<ARTICLE>                     9
<LEGEND>
     This schedule contains financial information extracted from the condensed 
Consolidated Statements of Financial Condition as of June 30, 1998 (unaudited)
and the condensed Consolidated Statements of Operations for the three months 
ended June 30, 1998 (unaudited) and is qualified in its entirety by reference 
to such financial statements.
</LEGEND>
<CIK>                                       0000916837                          
<NAME>                                      Long Island Bancorp                 
<MULTIPLIER>                                   1000   
<CURRENCY>                                     u.s. Dollars
       
                             
<PERIOD-TYPE>                   3-mos
<FISCAL-YEAR-END>                              Sep-30-1998
<PERIOD-START>                                 Apr-01-1998
<PERIOD-END>                                   Jun-30-1998
<EXCHANGE-RATE>                                1
<CASH>                                167406  
<INT-BEARING-DEPOSITS>                119058      
<FED-FUNDS-SOLD>                      0      
<TRADING-ASSETS>                      0        
<INVESTMENTS-HELD-FOR-SALE>           2279402     
<INVESTMENTS-CARRYING>                21052         
<INVESTMENTS-MARKET>                  19164         
<LOANS>                               3735728        
<ALLOWANCE>                           34277         
<TOTAL-ASSETS>                        6483887        
<DEPOSITS>                            3678195         
<SHORT-TERM>                          186000         
<LIABILITIES-OTHER>                   185662         
<LONG-TERM>                           11867634        
<PREFERRED-MANDATORY>                 0         
<PREFERRED>                           0         
<COMMON>                              268        
<OTHER-SE>                            577228       
<TOTAL-LIABILITIES-AND-EQUITY>        6483887         
<INTEREST-LOAN>                       69006         
<INTEREST-INVEST>                     38390         
<INTEREST-OTHER>                      0         
<INTEREST-TOTAL>                      107396        
<INTEREST-DEPOSIT>                    39013         
<INTEREST-EXPENSE>                    67630
<INTEREST-INCOME-NET>                 38266        
<LOAN-LOSSES>                         1500         
<SECURITIES-GAINS>                    3883        
<EXPENSE-OTHER>                       0        
<INCOME-PRETAX>                       26330         
<INCOME-PRE-EXTRAORDINARY>            15856        
<EXTRAORDINARY>                       0        
<CHANGES>                             0        
<NET-INCOME>                          15856         
<EPS-PRIMARY>                         0.71       
<EPS-DILUTED>                         0.68         
<YIELD-ACTUAL>                        2.58         
<LOANS-NON>                           50699       
<LOANS-PAST>                          0       
<LOANS-TROUBLED>                      0      
<LOANS-PROBLEM>                       0        
<ALLOWANCE-OPEN>                      34277      
<CHARGE-OFFS>                         1715         
<RECOVERIES>                          451       
<ALLOWANCE-CLOSE>                     0         
<ALLOWANCE-DOMESTIC>                  34277      
<ALLOWANCE-FOREIGN>                   34277     
<ALLOWANCE-UNALLOCATED>               0