Electricity cost in Idaho
Short answer
Electricity in Idaho averages about 10.5¢/kWh. At that rate, running central AC costs about $67/month — below the U.S. average of 16.8¢.
Avg rate
10.5¢/kWh
| Appliance | Cost / month in Idaho |
|---|---|
| Central air conditioner | $67 |
| Electric water heater | $38 |
| Refrigerator | $4 |
| Space heater | $24 |
| Electric clothes dryer | $10 |
| EV charger (Level 2) | $69 |
Any appliance
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Frequently asked questions
What is the average electricity rate in Idaho?
About 10.5¢/kWh for residential customers — versus the U.S. average of 16.8¢. Your exact rate depends on your utility and plan.
How much does an electric water heater cost to run in Idaho?
About $38 per month at Idaho's 10.5¢/kWh rate, assuming typical use. Heat-pump water heaters cost far less.
How much does a space heater cost to run in Idaho?
Around $24 per month if run ~5 hours a day at 10.5¢/kWh. Space heaters are cheap to buy but expensive to run.