<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary information extracted from the Registrant Company
Consolidated Balance Sheet (Unaudited) for September and Consolidated Statement
of Operations (Unaudited) for the Nine months ended September 30, 2000 and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0001110458
<NAME> INSIGHT MIDWEST, L.P.
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 2,979
<SECURITIES> 0
<RECEIVABLES> 16,360
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 25,680
<PP&E> 826,677
<DEPRECIATION> 168,563
<TOTAL-ASSETS> 1,672,861
<CURRENT-LIABILITIES> 86,498
<BONDS> 0
0
0
<COMMON> 273,363
<OTHER-SE> 1,672,861
<TOTAL-LIABILITY-AND-EQUITY> 282,176
<SALES> 282,176
<TOTAL-REVENUES> 95,653
<CGS> 296,661
<TOTAL-COSTS> 0
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 80,239
<INCOME-PRETAX> (94,629)
<INCOME-TAX> 0
<INCOME-CONTINUING> (94,629)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (94,629)
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>