Idaho vs South Dakota Electricity Rates (2026)
Idaho has 18.9% cheaper electricity than South Dakota. Idaho residents pay 11.15¢/kWh compared to 13.74¢/kWh in South Dakota, saving about $26.00/month on average.
Idaho
11.15¢
per kWh
$107/mo
South Dakota
13.74¢
per kWh
$133/mo
Detailed Rate Comparison
| Metric | Idaho | South Dakota | National Avg |
|---|---|---|---|
| Residential Rate | 11.15¢/kWh | 13.74¢/kWh | 17.22¢/kWh |
| Commercial Rate | 8.69¢/kWh | 11.52¢/kWh | - |
| Industrial Rate | 6.87¢/kWh | 9.11¢/kWh | - |
| Avg Monthly Bill | $107 | $133 | $134 |
| Renewable Energy | 73.0% | 35.0% | ~22% |
| Primary Source | Hydroelectric | Wind | - |
Appliance Running Costs: Idaho vs South Dakota
Monthly cost to run common household appliances in each state.
| Appliance | ID | SD | Savings |
|---|---|---|---|
| Air Purifier | $4.01 | $4.95 | ID saves $0.93 |
| Blender | $0.13 | $0.16 | ID saves $0.03 |
| CFL Bulb (13W) | $0.35 | $0.43 | ID saves $0.08 |
| Cable / Satellite Box | $2.81 | $3.46 | ID saves $0.65 |
| Ceiling Fan | $3.01 | $3.71 | ID saves $0.70 |
| Central Air Conditioner | $93.66 | $115.42 | ID saves $21.76 |
| Chest Freezer | $6.42 | $7.91 | ID saves $1.49 |
| Clothes Dryer (Electric) | $10.04 | $12.37 | ID saves $2.33 |
| Coffee Maker | $0.75 | $0.93 | ID saves $0.17 |
| Crypto Mining Rig | $120.42 | $148.39 | ID saves $27.97 |
| Dehumidifier | $12.04 | $14.84 | ID saves $2.80 |
| Desktop Computer | $5.35 | $6.60 | ID saves $1.24 |
| Dishwasher | $6.02 | $7.42 | ID saves $1.40 |
| Electric Baseboard Heater | $33.45 | $41.22 | ID saves $7.77 |
| Electric Fireplace | $18.73 | $23.08 | ID saves $4.35 |
Bottom Line: Idaho vs South Dakota
Idaho is the more affordable state for electricity, with rates 18.9% lower than South Dakota. An average household would save about $312.00/year by living in Idaho.
Idaho gets its electricity primarily from Hydroelectric with 73.0% renewable, while South Dakota relies on Wind with 35.0% renewable.
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Frequently Asked Questions
Is electricity cheaper in Idaho or South Dakota?
Electricity is cheaper in Idaho at 11.15¢/kWh compared to South Dakota at 13.74¢/kWh. That's a 18.9% difference, saving about $26.00/month on an average residential bill.
What is the average electricity bill in Idaho vs South Dakota?
The average monthly electricity bill is $107 in Idaho and $133 in South Dakota. The national average is $134.
Which state uses more renewable energy, Idaho or South Dakota?
Idaho has a higher renewable energy percentage at 73.0%, compared to 35.0% in South Dakota.
What are the main energy sources in Idaho and South Dakota?
Idaho primarily uses Hydroelectric, while South Dakota relies on Wind.
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Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)