MidAmerican Energy Co Electricity Rates and Average Bill (Iowa)
Data through June 2026 (the latest month EIA has published) · Updated September 04, 2026
As of June 2026, MidAmerican Energy Co's residential customers in Iowa paid an average effective rate of 13.51¢/kWh with an average monthly bill of $121.13, per EIA Form 861-M data. That rate is 2.4¢ below the Iowa average of 15.93¢/kWh; the U.S. average is 18.34¢/kWh.
Rate trend vs the Iowa average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| July 2025 | 13.01 | 163.30 | 1255 |
| August 2025 | 13.18 | 136.11 | 1033 |
| September 2025 | 12.72 | 94.63 | 744 |
| October 2025 | 9.92 | 70.66 | 712 |
| November 2025 | 10.08 | 55.80 | 553 |
| December 2025 | 9.43 | 84.05 | 891 |
| January 2026 | 10.33 | 107.77 | 1043 |
| February 2026 | 9.25 | 75.41 | 815 |
| March 2026 | 10.23 | 75.16 | 734 |
| April 2026 | 10.78 | 60.13 | 558 |
| May 2026 | 11.45 | 76.29 | 666 |
| June 2026 | 13.51 | 121.13 | 897 |
MidAmerican Energy Co vs Iowa vs the U.S.
| MidAmerican Energy Co | Iowa | U.S. average | |
|---|---|---|---|
| Rate (June 2026) | 13.51¢/kWh | 15.93¢/kWh | 18.34¢/kWh |
| Average monthly bill | $121.13 | $136.46 | $170.65 |
| Average monthly usage | 897 kWh | 856 kWh | 930 kWh |
| Rate change, 1 year | +4.1% | +3.9% | +5.0% |
Estimate a bill at MidAmerican Energy Co rates
Worked example: 1,000 kWh at MidAmerican Energy Co's average effective rate of 13.51¢/kWh is about $135.10. The utility's actual average usage is 897 kWh/month, which produces the $121.13 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full Iowa rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.