Iowa vs South Dakota electricity prices: 13.72 ¢ against 13.38 ¢ per kWh
24 places apart: Iowa #31, South Dakota #7 of 51, the widest of 31 measures. price change, 2026 to date Iowa +5.0%, South Dakota +10.3%; home solar per 1,000 accounts Iowa 12.5, South Dakota 1.1. Typical bills differ by $17 a month, higher in South Dakota.
Over a year the typical energy bill differs by $202 ($118 a month in Iowa, $134 in South Dakota). Since 2015 the home price rose +18.0% in Iowa and +20.8% in South Dakota: 2.8 points more in South Dakota. Against the U.S. home average Iowa sits at -20.7% and South Dakota at -22.7%.
Where the power in Iowa and South Dakota comes from
Fuels with the widest gaps, Iowa against South Dakota.
| Fuel | Iowa | South Dakota | Gap |
|---|---|---|---|
| Hydro | 1.5% | 19.2% | 17.6 points, higher in South Dakota |
| Coal | 25.6% | 9.3% | 16.4 points, higher in Iowa |
| Gas | 12.2% | 11.2% | 1.1 points, higher in Iowa |
| Solar | 1.7% | 2.0% | 0.3 points, higher in South Dakota |
Iowa against South Dakota: widest gaps
| Measure | Iowa | South Dakota | Gap | Rank (of 51) |
|---|---|---|---|---|
| Hydro share of generation | 1.5% | 19.2% | -17.6 points | #31 / #7 |
| Price change, 2026 to date | +5.0% | +10.3% | -5.3 points | #34 / #13 |
| Home solar per 1,000 accounts | 12.5 | 1.1 | +11 | #27 / #46 |
| Homes on retail supply | 0.0% | 0.0% | +0.0 points | #24 / #43 |
| Industry price 2025, ¢/kWh | 7.20 | 8.68 | -1.48 ¢ | #41 / #23 |
| Coal share of generation | 25.6% | 9.3% | +16.4 points | #13 / #28 |
| Price change 2024 to 2025 | +2.4% | +4.0% | -1.7 points | #45 / #32 |
| Bill as share of income | 1.93% | 2.23% | -0.3 points | #37 / #24 |
| Nuclear share of generation | 0.0% | 0.0% | +0.0 points | #34 / #47 |
| CO2 per MWh of generation, lb | 630 | 334 | +296 | #34 / #46 |
31 measures compared for Iowa and South Dakota; the CSV holds the 10 widest.
CSVIowa and South Dakota on the map
Iowa and South Dakota: price over time
Home price, Iowa and South Dakota, 2010 to 2025: 16 rows
| Year | Iowa | South Dakota | Gap to U.S. |
|---|---|---|---|
| 2010 | 10.42 | 8.97 | -1.12 |
| 2011 | 10.46 | 9.35 | -1.26 |
| 2012 | 10.82 | 10.07 | -1.06 |
| 2013 | 11.04 | 10.26 | -1.09 |
| 2014 | 11.16 | 10.47 | -1.36 |
| 2015 | 11.63 | 11.08 | -1.02 |
| 2016 | 11.94 | 11.47 | -0.61 |
| 2017 | 12.34 | 11.77 | -0.55 |
| 2018 | 12.24 | 11.59 | -0.63 |
| 2019 | 12.46 | 11.55 | -0.55 |
| 2020 | 12.46 | 11.75 | -0.69 |
| 2021 | 12.73 | 12.22 | -0.93 |
| 2022 | 13.15 | 12.09 | -1.89 |
| 2023 | 13.31 | 12.32 | -2.69 |
| 2024 | 13.40 | 12.86 | -3.08 |
| 2025 | 13.72 | 13.38 | -3.58 |
Iowa 10.42 to 13.72 ¢ and South Dakota 8.97 to 13.38 ¢ between 2010 and 2025 (EIA).
CSVYour bill in Iowa and in South Dakota
Where Iowa and South Dakota are alike
- Business price 2025, ¢/kWh: 11.05 and 10.89
- Major-event outage minutes: 115 and 136
- Heat pump saving on gas: -24% and -30%
- Heat pump break-even COP: 3.73 and 3.91
- Home price 2025, ¢/kWh: 13.72 and 13.38
Sources and dates: data sources.
Questions
Is Iowa or South Dakota higher on hydro share of generation?
South Dakota, by 17.6 points; they rank #31 and #7 of 51.
Is Iowa or South Dakota higher on price change?
South Dakota, by 5.3 points; they rank #34 and #13 of 49.
Is Iowa or South Dakota higher on home solar per 1?
Iowa, by 11; they rank #27 and #46 of 50.
Is Iowa or South Dakota higher on homes on retail supply?
South Dakota, by 0.0 points; they rank #24 and #43 of 51.
Is Iowa or South Dakota higher on industry price 2025?
South Dakota, by 1.48 ¢; they rank #41 and #23 of 51.
What would 878 kWh a month cost in Iowa and in South Dakota?
Iowa $120, South Dakota $117: $3 apart, energy only.
Where do Iowa and South Dakota match most closely?
business price 2025, ¢/kWh (11.05 and 10.89); major-event outage minutes (115 and 136); heat pump saving on gas (-24% and -30%).