<TABLE> <S> <C>
<ARTICLE> UT
<CIK> 0000066004
<NAME> MIDDLESEX WATER COMPANY
<S> <C>
<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
0
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
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
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
</TABLE>
