Electricity Rates Comparison
Data from U.S. Energy Information Administration (EIA) · November 2025
| Metric | Montana | South Dakota | National Avg |
|---|---|---|---|
| Residential Rate (¢/kWh) | 12.82¢ | 13.81¢ | 17.24¢ |
| Commercial Rate (¢/kWh) | 11.62¢ | 10.43¢ | — |
| Industrial Rate (¢/kWh) | 6.34¢ | 8.45¢ | — |
| Avg Monthly Bill | $109.25 | $137.24 | $152.02 |
| Avg Monthly Usage (kWh) | 852 | 994 | — |
| Market Type | deregulated | regulated | — |
Montana has a lower residential electricity rate at 12.82¢/kWh compared to South Dakota's 13.81¢/kWh — a difference of 0.99¢/kWh (7.2%).
The average monthly electric bill in Montana is $109.25 (852 kWh/month), while in South Dakota it is $137.24 (994 kWh/month). The national average is $152.02.
Montana has a deregulated electricity market, while South Dakota has a regulated market. In deregulated markets, consumers can choose their electricity supplier, which may offer more competitive rates.
The national average residential rate is 17.24¢/kWh. Montana is below the national average at 12.82¢/kWh, and South Dakota is below the national average at 13.81¢/kWh.
Understanding Black Hills Energy rates in South Dakota.
Compare Montana's two major utilities and find savings opportunities.
Understanding electricity rates in the Dakotas, where rural cooperatives and low costs prevail.
Understanding electricity rates in the northern Rocky Mountain states.