<TABLE> <S> <C>

<ARTICLE>                                      UT
<LEGEND>
This schedule  contains summary  financial  information  extracted from the
September 30, 1999 Financial  Statements  included in IES Utilities  Inc.'s Form
10-Q 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>                                   9-MOS
<FISCAL-YEAR-END>                                          DEC-31-1999
<PERIOD-START>                                             JAN-01-1999
<PERIOD-END>                                               SEP-30-1999
<BOOK-VALUE>                                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                    1,367,850
<OTHER-PROPERTY-AND-INVEST>                                    109,672
<TOTAL-CURRENT-ASSETS>                                         119,894
<TOTAL-DEFERRED-CHARGES>                                        15,722
<OTHER-ASSETS>                                                 127,448
<TOTAL-ASSETS>                                               1,740,586
<COMMON>                                                        33,427
<CAPITAL-SURPLUS-PAID-IN>                                      279,042
<RETAINED-EARNINGS>                                            258,373
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                 570,842
<PREFERRED-MANDATORY>                                                0
<PREFERRED>                                                     18,320
<LONG-TERM-DEBT-NET>                                           551,015
<SHORT-TERM-NOTES>                                               6,626
<LONG-TERM-NOTES-PAYABLE>                                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                                       0
<LONG-TERM-DEBT-CURRENT-PORT>                                   51,196
<PREFERRED-STOCK-CURRENT>                                            0
<CAPITAL-LEASE-OBLIGATIONS>                                     27,523
<LEASES-CURRENT>                                                12,396
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                 502,668
<TOT-CAPITALIZATION-AND-LIAB>                                1,740,586
<GROSS-OPERATING-REVENUE>                                      608,386
<INCOME-TAX-EXPENSE>                                            41,349 <F1>
<OTHER-OPERATING-EXPENSES>                                     476,031
<TOTAL-OPERATING-EXPENSES>                                     476,031 <F1>
<OPERATING-INCOME-LOSS>                                        132,355
<OTHER-INCOME-NET>                                               5,376
<INCOME-BEFORE-INTEREST-EXPEN>                                 137,731
<TOTAL-INTEREST-EXPENSE>                                        39,403
<NET-INCOME>                                                    56,979
<PREFERRED-STOCK-DIVIDENDS>                                        686
<EARNINGS-AVAILABLE-FOR-COMM>                                   56,293
<COMMON-STOCK-DIVIDENDS>                                        73,292
<TOTAL-INTEREST-ON-BONDS>                                       42,701
<CASH-FLOW-OPERATIONS>                                         150,577
<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>