Idaho Electricity Utilities & Rates

31 electric utilities serve Idaho · EIA Form 861 2025, with monthly prices through August 2026

Utilities

Customers

1,084,426

Electricity sold

27,770 GWh

Residential rate (2025)

11.83¢

Avg residential bill

$110/mo

Residential price (August 2026)

13.37¢

Average Idaho electricity prices, 2025

Customer class	Avg price	Avg monthly use	Avg monthly bill
Residential	11.83¢	933 kWh	$110.36
Commercial	9.29¢	4,690 kWh	$435.54
Industrial	7.88¢	27,332 kWh	$2,153.44

EIA Form 861 average-bill tables for 2025: total class revenue divided by sales and customers as filed. Prices are average realized rates, blending fixed and variable charges - not any single tariff.

Latest monthly prices (EIA-861M, preliminary)

Period	Residential	Commercial	Industrial	All sectors
August 2026	13.37¢	10.21¢	9.71¢	11.09¢
2026 year-to-date	13.02¢	9.75¢	8.37¢	10.39¢

Electric utilities serving Idaho

Utility	Ownership	Customers in state	Sales (GWh)	Residential rate
Idaho Power Co	Investor Owned	636,949	15,504	11.78¢
Avista Corp	Investor Owned	149,098	3,649	11.84¢
PacifiCorp	Investor Owned	92,536	3,802	13.53¢
Adjustment 2025		40,952	963	11.16¢
City of Idaho Falls - (ID)	Municipal	34,150	779	9.60¢
Kootenai Electric Cooperative	Cooperative	33,826	584	13.44¢
Northern Lights, Inc	Cooperative	19,250	327	12.17¢
Fall River Rural Elec Coop Inc	Cooperative	18,798	350	11.11¢
Clearwater Power Company	Cooperative	10,730	181	—
United Electric Co-op, Inc - (ID)	Cooperative	7,692	361	8.50¢
City of Burley - (ID)	Municipal	5,337	169	—
Idaho County L&P Coop Assn, Inc	Cooperative	4,612	62.8	—
City of Weiser - (ID)	Municipal	3,425	52.1	—
City of Rupert - (ID)	Municipal	3,233	86.6	—
Lost River Electric Coop Inc	Cooperative	3,144	97.6	—
Salmon River Electric Coop Inc	Cooperative	3,038	104	9.87¢
City of Bonners Ferry (ID)	Municipal	2,933	77.6	—
Raft Rural Elec Coop Inc	Cooperative	2,771	269	10.16¢
Inland Power & Light Company	Cooperative	2,335	42.3	9.45¢
Lower Valley Energy Inc	Cooperative	2,068	72.6	7.84¢
City of Soda Springs - (ID)	Municipal	1,886	22.1	—
City of Heyburn - (ID)	Municipal	1,719	62.1	—
City of Plummer - (ID)	Municipal	1,031	20.7	—
South Side Electric, Inc	Cooperative	868	62.5	—
East End Mutual Elec Co Ltd	Cooperative	820	35.7	—
Riverside Electric Cooperative	Cooperative	630	23.8	—
City of Albion - (ID)	Municipal	207	3.3	—
Farmers Electric Company, Ltd - (ID)	Cooperative	154	4.5	—
City of Declo - (ID)	Municipal	139	0.3	—
Missoula Electric Coop, Inc	Cooperative	70	1.5	10.50¢
Vigilante Electric Coop, Inc	Cooperative	25	0.2	—

Cheapest residential electricity in Idaho (2025)

Lower Valley Energy Inc - 7.84¢
United Electric Co-op, Inc - (ID) - 8.50¢
Inland Power & Light Company - 9.45¢
City of Idaho Falls - (ID) - 9.60¢
Salmon River Electric Coop Inc - 9.87¢
Raft Rural Elec Coop Inc - 10.16¢
Fall River Rural Elec Coop Inc - 11.11¢
Adjustment 2025 - 11.16¢
Idaho Power Co - 11.78¢
Avista Corp - 11.84¢

Source: U.S. Energy Information Administration, Forms EIA-861 (2025) and EIA-861M (monthly, preliminary).