Interstate Power and Light Co Rates: Average Bill & Price per kWh

Residential rates for Interstate Power and Light Co and how they compare to the Iowa average — 2024 EIA-861 annual data.

Data through 2024 EIA-861, verified Oct 11, 2026

Residential customers of Interstate Power and Light Co average $127.80/month at 17.9¢/kWh — below the Iowa average of $136.46.

Avg bill (2024)$127.80/moannual average Rate17.9¢/kWh Res. customers417,153 Bill rank#14 in IAof tracked utilities

Where Interstate Power and Light Co rates are heading

Annual residential figures from Form EIA-861, 2019–2024.

Interstate Power and Light Co price per kWh (annual) ▲ 7.2% over 2019–2024
Interstate Power and Light Co price per kWh (annual) 16.6¢ 17.3¢ 17.9¢ 17.9¢ 2019 2024
YearRateAvg billRes. customers
2019 16.7¢/kWh $124.10/mo 405,205
2020 16.61¢/kWh $122.98/mo 407,849
2021 16.84¢/kWh $125.89/mo 410,149
2022 17.75¢/kWh $136.01/mo 412,497
2023 17.86¢/kWh $128.75/mo 414,637
2024 17.9¢/kWh $127.80/mo 417,153

Rate context in Iowa

Statewide residential price trend (12 months) — context for Interstate Power and Light Co's 2024 annual figure.

Iowa price per kWh (12 months) ▲ 4.1% over Jul 25–Jun 26
Iowa price per kWh (12 months) 12.6¢ 14.3¢ 15.9¢ 15.9¢ Jul 25 Jun 26

Interstate Power and Light Co vs its state

Annual utility averages next to the latest statewide monthly figure — different windows, both labeled.

MeasureInterstate Power and Light …Iowa (latest month)
Avg bill $127.80/mo $136.46/mo
Rate 17.9¢/kWh 15.93¢/kWh

Cities served by Interstate Power and Light Co

Common questions

How much is the average electric bill with Interstate Power and Light Co?

Interstate Power and Light Co residential customers averaged $127.80 per month in 2024 (EIA-861 annual data) — about $1,533.58 per year.

What does Interstate Power and Light Co charge per kWh?

Interstate Power and Light Co averaged 17.9¢ per kWh for residential service in 2024 (annual revenue divided by sales, EIA-861). Actual rates depend on your plan and season.

How does Interstate Power and Light Co compare to the Iowa average?

Interstate Power and Light Co bills average $127.80 — lower than the Iowa average of $136.46 (latest EIA month).

How many customers does Interstate Power and Light Co serve?

Interstate Power and Light Co served 417,153 residential customers in 2024, per EIA-861 — one of the largest utilities we track in IA.

Data: Form EIA-861, 2024 annual residential figures for Interstate Power and Light Co. Bill = residential revenue ÷ customers ÷ 12; rate = revenue ÷ sales. State context uses the latest EIA monthly data. See methodology.