Electricity rates in Montana: 13.84¢ per kWh
Homes in Montana paid an average of 13.84¢ per kilowatt-hour from August 2025 to July 2026, 23% below the U.S. average of 17.99¢. That is the 10th-lowest of 51, between Kentucky (13.92¢) and Oklahoma (13.70¢).
The average Montana home used 829 kWh a month — the 21st-least of the 51 — so its typical bill came to $115 a month, the 6th-lowest. At the national rate the same 829 kWh would cost $34 more a month.
In July 2026, the latest month published, the Montana rate was 14.99¢.
| Rank | State | Average rate | Latest month | Average home use | Average bill |
|---|---|---|---|---|---|
| 40 | Missouri | 13.95¢ | 16.09¢ | 1,041 kWh/mo | $145/mo |
| 41 | Kentucky | 13.92¢ | 13.81¢ | 1,107 kWh/mo | $154/mo |
| 42 | Montana | 13.84¢ | 14.99¢ | 829 kWh/mo | $115/mo |
| 43 | Oklahoma | 13.70¢ | 14.35¢ | 1,052 kWh/mo | $144/mo |
| 44 | Tennessee | 13.56¢ | 13.71¢ | 1,198 kWh/mo | $162/mo |
What a month of electricity costs in Montana
At 13.84¢ per kWh, every extra 100 kWh a month adds $13.84 to the monthly bill and $166 to the year. The table runs from half to twice the Montana average home's 829 kWh, using the same calculation as the calculator above.
| Monthly use | Per month | Per year | vs. U.S. rate (17.99¢) |
|---|---|---|---|
| 400 kWh (half the average) | $55 | $664 | −$17 |
| 829 kWh (state average) | $115 | $1,377 | −$34 |
| 1,250 kWh (1.5× the average) | $173 | $2,076 | −$52 |
| 1,650 kWh (twice the average) | $228 | $2,740 | −$68 |
Montana electricity through the year
The average Montana home's bill peaked at about $141 in January 2026 and was lowest, about $95, in October 2025. Use ran from 663 kWh in October 2025 to 1,100 kWh in January 2026, 1.7 times as much.
The rate moved too, from 12.77¢ in December 2025 to 15.14¢ in June 2026. A monthly rate includes that month's fuel and seasonal charges, which is why the calculator uses the 12-month average for a yearly estimate.
| Month | Rate | Use per home | Bill per home |
|---|---|---|---|
| Aug 2025 | 14.28¢ | 819 kWh | $117 |
| Sep 2025 | 14.64¢ | 708 kWh | $104 |
| Oct 2025 | 14.27¢ | 663 kWh | $95 |
| Nov 2025 | 12.82¢ | 771 kWh | $99 |
| Dec 2025 | 12.77¢ | 990 kWh | $126 |
| Jan 2026 | 12.86¢ | 1,100 kWh | $141 |
| Feb 2026 | 13.33¢ | 974 kWh | $130 |
| Mar 2026 | 13.48¢ | 876 kWh | $118 |
| Apr 2026 | 13.90¢ | 784 kWh | $109 |
| May 2026 | 14.67¢ | 693 kWh | $102 |
| Jun 2026 | 15.14¢ | 677 kWh | $102 |
| Jul 2026 | 14.99¢ | 889 kWh | $133 |
Largest electricity providers in Montana
Among the 10 largest providers listed, average residential rates in 2024 ran from 8.83¢ at Lower Yellowstone R E A, Inc to 15.52¢ at Fergus Electric Coop, Inc. On the average Montana home's 829 kWh that is a difference of $55 a month.
These are 2024 figures, the latest final year. The Montana average was 12.66¢ that year and 13.84¢ over the last 12 months, up 9% — compare the providers with each other, not with today's average.
Together they serve 86% of Montana's 557,432 residential customers. The rates are each company's residential revenue divided by kilowatt-hours sold, so customer charges are included; a plan or tier can still differ.
| Provider | Type | Homes served | Average rate | Use per home |
|---|---|---|---|---|
| NorthWestern Energy LLC | Investor-owned | 328,125 | 14.23¢ | 711 kWh/mo |
| Flathead Electric Coop Inc | Cooperative | 63,317 | 9.67¢ | 1,202 kWh/mo |
| Yellowstone Valley Elec Co-op | Cooperative | 21,182 | 13.35¢ | 904 kWh/mo |
| Montana-Dakota Utilities Co | Investor-owned | 19,616 | 12.89¢ | 760 kWh/mo |
| USBIA-Mission Valley Power | Public power | 16,292 | 8.91¢ | 1,313 kWh/mo |
| Missoula Electric Coop, Inc | Cooperative | 14,686 | 10.50¢ | 1,076 kWh/mo |
| Fergus Electric Coop, Inc | Cooperative | 6,682 | 15.52¢ | 801 kWh/mo |
| Northern Lights, Inc | Cooperative | 3,985 | 12.52¢ | 1,073 kWh/mo |
| Lower Yellowstone R E A, Inc | Cooperative | 3,499 | 8.83¢ | 1,183 kWh/mo |
| Fall River Rural Elec Coop Inc | Cooperative | 1,508 | 11.39¢ | 1,003 kWh/mo |