<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from Entergy
Mississippi, Inc. financial statements for the quarter ended September 30, 1999
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000066901
<NAME> ENTERGY MISSISSIPPI, INC.
<SUBSIDIARY>
   <NUMBER> 016
   <NAME> ENTERGY MISSISSIPPI, INC.
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,096,569
<OTHER-PROPERTY-AND-INVEST>                     12,528
<TOTAL-CURRENT-ASSETS>                         159,827
<TOTAL-DEFERRED-CHARGES>                       189,004
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               1,457,928
<COMMON>                                       199,326
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                            225,670
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 424,937
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                     50,381
<LONG-TERM-DEBT-NET>                           464,411
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                        0
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                        314
<LEASES-CURRENT>                                    93
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 517,792
<TOT-CAPITALIZATION-AND-LIAB>                1,457,928
<GROSS-OPERATING-REVENUE>                      644,239
<INCOME-TAX-EXPENSE>                            18,425
<OTHER-OPERATING-EXPENSES>                     568,870
<TOTAL-OPERATING-EXPENSES>                     568,870
<OPERATING-INCOME-LOSS>                         75,369
<OTHER-INCOME-NET>                               5,908
<INCOME-BEFORE-INTEREST-EXPEN>                  81,277
<TOTAL-INTEREST-EXPENSE>                        28,403
<NET-INCOME>                                    34,449
<PREFERRED-STOCK-DIVIDENDS>                      2,527
<EARNINGS-AVAILABLE-FOR-COMM>                   31,922
<COMMON-STOCK-DIVIDENDS>                        28,700
<TOTAL-INTEREST-ON-BONDS>                       29,386
<CASH-FLOW-OPERATIONS>                         103,320
<EPS-BASIC>                                        0
<EPS-DILUTED>                                        0