⚡ US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

Iowa

Alliant Energy (Interstate Power and Light) electricity rates

What homes pay Alliant Energy (Interstate Power and Light) for electricity, from EIA.

Investor-owned utility, 419,977 homes in Iowa. EIA lists it as Interstate Power and Light Co.

Headlines

Average price
18.3¢ a kWh
Up 3.2% on a year ago
Average bill
$136 a month
Up 4.8% on a year ago
Average use
744 kWh
A month. Iowa 856 kWh
Price rank in Iowa
1 of 2
1 is the most expensive

Over the 12 months to July 2026, Alliant Energy (Interstate Power and Light) homes paid 18.3¢ a kWh, against 14.1¢ across Iowa.

Alliant Energy (Interstate Power and Light) vs Iowa

Alliant Energy (Interstate Power and Light)Iowa
Average price, 12 months to July 202618.3¢14.1¢
Price in July 202620.7¢16.0¢
Average monthly bill, 12 months$136$121
Bill in July 2026$225$193
Average monthly use744 kWh856 kWh
Price change, past year+3.2%+4.5%
Price change since 2019+9.5%+13%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including July 2026

Source: EIA-861M monthly utility survey. Revenue over kilowatt-hours sold, including fixed charges.

Average monthly bill

What an average home pays a month.

Up to and including July 2026

Source: EIA-861M monthly utility survey.