Iowa electric rates and bill calculators
In November 2026, 1,000 kWh costs from $106.69 on MidAmerican Energy to $175.33 on Alliant Energy (Interstate Power and Light) (2 utilities with a complete bill), before sales tax. That is 10.7¢ to 17.5¢ per kWh with all the charges of the tariff. Select your utility to calculate your own bill. Each calculator uses the tariff of the utility. The Iowa Utilities Commission approves these tariffs.
- 2 utilities
- Average bill in 2025: $117.30 a month
- Rates checked November 2, 2026
- 8 rate changes in the last 12 months
Utilities in Iowa
What 1,000 kWh costs in Iowa (November 2026)
The same bill on the tariff of each utility: 1,000 kWh in a 30-day November billing period, before sales tax. The most expensive utility is first. Compare all 92 utilities.
| Utility | 1,000 kWh | Per kWh | Change from October |
|---|---|---|---|
| Alliant Energy (Interstate Power and Light)Schedule 400 · winter rates · Type of electric service: Single-phase (most homes) | $175.33 | 17.53¢ | −$6.70 (−3.7%) |
| MidAmerican EnergySchedule RS · winter rates | $106.69 | 10.67¢ | $0.00 |
See all Iowa electric utilities with their average bills, including the ones without a calculator on this site yet.
Help paying the bill: Alliant Energy (Interstate Power and Light) bill help, MidAmerican Energy bill help.
Cities: electricity in Des Moines, electricity in Ames, electricity in Ankeny, electricity in Cedar Falls, electricity in Cedar Rapids, electricity in Council Bluffs, electricity in Davenport, electricity in Dubuque, electricity in Iowa City, electricity in Marshalltown, electricity in Mason City, electricity in Ottumwa, electricity in Sioux City, electricity in Waterloo, electricity in Waukee, electricity in West Des Moines.
Average electric bill in Iowa
In 2025, the average home in Iowa used 861 kWh a month and paid $117.30 a month (13.6¢ per kWh). The U.S. average was $150.68 (874 kWh, 17.2¢ per kWh). These are yearly averages from the EIA-861 data of the U.S. Energy Information Administration. See the average electric bill in Iowa by utility and by month, the average bill in each state, the average bill of an apartment, business electricity rates in Iowa and natural gas bills in Iowa. To turn watts or kWh into dollars at the Iowa price, use the electricity cost calculator.
| Utility | Homes | kWh a month | Price per kWh | Average bill |
|---|---|---|---|---|
| Alliant Energy (Interstate Power and Light) | 419,451 | 739 | 17.8¢ | $131.38 |
| MidAmerican Energy | 639,558 | 828 | 11.2¢ | $92.85 |
The average bill is different from the 1,000 kWh bill above: it uses the real average kWh of each utility's homes and the rates of 2025.
The same bill in each month of the year
1,000 kWh in a 30-day billing period, calculated for each month with the rates in the tariff for that month. Only the rates change, not the kWh, so the difference comes from seasonal rates and monthly charges.
| Utility | Lowest month | Highest month | Difference |
|---|---|---|---|
| MidAmerican EnergySchedule RS | $106.69January | $132.00June | $25.31 |
Not in this table: Alliant Energy (Interstate Power and Light). This utility has a monthly charge that is not published yet for every month of the year.
Rate changes in Iowa
In the last 12 months, we recorded 8 rate changes in the Iowa tariffs on this site: 4 increases and 4 decreases. Each value is from the official document in the source link. To see what one change does to your bill, use the rate change tool. Rate increase history: MidAmerican Energy.
| Date | Utility | Charge | Old | New | Source |
|---|---|---|---|---|---|
| November 1, 2026 | Alliant Energy (Interstate Power and Light)Schedule 400 | Energy adjustment clause (November billing month) | 1.676¢ per kWh | 1.006¢ per kWh | Source |
| October 1, 2026 | Alliant Energy (Interstate Power and Light)Schedule 400 | Energy adjustment clause (October billing month) | 1.616¢ per kWh | 1.676¢ per kWh | Source |
| August 28, 2026 | MidAmerican EnergySchedule RS | Energy adjustment clause | 0.802¢ per kWh | 1.527¢ per kWh | Source |
| July 1, 2026 | MidAmerican EnergySchedule RS | Energy efficiency charge | 0.127¢ per kWh | 0.115¢ per kWh | Source |
| July 1, 2026 | MidAmerican EnergySchedule RS | Demand response charge | 0.035¢ per kWh | 0.069¢ per kWh | Source |
| June 2, 2026 | MidAmerican EnergySchedule RS | Transmission cost adjustment | 0.394¢ per kWh | 0.356¢ per kWh | Source |
| May 1, 2026 | MidAmerican EnergySchedule RS | Tax expense revision mechanism | −0.081¢ per kWh | −0.292¢ per kWh | Source |
| May 1, 2026 | MidAmerican EnergySchedule RS | Transmission cost adjustment | 0.335¢ per kWh | 0.394¢ per kWh | Source |
Pages for each Iowa utility
| Utility | Pages |
|---|---|
| Alliant Energy (Interstate Power and Light) | Rates and bill calculator |
| MidAmerican Energy | Rates and bill calculator · Rate history since 2026 |
How electricity prices work in Iowa
- Your address decides your utility. The tariff of that utility gives the price of each kWh and the monthly charges.
- Tiers. MidAmerican Energy charges a different price for the kWh above a limit, so a month with more kWh has a different average price.
- Not in the calculations. Sales tax, city fees and discount programs are not in the tables on this page. The calculator of each utility shows them where the tariff gives them.
What is the average electric bill in Iowa?
In 2025, the average home in Iowa used 861 kWh a month and paid $117.30 a month, 13.6¢ per kWh, from the EIA-861 data of the U.S. Energy Information Administration. The U.S. average was $150.68 (874 kWh, 17.2¢ per kWh). Your own bill depends on your utility and your kWh.
How much is a 1,000 kWh electric bill in Iowa?
In November 2026, 1,000 kWh costs from $106.69 on MidAmerican Energy to $175.33 on Alliant Energy (Interstate Power and Light) (2 utilities with a complete bill), before sales tax. That is 10.7¢ to 17.5¢ per kWh with all the charges of the tariff. The bill is for a 30-day billing period at the standard residential rate of each utility.
Which Iowa utility has the lowest electric rates?
Of the 2 utilities in the table, MidAmerican Energy has the lowest bill for 1,000 kWh in November 2026 ($106.69). You cannot select your utility: it is the utility that serves your address. The order can change with the season and with your kWh.
Are electric rates going up in Iowa?
In the last 12 months, we recorded 8 rate changes for the Iowa tariffs on this site: 4 increases and 4 decreases. The most recent: Alliant Energy (Interstate Power and Light) changed the energy adjustment clause on November 1, 2026.
Why is my electric bill higher in some months in Iowa?
Many tariffs have seasonal rates or charges that change each month. With the same 1,000 kWh, the MidAmerican Energy bill is $132.00 in June and $106.69 in January. Homes also use more kWh for heating and cooling, which adds to the bill. The table of each month on this page shows the difference for each utility.
Who sets electric rates in Iowa?
The Iowa Utilities Commission approves the rates of Alliant Energy (Interstate Power and Light) and MidAmerican Energy. Each calculator on this site uses the approved tariff of the utility.
This list shows only the utilities with checked tariffs. Some homes in Iowa get electricity from an electric cooperative or a city utility. We do not have these tariffs yet. Send the name of your utility to contactus@utilityratecalc.com.
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No account needed: Iowa rate changes (RSS feed) · all rate changes (RSS feed) · a monthly reminder for your calendar · save your bills in this browser. Each month, the bill comparison shows what 1,000 kWh costs at every utility.
State regulator: Iowa Utilities Commission.