<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted
from the Form 10-Q for September 30, 2000, and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000066904
<NAME> MISSISSIPPI POWER COMPANY
<MULTIPLIER> 1,000

                                                    
<PERIOD-TYPE>                                                              9-MOS
<FISCAL-YEAR-END>                                                    Dec-31-2000
<PERIOD-END>                                                         Sep-30-2000
<BOOK-VALUE>                                                            PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                              1,066,375
<OTHER-PROPERTY-AND-INVEST>                                                2,290
<TOTAL-CURRENT-ASSETS>                                                   167,588
<TOTAL-DEFERRED-CHARGES>                                                  40,287
<OTHER-ASSETS>                                                                 0
<TOTAL-ASSETS>                                                         1,276,540
<COMMON>                                                                  37,691
<CAPITAL-SURPLUS-PAID-IN>                                                191,598
<RETAINED-EARNINGS>                                                      179,065
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                           408,354
<PREFERRED-MANDATORY>                                                     35,000
<PREFERRED>                                                               31,809
<LONG-TERM-DEBT-NET>                                                     182,324
<SHORT-TERM-NOTES>                                                        17,000
<LONG-TERM-NOTES-PAYABLE>                                                188,388
<COMMERCIAL-PAPER-OBLIGATIONS>                                                 0
<LONG-TERM-DEBT-CURRENT-PORT>                                             30,020
<PREFERRED-STOCK-CURRENT>                                                      0
<CAPITAL-LEASE-OBLIGATIONS>                                                    0
<LEASES-CURRENT>                                                               0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                           383,645
<TOT-CAPITALIZATION-AND-LIAB>                                          1,276,540
<GROSS-OPERATING-REVENUE>                                                530,852
<INCOME-TAX-EXPENSE>                                                      29,795
<OTHER-OPERATING-EXPENSES>                                               430,186
<TOTAL-OPERATING-EXPENSES>                                               430,186
<OPERATING-INCOME-LOSS>                                                  100,666
<OTHER-INCOME-NET>                                                         1,578
<INCOME-BEFORE-INTEREST-EXPEN>                                            72,449
<TOTAL-INTEREST-EXPENSE>                                                  23,223
<NET-INCOME>                                                              49,226
<PREFERRED-STOCK-DIVIDENDS>                                                1,510
<EARNINGS-AVAILABLE-FOR-COMM>                                             47,716
<COMMON-STOCK-DIVIDENDS>                                                  41,100
<TOTAL-INTEREST-ON-BONDS>                                                      0
<CASH-FLOW-OPERATIONS>                                                    95,874
<EPS-BASIC>                                                                    0
<EPS-DILUTED>                                                                  0