Energy Calculators

Idaho electric bill calculator

Estimate a monthly electricity bill in Idaho from your usage and the state’s average residential price.

A Idaho household using the state average of 933 kWh a month (2025) would pay about $124.74 a month at the August 2026 average price of 13.37¢/kWh (EIA).

Pre-fills the average price (Aug 2026) and typical use (EIA).

kWh

Average for Idaho: 933 kWh/month (2025, EIA). Your bill shows your actual use.

¢/kWh
Estimated monthly bill
$124.74
Per year
$1,497
Monthly bill at 13.37¢/kWh
Monthly useBill
500 kWh$66.85
750 kWh$100.28
1,000 kWh$133.70
1,500 kWh$200.55
2,000 kWh$267.40

Formula: monthly bill = kWh used × average price per kWh. EIA’s average price already includes fixed monthly charges, spread over all kWh.

Inputs used: use: 933 kWh/month; rate: 13.37¢/kWh; state: Idaho.

These are estimates, not financial advice.

Source: U.S. Energy Information Administration (Aug 2026). About our data

Typical monthly bill
$124.74933 kWh × 13.37¢/kWh
vs U.S. typical bill
−21.4%U.S.: $158.72
Rank (1 = highest bill)
46thof 51

Idaho bills at common usage levels

Monthly useBill at 13.37¢/kWh
500 kWh$66.85
750 kWh$100.28
1,000 kWh$133.70
1,500 kWh$200.55
2,000 kWh$267.40

Average monthly bill over the last 12 months

Idaho average residential electric bill per customer by monthIdaho average bill: $98 in Sep 2025, $137 in Aug 2026. Low $92, high $153.$80$100$120$140$160Nov 2025Feb 2026May 2026Aug 2026
· dollars per customer per month
Show data table
MonthIdaho average bill
Aug 2026$137
Jul 2026$153
Jun 2026$114
May 2026$92
Apr 2026$97
Mar 2026$113
Feb 2026$119
Jan 2026$143
Dec 2025$126
Nov 2025$105
Oct 2025$92
Sep 2025$98

Source: U.S. Energy Information Administration (Aug 2026). About our data

States with similar typical bills

How we calculate

bill = kWh × average price per kWh. Typical use is Idaho’s 2025 residential sales divided by residential customers and 12 months. The monthly chart uses each month’s sales per customer × that month’s price.

See the methodology for details.

Frequently asked questions

What is the average electric bill in Idaho?

About $124.74 a month for a household using the Idaho average of 933 kWh (2025) at the August 2026 price of 13.37¢/kWh. That is −21.4% versus the U.S. figure calculated the same way ($158.72).

When are Idaho electric bills highest?

Over the last 12 months with published data, the average residential bill was highest in July 2026 ($152.61) and lowest in October 2025 ($91.82), based on EIA sales, customers and prices.

Does this include fixed charges and taxes?

EIA’s average price is total residential revenue divided by kWh sold, so fixed customer charges are included, spread over all kWh. Taxes and fees collected on behalf of governments may not be fully included, so actual bills can be somewhat higher.

Data last updated: