<ARTICLE> UT
<CIK> 0000066004
<NAME> MIDDLESEX WATER COMPANY

                                        
<PERIOD-TYPE>                                 6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               JUN-30-2000
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                  182,849,748
<OTHER-PROPERTY-AND-INVEST>                  2,598,065
<TOTAL-CURRENT-ASSETS>                      18,825,072
<TOTAL-DEFERRED-CHARGES>                    12,649,897
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                             212,922,782
<COMMON>                                    48,211,985
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                         21,988,336
<TOTAL-COMMON-STOCKHOLDERS-EQ>              70,200,321
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                  4,063,062
<LONG-TERM-DEBT-NET>                        82,281,555
<SHORT-TERM-NOTES>                           3,000,000
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                  209,770
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>              57,168,074
<TOT-CAPITALIZATION-AND-LIAB>              216,922,782
<GROSS-OPERATING-REVENUE>                   27,038,331
<INCOME-TAX-EXPENSE>                         1,291,025
<OTHER-OPERATING-EXPENSES>                  21,167,932
<TOTAL-OPERATING-EXPENSES>                  22,458,957
<OPERATING-INCOME-LOSS>                      4,579,374
<OTHER-INCOME-NET>                             120,029
<INCOME-BEFORE-INTEREST-EXPEN>               4,699,403
<TOTAL-INTEREST-EXPENSE>                     2,424,806
<NET-INCOME>                                 2,274,597
<PREFERRED-STOCK-DIVIDENDS>                    127,393
<EARNINGS-AVAILABLE-FOR-COMM>                2,147,204
<COMMON-STOCK-DIVIDENDS>                     3,054,712
<TOTAL-INTEREST-ON-BONDS>                    4,526,917
<CASH-FLOW-OPERATIONS>                       4,814,001
<EPS-BASIC>                                       0.43
<EPS-DILUTED>                                     0.43