Montana electricity prices - 15.14¢/kWh (June 2026)
Residential price, average bill, and the data-center story
- Residential electricity in Montana costs 15.14¢/kWh as of - +2.2% year over year, per U.S. Energy Information Administration data.
- The average Montana home used 677 kWh that month and paid an average bill of $102.44 (+2.0% vs a year earlier).
- Montana has the 36th-highest residential electricity price of the 50 states and DC - 17% below the U.S. average of 18.34¢/kWh.
Price by sector
| Sector | ¢/kWh (June 2026) | 1-yr change |
|---|---|---|
| Residential | 15.14¢ | +2.2% |
| Commercial | 13.48¢ | +2.4% |
| Industrial | 6.68¢ | −10.9% |
Water
Electricity delivered in Montana carries 23.01 liters of water per kilowatt-hour consumed at the power plants supplying it (0.93 L/kWh excluding hydropower reservoir evaporation), against a national average of 4.28. That is above the national figure, and it is a property of the grid here rather than of any one building: a data center drawing 100 GWh a year in Montana accounts for about 607.9 million gallons of power-plant water before it cools anything. All states ranked →
A data center's water use is roughly twelve times larger once the water evaporated at its power plants is counted. The Colorado River arithmetic → · how the water numbers work →
All states ranked → · Download Montana data (CSV) · Glossary