Iowa · Investor Owned

Interstate Power and Light Co Electricity Rates

Average residential price, customers served and derived annual usage from EIA Form 861, 2024 release.

17.90¢
Avg residential price / kWh
417.2K
Residential customers
+31.0%
vs Iowa average
$1,534
Implied avg annual bill

Interstate Power and Light Co charged an average of 17.90¢ per kWh to residential customers in 2024 - far above the Iowa average and above the US average.

Interstate Power and Light Co is investor owned - a shareholder-owned company whose retail rates are set through a state regulatory commission. Its reported average residential price is far above the Iowa customer-weighted average (+31.0%). Its customers used near the national residential norm at about 8,566 kWh a year each.

How this price compares

Ranked by price against the 24 utilities reporting residential rates in Iowa, Interstate Power and Light Co comes in last, the highest reported average price in the state. The state's range runs from North West Rural Electric Coop at 9.26¢ to Interstate Power and Light Co at 17.90¢, so where a household sits inside Iowa depends far more on which utility serves it than on the statewide average alone.

Against the 2 other investor owned utilities reporting in Iowa, which averaged 13.27¢, Interstate Power and Light Co is far above its own ownership class within the state (+34.9%).

All figures come from the 2024 release, so no comparison mixes vintages. The state figure is customer-weighted across 24 reporting utilities.

Where Interstate Power and Light Co sits among Iowa utilities

2024 average residential price across the 24 utilities reporting a rate in Iowa

17.90¢/kWh 0th affordability percentile Highest value among 24 reporting utilities

Interstate Power and Light Co

average residential price, equal-width bands

Each bar spans 2¢/kWh. Taller bars contain more utilities; the dashed marker locates this utility. Hover, focus or tap a bar for its exact count and share.

Source EIA Form 861 · 2024

Interstate Power and Light Co average residential price against three benchmarks, 2024
BenchmarkPrice / kWhDifference
Interstate Power and Light Co 17.90¢ -
Iowa (customer-weighted, 24 utilities) 13.67¢ +31.0%
United States average 16.48¢ +8.6%
Investor Owned utilities nationally (183) 17.36¢ +3.1%

Rate against consumption: Iowa utilities

Each dot is one of the 24 Iowa utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Interstate Power and Light Co is highlighted. In Iowa the cheapest rate belongs to North West Rural Electric Coop (9.26¢) while the smallest implied annual bill belongs to City of Ames - (IA) ($828) - a household's bill is price multiplied by consumption, so the two rankings are different lists. 2×2 strategic matrix plotting 24 entities by Price rank percentile (100 = most expensive in state) (X) and Consumption rank percentile (100 = heaviest use) (Y), with a crosshair dividing the plot into four quadrants. Costly rate, heavy useCheaper rate, heavy useCostly rate, light useCheaper rate, light use -50050100150 -50050100150 Price rank percentile (100 = most expensive in state) Consumption rank percentile (100 = heaviest use)
Each dot is one of the 24 Iowa utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Interstate Power and Light Co is highlighted. In Iowa the cheapest rate belongs to North West Rural Electric Coop (9.26¢) while the smallest implied annual bill belongs to City of Ames - (IA) ($828) - a household's bill is price multiplied by consumption, so the two rankings are different lists.

Scale and consumption

Interstate Power and Light Co reported 417.2K residential customers, ranking 2nd of 24 utilities in Iowa by customers served and covering 33.6% of the state's reported residential customers.

Dividing reported residential sales by customers served gives about 8,566 kWh per customer per year - near the national residential norm, implying a typical annual bill near $1,534.

Within Iowa the median reporting utility sells about 12,703 kWh per customer, so Interstate Power and Light Co customers use -32.6% against their own state's middle. Consumption this light usually tracks denser housing, gas heating or a milder service territory, which softens the bill impact of a high per-kWh price.

Every utility reporting in Iowa

All 24 utilities reporting bundled residential service in Iowa, largest first, with Interstate Power and Light Co marked. The named companies either side of it are the ones a household in this state might otherwise be served by.

Residential utilities in Iowa, 2024, ranked by customers served
Utility Ownership Customers Avg ¢/kWh
MidAmerican Energy Co Investor Owned 632.4K 11.01¢
Interstate Power and Light Co (this page) Investor Owned 417.2K 17.90¢
Linn County REC Cooperative 30.3K 14.23¢
City of Ames - (IA) Municipal 25.0K 12.10¢
Eastern Iowa Light & Power Coop Cooperative 20.7K 13.56¢
Cedar Falls Utilities Municipal 17.8K 10.42¢
Midland Power Coop Cooperative 11.9K 13.60¢
Maquoketa Valley Rrl Elec Coop Cooperative 11.1K 13.76¢
Board of Water Electric & Communications Municipal 10.1K 12.63¢
Iowa Lakes Electric Coop Cooperative 9.7K 13.78¢
North West Rural Electric Coop Cooperative 9.4K 9.26¢
Access Energy Coop Cooperative 8.8K 14.95¢
East-Central Iowa Rural Elec Coop Cooperative 7.4K 13.28¢
Consumers Energy Coop - (IA) Cooperative 6.9K 15.00¢
MiEnergy Cooperative Cooperative 6.0K 16.91¢
Heartland Power Coop Cooperative 4.4K 12.67¢
Butler County Rural Elec Coop - (IA) Cooperative 3.9K 15.43¢
Prairie Energy Coop Cooperative 3.4K 14.34¢
City of Maquoketa - (IA) Municipal 2.8K 13.15¢
City of Independence - (IA) Municipal 2.7K 13.82¢
Amana Society Service Co Investor Owned 709 15.53¢
City of Preston Municipal 521 15.39¢
Federated Rural Electric Assn Cooperative 53 11.82¢
Freeborn Mower Electric Cooperative Cooperative 6 17.00¢

For generation mix and price history statewide, see electricity rates in Iowa.

Common questions about Interstate Power and Light Co rates

How much does Interstate Power and Light Co charge per kWh?
Interstate Power and Light Co reported an average residential price of 17.90¢ per kWh across its bundled residential customers in the 2024 EIA Form 861 release. That is an annual average across all its residential customers, not a rate schedule, so an individual bill depends on the tariff, usage pattern and season.
Is Interstate Power and Light Co expensive compared with the rest of Iowa?
Its average residential price is far above the Iowa customer-weighted average of 13.67¢ per kWh, a difference of +31.0%. The state figure is weighted by customers across the 24 utilities reporting residential service in Iowa.
What is the average electricity bill for Interstate Power and Light Co customers?
Dividing reported residential sales by residential customers gives about 8,566 kWh per customer per year. At the reported average price that implies roughly $1,534 a year, or about $128 a month. This is RateWatt's arithmetic on two EIA columns, not a figure EIA publishes.
Who owns Interstate Power and Light Co?
EIA classifies Interstate Power and Light Co as Investor Owned, a shareholder-owned company whose retail rates are set through a state regulatory commission. Nationally, Investor Owned utilities averaged 17.36¢ per kWh in the 2024 release.

What this page does and does not tell you

  • An average across bundled residential customers for the year, revenue divided by sales, not a rate schedule.
  • Form 861 presence is not evidence of availability at an address or of customer choice.

See our methodology, why energy prices vary and understanding rate structures.

Source: U.S. Energy Information Administration (EIA), Form 861 annual electric power industry report, 2024 release. Retrieved and formatted by RateWatt.

Disclaimer: This information is provided for informational purposes only and does not constitute professional or financial advice. Data is sourced from the U.S. Energy Information Administration (EIA). Rates change and averages do not describe any individual account. Consult your utility or a qualified professional before making decisions based on this data.

Every figure on RateWatt is rendered directly from official U.S. Energy Information Administration (EIA) data, no number is typed in by an editor. Average price, customers and sales are reported by EIA Form 861 (2024). Per-customer annual usage, the implied annual bill, the customer-weighted state average and every percentage difference are RateWatt's arithmetic on those reported columns. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2025.