<TABLE> <S> <C>

<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from the Form
10-Q for March 31, 1999, and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<CIK> 0000066904
<NAME> MISSISSIPPI POWER COMPANY
<MULTIPLIER> 1,000
       
<S>                                                    <C>
<PERIOD-TYPE>                                                              3-MOS
<FISCAL-YEAR-END>                                                    Dec-31-1999
<PERIOD-END>                                                         Mar-31-1999
<BOOK-VALUE>                                                            PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                              1,024,207
<OTHER-PROPERTY-AND-INVEST>                                                  978
<TOTAL-CURRENT-ASSETS>                                                   116,532
<TOTAL-DEFERRED-CHARGES>                                                  57,941
<OTHER-ASSETS>                                                                 0
<TOTAL-ASSETS>                                                         1,199,658
<COMMON>                                                                  37,691
<CAPITAL-SURPLUS-PAID-IN>                                                179,799
<RETAINED-EARNINGS>                                                      167,134
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                           384,624
<PREFERRED-MANDATORY>                                                     35,000
<PREFERRED>                                                               31,809
<LONG-TERM-DEBT-NET>                                                     172,773
<SHORT-TERM-NOTES>                                                        61,500
<LONG-TERM-NOTES-PAYABLE>                                                120,000
<COMMERCIAL-PAPER-OBLIGATIONS>                                                 0
<LONG-TERM-DEBT-CURRENT-PORT>                                             50,020
<PREFERRED-STOCK-CURRENT>                                                      0
<CAPITAL-LEASE-OBLIGATIONS>                                                    0
<LEASES-CURRENT>                                                               0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                           343,932
<TOT-CAPITALIZATION-AND-LIAB>                                          1,199,658
<GROSS-OPERATING-REVENUE>                                                122,435
<INCOME-TAX-EXPENSE>                                                       4,273
<OTHER-OPERATING-EXPENSES>                                               104,313
<TOTAL-OPERATING-EXPENSES>                                               108,586
<OPERATING-INCOME-LOSS>                                                   13,849
<OTHER-INCOME-NET>                                                           406
<INCOME-BEFORE-INTEREST-EXPEN>                                            14,255
<TOTAL-INTEREST-EXPENSE>                                                   6,559
<NET-INCOME>                                                               7,696
<PREFERRED-STOCK-DIVIDENDS>                                                  503
<EARNINGS-AVAILABLE-FOR-COMM>                                              7,193
<COMMON-STOCK-DIVIDENDS>                                                  13,800
<TOTAL-INTEREST-ON-BONDS>                                                      0
<CASH-FLOW-OPERATIONS>                                                   (15,204)
<EPS-PRIMARY>                                                                  0
<EPS-DILUTED>                                                                  0
        



</TABLE>