<ARTICLE>                     5
<LEGEND>
     THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE 
     COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEET AND STATEMENT OF INCOME
     TAXES QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FORM 10-Q.
</LEGEND>
<CIK>                         0001001185
<NAME>                        IDX Systems Corporation
<MULTIPLIER>                  1,000
<CURRENCY>                    U.S. Dollars
       
                                                
<PERIOD-TYPE>                 6-MOS                   6-MOS 
<FISCAL-YEAR-END>             DEC-31-1997             DEC-31-1996 
<PERIOD-START>                JAN-01-1997             JAN-01-1996
<PERIOD-END>                  JUN-30-1997             JUN-30-1996
<EXCHANGE-RATE>                         1                       1
<CASH>                             12,039                  15,617 
<SECURITIES>                       84,463                  69,899 
<RECEIVABLES>                      46,930                  35,477
<ALLOWANCES>                        (889)                   (579)      
<INVENTORY>                             0                       0  
<CURRENT-ASSETS>                  149,222                 123,468 
<PP&E>                             41,574                  33,970   
<DEPRECIATION>                     20,852                  16,877
<TOTAL-ASSETS>                    172,443                 141,358
<CURRENT-LIABILITIES>              30,199                  20,124
<BONDS>                             2,500                   2,700
<PREFERRED-MANDATORY>                   0                       0 
<PREFERRED>                             0                       0
<COMMON>                              212                     209
<OTHER-SE>                        137,623                 116,810
<TOTAL-LIABILITY-AND-EQUITY>      172,443                 141,358
<SALES>                            17,373                  15,675
<TOTAL-REVENUES>                   92,606                  76,427
<CGS>                              13,290                  12,757
<TOTAL-COSTS>                      80,745                  66,267
<OTHER-EXPENSES>                        0                       0
<LOSS-PROVISION>                      205                      51
<INTEREST-EXPENSE>                     57                      67
<INCOME-PRETAX>                    14,028                  12,009 
<INCOME-TAX>                        5,611                   4,800
<INCOME-CONTINUING>                 8,417                   7,209 
<DISCONTINUED>                          0                       0
<EXTRAORDINARY>                         0                       0
<CHANGES>                               0                       0
<NET-INCOME>                        8,417                   7,209 
<EPS-PRIMARY>                         .39                     .34 
<EPS-DILUTED>                         .39                     .34