<ARTICLE>                                               UT

<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
September 30, 2000 Financial  Statements  included in IES Utilities  Inc.'s Form
10-Q and is qualified in its entirety by reference to such Financial Statements.


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


                                                          
<PERIOD-TYPE>                                        9-MOS
<FISCAL-YEAR-END>                                               DEC-31-2000
<PERIOD-START>                                                  JAN-01-2000
<PERIOD-END>                                                    SEP-30-2000
<BOOK-VALUE>                                                       PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                         1,365,486
<OTHER-PROPERTY-AND-INVEST>                                         126,577
<TOTAL-CURRENT-ASSETS>                                              133,836
<TOTAL-DEFERRED-CHARGES>                                             13,108
<OTHER-ASSETS>                                                      117,236
<TOTAL-ASSETS>                                                    1,756,243
<COMMON>                                                             33,427
<CAPITAL-SURPLUS-PAID-IN>                                           279,042
<RETAINED-EARNINGS>                                                 268,317 
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                      580,786
<PREFERRED-MANDATORY>                                                     0
<PREFERRED>                                                          18,320
<LONG-TERM-DEBT-NET>                                                469,708
<SHORT-TERM-NOTES>                                                   77,004
<LONG-TERM-NOTES-PAYABLE>                                                 0
<COMMERCIAL-PAPER-OBLIGATIONS>                                            0
<LONG-TERM-DEBT-CURRENT-PORT>                                        81,560
<PREFERRED-STOCK-CURRENT>                                                 0
<CAPITAL-LEASE-OBLIGATIONS>                                          17,284
<LEASES-CURRENT>                                                     12,057
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                      499,524
<TOT-CAPITALIZATION-AND-LIAB>                                     1,756,243
<GROSS-OPERATING-REVENUE>                                           624,999
<INCOME-TAX-EXPENSE>                                                 43,285 
<OTHER-OPERATING-EXPENSES>                                          491,177
<TOTAL-OPERATING-EXPENSES>                                          491,177 
<OPERATING-INCOME-LOSS>                                             133,822
<OTHER-INCOME-NET>                                                    7,688
<INCOME-BEFORE-INTEREST-EXPEN>                                      141,510
<TOTAL-INTEREST-EXPENSE>                                             38,208
<NET-INCOME>                                                         60,017
<PREFERRED-STOCK-DIVIDENDS>                                             686
<EARNINGS-AVAILABLE-FOR-COMM>                                        59,331
<COMMON-STOCK-DIVIDENDS>                                             43,975
<TOTAL-INTEREST-ON-BONDS>                                            39,002
<CASH-FLOW-OPERATIONS>                                              175,619
<EPS-BASIC>                                                               0 
<EPS-DILUTED>                                                             0 


<F1> Includes $8 of Accumulated Other Comprehensive Income.

<F2> Income tax expense is not included in Operating Expense in the Consolidated Statements of Income.

<F3>Earnings per share of common stock is not reflected because all common shares are held by Alliant Energy Corporation.