Montana electricity rates
- Average bill
- $110.80
- All-in price
- 12.99¢
- Average use
- 852.6 kWh
- Customers
- 565,902
EIA-861 Average Bill, residential, 2025, released October 7, 2026. July 2026 residential price in Table 5.6.A was 14.99¢/kWh. July 2025 was 14.27¢/kWh. Table retrieved October 10, 2026. The table does not state a cause for the change.
Bundled and energy utilities
Utilities with a complete 2025 residential row and at least 10,000 customers. Sorted by the all-in cents per kWh of the primary service row. Delivery-only utilities are in the next section and are not mixed into this ranking.
| Utility | Service | ¢/kWh | Bill | Customers |
|---|---|---|---|---|
| USBIA-Mission Valley Power | Bundled | 9.39¢ | $119.71 | 16,353 |
| Flathead Electric Coop Inc | Bundled | 10.04¢ | $118.87 | 64,334 |
| Missoula Electric Coop, Inc | Bundled | 10.93¢ | $116.71 | 14,867 |
| Montana-Dakota Utilities Co | Bundled | 12.33¢ | $95.31 | 19,626 |
| Yellowstone Valley Elec Co-op | Bundled | 14.22¢ | $126.96 | 21,471 |
| NorthWestern Energy LLC - (MT) | Bundled | 14.42¢ | $101.97 | 333,711 |
Lowest in this list: USBIA-Mission Valley Power at 9.39¢/kWh. Highest: NorthWestern Energy LLC - (MT) at 14.42¢/kWh.
Delivery-only utilities
These cents cover delivery charges reported to EIA. In Texas they are the TDU, not the retail plan.
No delivery-only utility in this state meets the data threshold.
EIA state adjustment
Form EIA-861 includes a balancing row for Montana, utility number 99999. The sales file names that row Adjustment 2025. It is not a company, the ownership field is blank, and the service-territory file lists no counties. The bundled figure on that row is 12.45¢/kWh, $127.24 a month, at 1,022.3 kWh, across 55,078 customers. Read the adjustment row.
Other utilities (10)
These utilities stay linked from this page. Most serve fewer than 10,000 residential customers, or the 2025 file is missing a price, a bill, a usage figure, or enough history.