Montana Electricity Rates and Prices

EIA data through July 2026 · updated with Edition 2 of Electricity Prices by State

In July 2026 the average residential electricity price in Montana was 14.99 cents per kilowatt-hour (kWh), up 5.0% from July 2025. That is the 14th lowest of the 50 states and the District of Columbia, 3.32 cents below the U.S. average of 18.31 cents. Commercial and industrial prices, same month: commercial customers 13.33 cents (up 3.9%) and industrial customers 7.71 cents (unchanged).

How Montana compares

Over the 12 months to July 2026, residential customers in Montana paid 102.4% more per kWh than industrial customers, the 11th widest gap of 51. For comparison, the national figure is 102.6% and the median jurisdiction 85.0%.

Over the 12 months to July 2026, commercial customers in Montana paid 82.8% more per kWh than industrial customers, the 5th widest gap of 51. For comparison, the national figure is 55.3% and the median jurisdiction 33.6%. Montana is one of the jurisdictions above the national figure.

Since the June 2026 edition

The residential gap widened from 101.6% to 102.4%, and Montana stayed the 11th widest.

The commercial gap widened from 82.1% to 82.8%, and Montana stayed the 5th widest.

Montana and its neighbors

Electricity prices in Montana over time

Each year is the simple mean of its monthly prices. EIA's own annual average weights each month by sales, so it can differ slightly.

Method and sources

Prices are average retail prices from the U.S. Energy Information Administration's monthly survey of electricity sales (EIA-861M): each customer class's revenue divided by its sales, in cents per kilowatt-hour. They are averages across every customer in the class, not a tariff and not a bill. Year-on-year changes compare the same calendar month, so seasonality cancels. The rate-class gaps compare 12-month average prices for the same reason. EIA revises recent months, and revisions are carried into the next edition. Every figure matches Edition 2 of Electricity Prices by State, and this page updates with each new edition.