Montana vs South Dakota Electricity Rates (2026)
Montana has 6.8% cheaper electricity than South Dakota. Montana residents pay 12.81¢/kWh compared to 13.74¢/kWh in South Dakota, saving about $26.00/month on average.
Montana
12.81¢
per kWh
$107/mo
South Dakota
13.74¢
per kWh
$133/mo
Detailed Rate Comparison
| Metric | Montana | South Dakota | National Avg |
|---|---|---|---|
| Residential Rate | 12.81¢/kWh | 13.74¢/kWh | 17.22¢/kWh |
| Commercial Rate | 10.92¢/kWh | 11.52¢/kWh | - |
| Industrial Rate | 6.35¢/kWh | 9.11¢/kWh | - |
| Avg Monthly Bill | $107 | $133 | $134 |
| Renewable Energy | 48.0% | 35.0% | ~22% |
| Primary Source | Hydroelectric | Wind | - |
Appliance Running Costs: Montana vs South Dakota
Monthly cost to run common household appliances in each state.
| Appliance | MT | SD | Savings |
|---|---|---|---|
| Air Purifier | $4.61 | $4.95 | MT saves $0.33 |
| Blender | $0.15 | $0.16 | MT saves $0.01 |
| CFL Bulb (13W) | $0.40 | $0.43 | MT saves $0.03 |
| Cable / Satellite Box | $3.23 | $3.46 | MT saves $0.23 |
| Ceiling Fan | $3.46 | $3.71 | MT saves $0.25 |
| Central Air Conditioner | $107.60 | $115.42 | MT saves $7.81 |
| Chest Freezer | $7.38 | $7.91 | MT saves $0.54 |
| Clothes Dryer (Electric) | $11.53 | $12.37 | MT saves $0.84 |
| Coffee Maker | $0.86 | $0.93 | MT saves $0.06 |
| Crypto Mining Rig | $138.35 | $148.39 | MT saves $10.04 |
| Dehumidifier | $13.83 | $14.84 | MT saves $1.00 |
| Desktop Computer | $6.15 | $6.60 | MT saves $0.45 |
| Dishwasher | $6.92 | $7.42 | MT saves $0.50 |
| Electric Baseboard Heater | $38.43 | $41.22 | MT saves $2.79 |
| Electric Fireplace | $21.52 | $23.08 | MT saves $1.56 |
Bottom Line: Montana vs South Dakota
Montana is the more affordable state for electricity, with rates 6.8% lower than South Dakota. An average household would save about $312.00/year by living in Montana.
Montana gets its electricity primarily from Hydroelectric with 48.0% renewable, while South Dakota relies on Wind with 35.0% renewable.
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Frequently Asked Questions
Is electricity cheaper in Montana or South Dakota?
Electricity is cheaper in Montana at 12.81¢/kWh compared to South Dakota at 13.74¢/kWh. That's a 6.8% difference, saving about $26.00/month on an average residential bill.
What is the average electricity bill in Montana vs South Dakota?
The average monthly electricity bill is $107 in Montana and $133 in South Dakota. The national average is $134.
Which state uses more renewable energy, Montana or South Dakota?
Montana has a higher renewable energy percentage at 48.0%, compared to 35.0% in South Dakota.
What are the main energy sources in Montana and South Dakota?
Montana primarily uses Hydroelectric, while South Dakota relies on Wind.
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)