Kilowatt Atlas

Electric companies

Electric Companies in Montana: Every Utility and Its Rates

Every electric utility and supplier that reports residential customers in Montana, with its type, size and average price.

Reviewed Data: EIA Form EIA-861, released October 7, 2026

Utilities listed

14

Montana, 2025

Homes counted

566 thousand

Residential customers

Average price

12.99 cents

Per kWh, Montana

Average bill

$110.80

Per month

Utilities serving Montana homes

Electric utilities in Montana by residential customers, 2025
UtilityTypeHomes in MTCents per kWhMonthly bill
NorthWestern EnergyInvestor-owned333,71314.42$101.97
Flathead Electric CooperativeCooperative64,33410.04$118.87
Yellowstone Valley Electric Co-opCooperative21,47114.22$126.96
Montana-Dakota UtilitiesInvestor-owned19,62611.47$94.38
USBIA-Mission Valley PowerFederal16,3539.39$119.71
Missoula Electric CooperativeCooperative14,86710.93$116.72
Fergus Electric CooperativeCooperative6,85515.91$142.55
Northern LightsCooperative4,70012.32$132.15
Lower Yellowstone R E ACooperative3,2479.15$109.52
Fall River Rural Electric CooperativeCooperative1,52511.10$130.85
Powder River EnergyCooperative5112.20$140.97
McKenzie Electric CooperativeCooperative258.03$144.59
Black Hills PowerInvestor-owned1315.07$105.86
AvistaInvestor-owned1013.37$121.82

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Homes in MT counts only the customers in this state. Price and bill cover the utility's whole territory and bundled customers only. Delivery only means the utility carries power but does not sell it.

Who owns Montana's electric companies

Electric utilities in Montana by ownership type
TypeUtilitiesHomes in MTShare of homes
Investor-owned utility4353,36272.6%
Electric cooperative9117,07524.1%
Federal power system116,3533.4%

Each type is run differently. An investor-owned company answers to shareholders and a state commission. A municipal utility answers to a city. A cooperative answers to its members. That is why the same state can have very different prices and service from one address to the next.

What Montana utilities charge, by type

Average residential price by utility type in Montana, 2025
TypeUtilities with a priceAverage cents per kWh
Investor-owned utility413.57
Electric cooperative911.19
Federal power system19.39

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Customer-weighted average of the prices utilities report for bundled residential service. It leaves out delivery-only customers and retail providers.

Outside the investor-owned companies, the largest electric cooperative is Flathead Electric Cooperative (64,334 homes).

Price differences between types come from costs, customer density and the way each type is financed, so a lower average does not decide which is better for your home.

Utilities with full profiles

How Montana compares

The statewide average residential price is 12.99 cents per kWh and the average bill is $110.80 a month. See the full breakdown, rankings and neighbors on the Montana electricity rates page. Among utilities with at least 10,000 bundled residential customers, average prices ran from 9.39 cents at USBIA-Mission Valley Power to 15.07 cents at Black Hills Power.

Can you switch electric companies in Montana?

Most households cannot choose. The company that serves your address is set by where you live. Regulation and complaints go through the Montana Public Service Commission.

Find yours

Not sure which one serves you?

Try find my electric company and pick your county. Kilowatt Atlas is not affiliated with any of these companies.

Montana electric company questions

Who is the largest electric company in Montana?

NorthWestern Energy serves the most residential customers in Montana, about 334 thousand homes in 2025 (EIA Form EIA-861).

How many electric utilities are there in Montana?

EIA lists 14 electric utilities with residential customers in Montana for 2025. Most households are served by a handful of the largest ones.

Which Montana utility has the lowest average price?

Among Montana utilities with at least 10,000 bundled residential customers, USBIA-Mission Valley Power had the lowest average residential price in 2025 at 9.39 cents per kWh and Black Hills Power had the highest at 15.07 cents. Prices reflect the utility's costs and customer mix, so a lower price does not mean better service.

Can I choose my electric company in Montana?

Usually not. Households in Montana buy electricity from the utility, municipal system or cooperative that serves their address.

Related pages