest income                                        21,028       18,292       19,874         40,902        36,529

 Provision for loan loss                                         825        1,000           --            825         1,900
 Non-interest income
   Service charges on deposit accounts                         2,020        1,825        1,891          3,911         3,679
   Other service charges, commissions and fees                 2,140        1,940        2,085          4,225         3,645
   Trust revenues                                                696          537          567          1,263         1,037
   Gains on sales of loans                                       901        1,117          775          1,676         2,030
   Other                                                         755          280          270          1,025           816
   Loss on impairment of securities                               --           --       (1,316)        (1,316)           --
   Gains (losses) on sales of securities                        (373)          75           --           (373)           75
                                                            --------     --------     --------       --------      --------
 Total non-interest income                                     6,139        5,774        4,272         10,411        11,282
 Non-interest expense
   Salaries and employee benefits                              9,982        8,580        9,674         19,657        17,501
   Equipment                                                   1,264        1,307        1,253          2,518         2,607
   Occupancy                                                   1,531        1,313        1,539          3,069         2,887
   Check and other transaction processing                        834          664          758          1,592         1,294
   Professional fees                                             561          504        1,099          1,660           918
   Postage, printing and office supplies                         707          662          629          1,336         1,304
   Marketing                                                   1,029          639          601          1,630         1,130
   Communications                                                328          277          272            600           567
   Litigation settlement charge                                   --           --          800            800            --
   Other non-interest expense                                    929        1,355          849          1,777         2,281
                                                            --------     --------     --------       --------      --------
 Total non-interest expense                                   17,165       15,301       17,474         34,639        30,489
                                                            --------     --------     --------       --------      --------
 Income before income taxes                                    9,177        7,765        6,672         15,849        15,422
 Provision for income taxes                                    3,031        2,483        2,153          5,183         4,969
                                                            --------     --------     --------       --------      --------
 Net income                                                 $  6,146     $  5,282     $  4,519       $ 10,666      $ 10,453
                                                            ========     ========     ========       ========      ========

     Basic earnings per share                               $   0.42     $   0.35     $   0.31       $   0.73      $   0.70
     Diluted earnings per share                             $   0.40     $   0.34     $   0.29       $   0.70      $   0.67

 Weighted average common shares                               14,642       14,890       14,726         14,684        14,917
 Weighted average diluted shares                              15,246       15,542       15,422         15,339        15,593

 Tax equivalent net interest income                         $ 21,395     $ 18,709     $ 20,238       $ 41,633      $ 37,364








West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 7 of 9



                                                                   West Coast Bancorp
                                                              Consolidated Balance Sheets
                                                              ---------------------------

                                                        June 30,         June 30,       March 31,
(Dollars and shares in thousands, unaudited)              2005             2004           2005
                                                       ----------       ----------     ----------
                                                                              
Assets:
Cash and cash equivalents                              $   78,299       $   51,411     $   58,968
Investments                                               231,499          308,688        258,181
Total loans                                             1,478,331        1,300,684      1,432,446
Allowance for loan losses                                 (19,897)         (19,123)       (18,997)
                                                       ----------       ----------     ----------
Loans, net                                              1,458,434        1,281,561      1,413,449
Other assets                                               79,095           75,683         75,704
                                                       ----------       ----------     ----------
     Total assets                                      $1,847,327       $1,717,343     $1,806,302
                                                       ==========       ==========     ==========

Liabilities and Stockholders' Equity:
Demand                                                 $  428,825       $  366,211     $  395,323
Savings and interest bearing demand                       761,587          726,171        758,783
Certificates of deposits                                  373,455          332,380        355,182
                                                       ----------       ----------     ----------
Total deposits                                          1,563,867        1,424,762      1,509,288
Borrowings and subordinated debentures                    119,326          140,341        135,142
Other liabilities                                          12,667           11,906         15,038
                                                       ----------       ----------     ----------
     Total liabilities                                  1,695,860        1,577,009      1,659,468
Stockholders' equity                                      151,467          140,334        146,834
                                                       ----------       ----------     ----------
     Total liabilities and stockholders' equity        $1,847,327       $1,717,343     $1,806,302
                                                       ==========       ==========     ==========

Common shares outstanding period end                       14,737           14,968         14,775
Book value per common share                            $    10.28       $     9.38     $     9.94
Tangible book value per common share                   $    10.25       $     9.33     $     9.91






                                                                                   West Coast Bancorp
                                                                           Period End Loan Portfolio By Category
                                                                           -------------------------------------

                                                        June 30,         June 30,        Change                    March 31,
(Dollars in thousands, unaudited)                         2005             2004          Amount          %           2005
                                                       ----------       ----------     ----------       ---        -------
                                                                                                 
Commercial loans                                       $  360,872       $  271,670     $   89,202        33%    $  357,505
Real estate construction loans                            148,487          123,144         25,343        21%       125,959
Real estate mortgage loans                                221,735          199,340         22,395        11%       215,580
Real estate commercial loans                              714,291          670,372         43,919         7%       698,864
Installment and other consumer loans                       32,946           36,158         (3,212)       -9%        34,538
                                                       ----------       ----------     ----------
 Total loans                                           $1,478,331       $1,300,684     $  177,647        14%    $1,432,446
                                                       ==========       ==========     ==========               ==========

(Reconciliation to GAAP financial measures)*
Total loans excluding real estate commercial loans     $  764,040       $  630,312     $  133,728        21%    $  733,582
Real estate commercial loans                              714,291          670,372         43,919         7%       698,864
                                                       ----------       ----------     ----------
  Total loans                                          $1,478,331       $1,300,684     $  177,647        14%    $1,432,446
                                                       ==========       ==========     ==========               ==========



*Management uses this non-GAAP information  internally,  and has disclosed it to
investors,  based  on its  belief  that  the  information  provides  additional,
valuable  information relating to its operating results in light of its business
strategies.



West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 8 of 9




                                                                                      West Coast Bancorp
                                                                                    Financial Information
                                                             -------------------------------------------------------------------
                                                              Second         Second         First          Year          Year
(Dollars in thousands except for per share data, unaudited)   Quarter        Quarter       Quarter       to date        to date
(all rates have been annualized where appropriate)             2005           2004          2005           2005          2004
                                                             ----------    ----------    ----------     ----------    ----------
                                                                                                        
PERFORMANCE RATIOS
 - Return on average assets                                    1.34%         1.25%         1.02%          1.18%         1.25%
 - Return on average common equity                            16.61%        15.04%        12.38%         14.51%        14.92%
 - Non-interest income to average assets                       1.33%         1.36%         0.97%          1.15%         1.35%
 - Non-interest expense to average assets                      3.73%         3.62%         3.95%          3.84%         3.65%
 - Efficiency ratio, tax equivalent                            61.5%         62.7%         67.7%          64.5%         62.8%

NET INTEREST MARGIN
 - Yield on interest-earning assets                            6.38%         5.73%         6.12%          6.25%         5.79%
 - Rate on interest-bearing liabilities                        1.98%         1.39%         1.73%          1.85%         1.39%
 - Net interest spread                                         4.40%         4.34%         4.39%          4.40%         4.40%
 - Net interest margin                                         4.93%         4.68%         4.84%          4.89%         4.73%

AVERAGE ASSETS
 - Investment securities                                 $  257,743    $  310,021    $  264,062     $  260,885    $  313,881

 - Commercial loans                                      $  368,485    $  265,072    $  352,067     $  360,321    $  255,767
 - Real estate construction loans                           139,947       122,769       118,194        129,131       120,068
 - Real estate mortgage loans                               217,670       191,269       213,969        215,829       186,751
 - Real estate commercial loans                             714,201       667,922       702,705        708,484       661,976
 - Installment and other consumer loans                      33,162        37,483        35,359         34,255        38,022
                                                         ----------    ----------    ----------     ----------    ----------
 - Total loans                                           $1,473,465    $1,284,515    $1,422,294     $1,448,020    $1,262,584

 - Total interest earning assets                         $1,741,618    $1,606,929    $1,695,109     $1,718,492    $1,587,646
 - Other assets                                             103,255        94,940        99,299        101,288        93,527
                                                         ----------    ----------    ----------     ----------    ----------
 - Total assets                                          $1,844,873    $1,701,869    $1,794,408     $1,819,780    $1,681,173

AVERAGE LIABILITIES & EQUITY
 - Demand deposits                                       $  405,760    $  335,647    $  378,054     $  391,984    $  318,314
 - Interest bearing demand,
    savings, and money market                               766,658       732,928       755,550        761,134       733,475
 - Certificates of deposits                                 366,109       332,552       347,852        357,031       330,985
                                                         ----------    ----------    ----------     ----------    ----------
 - Total deposits                                        $1,538,527    $1,401,127    $1,481,456     $1,510,149    $1,382,774

 - Borrowings and subordinated debentures                $  145,039    $  147,943    $  148,118     $  146,570    $  147,633

 - Total interest bearing liabilities                    $1,277,806    $1,213,423    $1,251,519     $1,264,735    $1,212,093
 - Other liabilities                                        418,635       347,220       394,847        406,807       328,193
                                                         ----------    ----------    ----------     ----------    ----------
 - Total liabilities                                     $1,696,441    $1,560,643    $1,646,366     $1,671,542    $1,540,286
 - Average common equity                                    148,432       141,226       148,042        148,238       140,887
                                                         ----------    ----------    ----------     ----------    ----------
 - Total average liabilities and common equity           $1,844,873    $1,701,869    $1,794,408     $1,819,780    $1,681,173

AVERAGE ASSET/LIABILITY RATIOS
 - Average stockholders' equity to average assets              8.05%         8.30%         8.25%          8.15%         8.38%
 - Average int. earning assets to int. bearing liabilities    136.3%        132.4%        135.4%         135.9%        131.0%
 - Average loans to average assets                             79.9%         75.5%         79.3%          79.6%         75.1%
 - Interest bearing deposits to assets                         61.4%         62.6%         61.5%          61.5%         63.3%







West COAST BANCORP REPORTS SECOND QUARTER 2005 EARNINGS
July 19, 2005
Page 9 of 9




                                                                                       West Coast Bancorp
                                                                        Allowance For Loan Losses and Net Charge-offs
                                                                        ---------------------------------------------

                                                                     Quarter ended    Quarter ended    Quarter ended
                                                                       June 30,          June 30,        March 31,
(Dollars in thousands, unaudited)                                        2005             2004             2005
                                                                       -------           -------          -------
                                                                                                 
Allowance for loan losses, beginning of period                         $18,997           $18,685          $18,971
  Provision for loan loss                                                  825             1,000               --

  Charge-offs                                                              195               744              195
  Recoveries                                                               270               182              221
                                                                       -------           -------          -------
    Net (recoveries) charge-offs                                           (75)              562              (26)

                                                                       -------           -------          -------
Total allowance for loan losses                                        $19,897           $19,123          $18,997
                                                                       =======           =======          =======

Net loan charge-offs to average loans (annualized)                       -0.02%             0.18%           -0.01%




                                                  Full year         Full year
                                                   June 30,          June 30,
(Dollars in thousands, unaudited)                    2005              2004
                                                   -------           -------
Allowance for loan losses, beginning of period     $18,971           $18,131
  Provision for loan loss                              825             1,900

  Charge-offs                                          389             1,314
  Recoveries                                           490               406
                                                   -------           -------
    Net Charge-offs                                   (101)              908

                                                   -------           -------
Total allowance for loan losses                    $19,897           $19,123
                                                   =======           =======

Net loan charge-offs to average loans (annualized)   -0.01%             0.14%




                                                                West Coast Bancorp
                                                              Non-performing Assets
                                                              ---------------------

                                                   June 30,          June 30,        March 31,
(Dollars in thousands, unaudited)                    2005              2004             2005
                                                   -------           -------          -------
                                                                             
Non-accruing loans                                 $ 1,556           $ 5,201          $ 3,695
90 day delinquencies                                    --                --              301
                                                   -------           -------          -------
  Total non-performing loans                         1,556             5,201            3,996

Other real estate owned                                198             1,382              384
                                                   -------           -------          -------
Total non-performing assets                        $ 1,754           $ 6,583          $ 4,380
                                                   =======           =======          =======

Allowance for loan losses to total loans              1.35%             1.47%            1.33%
Non-performing loans to total loans                   0.11%             0.40%            0.28%
Allowance for loan losses to non-performing loans     1279%              368%             475%
Non-performing assets to total assets                 0.09%             0.38%            0.24%
Allowance for loan losses to non-performing assets    1134%              290%             434%