Montana electricity rates (August 2026)

Average residential and commercial electricity prices in Montana from EIA's monthly utility survey, with the trend, the largest utilities and what power costs a typical homeowner.

Residential rate

15.57¢

▲ 9.0% vs a year agoper kWh, August 2026; ranks 33 of 51 (1 = highest)

Commercial rate

13.64¢

per kWh, August 2026

Average home bill

$115

per month over the last 12 months, about 826 kWh

U.S. residential average

18.16¢

Montana is 14% below the U.S. average.

Find your utility's rate by ZIP

Montana vs U.S. residential rate

Cents per kWh by month, last 36 months.

Last 12 months in Montana

Month	Residential	Commercial	U.S. residential	Avg kWh	Avg bill
August 2026	15.57¢	13.64¢	18.16¢	784	$122
July 2026	14.99¢	13.33¢	18.31¢	889	$133
June 2026	15.14¢	13.48¢	18.34¢	677	$102
May 2026	14.67¢	13.24¢	18.44¢	693	$102
April 2026	13.90¢	12.66¢	18.86¢	784	$109
March 2026	13.47¢	12.42¢	18.60¢	876	$118
February 2026	13.32¢	12.52¢	17.65¢	974	$130
January 2026	12.85¢	11.84¢	17.45¢	1,100	$141
December 2025	12.78¢	11.63¢	17.11¢	991	$127
November 2025	12.82¢	11.68¢	17.77¢	771	$99
October 2025	14.27¢	12.63¢	17.95¢	663	$95
September 2025	14.64¢	12.94¢	18.05¢	708	$104

Largest utilities in Montana

Residential rates for the biggest utilities in Montana that report monthly to EIA, ordered by number of homes served, for August 2026.

Utility	Type	Rate	Avg kWh	Avg bill	Homes
NorthWestern Energy LLC - (MT)	Investor Owned	18.62¢	622	$116	337,936
Flathead Electric Coop Inc	Cooperative	11.23¢	978	$110	65,507
Yellowstone Valley Elec Co-op	Cooperative	14.01¢	1,204	$169	21,780
Montana-Dakota Utilities Co	Investor Owned	14.53¢	1,113	$162	19,604
USBIA-Mission Valley Power	Federal	9.45¢	959	$91	16,587
Missoula Electric Coop, Inc	Cooperative	12.43¢	890	$111	15,431
Powder River Energy Corp	Cooperative	13.22¢	875	$116	51
McKenzie Electric Coop Inc	Cooperative	10.22¢	1,040	$106	25
Black Hills Power, Inc.	Investor Owned	6.90¢	903	$62	12
Avista Corp	Investor Owned	8.68¢	972	$84	9

What electricity adds to owning a home in Montana

A typical Montana home is valued at $467,275 (Zillow). With 10% down at this week's 7.24% 30-year rate, principal and interest come to about $2,866 a month. The average electric bill of $115 adds about 4% on top of that, or $1,381 a year. See Montana property tax and closing costs or run the monthly payment.

Bills follow the seasons: in Montana the highest-use month of the last year averaged 1,100 kWh per home and the lowest 663 kWh. Budget for the expensive months, not the average.

Common questions

What is the average electricity rate in Montana?

Homes in Montana paid an average of 15.57 cents per kWh in August 2026, 14% below the U.S. average of 18.16 cents (EIA Form 861M).

How much is the average electric bill in Montana?

Over the last 12 months the average Montana home used about 826 kWh a month and paid about $115 a month.

Have Montana electricity rates gone up?

The residential rate is 9.0% higher than in August 2025, when it was 14.29 cents per kWh.

What do businesses pay for electricity in Montana?

Commercial customers in Montana paid 13.64 cents per kWh in August 2026.

Electricity rates in all statesRanked table and ZIP lookup Montana buying costsProperty tax, transfer tax and closing costs Montana buyer programsDown payment help where you live

Sources: U.S. Energy Information Administration (EIA), Form EIA-861M monthly sales and revenue (state and utility data, latest month August 2026; EIA marks recent months preliminary and may revise them); ZIP-to-utility map: OpenEI, U.S. Electric Utility Companies and Rates: Look-up by Zip Code (2024), CC BY 4.0. Rates are average revenue per kWh (total bill divided by kWh sold), so they include fixed and delivery charges. EIA posts each month about eight weeks after it ends; this page checks for new data every morning.