<TABLE> <S> <C>

<ARTICLE>                     UT

<LEGEND>
This schedule contains summary financial information extracted from the December
31, 1999 Financial  Statements included in IES Utilities Inc.'s Form 10-K and is
qualified in its entirety by reference to such Financial Statements.
</LEGEND>

<CIK>     0000052485
<NAME>     IES UTILITIES INC.
<MULTIPLIER>     1,000

<S>                                                        <C>
<PERIOD-TYPE>                                      12-MOS
<FISCAL-YEAR-END>                                              DEC-31-1999
<PERIOD-START>                                                 JAN-01-1999
<PERIOD-END>                                                   DEC-31-1999
<BOOK-VALUE>                                                      PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                        1,377,298
<OTHER-PROPERTY-AND-INVEST>                                        116,656
<TOTAL-CURRENT-ASSETS>                                             125,502
<TOTAL-DEFERRED-CHARGES>                                            13,321
<OTHER-ASSETS>                                                     123,031
<TOTAL-ASSETS>                                                   1,755,808
<COMMON>                                                            33,427
<CAPITAL-SURPLUS-PAID-IN>                                          279,042
<RETAINED-EARNINGS>                                                252,953
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                     565,422
<PREFERRED-MANDATORY>                                                    0
<PREFERRED>                                                         18,320
<LONG-TERM-DEBT-NET>                                               551,079
<SHORT-TERM-NOTES>                                                  56,946
<LONG-TERM-NOTES-PAYABLE>                                                0
<COMMERCIAL-PAPER-OBLIGATIONS>                                           0
<LONG-TERM-DEBT-CURRENT-PORT>                                       51,196
<PREFERRED-STOCK-CURRENT>                                                0
<CAPITAL-LEASE-OBLIGATIONS>                                         25,977
<LEASES-CURRENT>                                                    13,307
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                     473,561
<TOT-CAPITALIZATION-AND-LIAB>                                    1,755,808
<GROSS-OPERATING-REVENUE>                                          800,696
<INCOME-TAX-EXPENSE>                                                49,385 <F1>
<OTHER-OPERATING-EXPENSES>                                         639,197
<TOTAL-OPERATING-EXPENSES>                                         639,197 <F1>
<OPERATING-INCOME-LOSS>                                            161,499
<OTHER-INCOME-NET>                                                   6,184
<INCOME-BEFORE-INTEREST-EXPEN>                                     167,683
<TOTAL-INTEREST-EXPENSE>                                            51,852
<NET-INCOME>                                                        66,446
<PREFERRED-STOCK-DIVIDENDS>                                            914
<EARNINGS-AVAILABLE-FOR-COMM>                                       65,532
<COMMON-STOCK-DIVIDENDS>                                            87,951
<TOTAL-INTEREST-ON-BONDS>                                           42,873
<CASH-FLOW-OPERATIONS>                                             161,703
<EPS-BASIC>                                                              0 <F2>
<EPS-DILUTED>                                                            0 <F2>


<FN>
<F1> Income tax expense is not included in Operating Expense in the Consolidated
     Statements of Income.

<F2>Earnings  per share of common  stock is not  reflected  because  all  common
    shares are held by Alliant Energy Corporation.
</FN>

</TABLE>