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Yellowstone County, MT Energy

Electric utilities, power plants and charging stations in Yellowstone County, Montana.

Montana home electricity
14.99¢/kWh
July 2026
Regular gas, region
$4.47/gal
Rocky Mountain (PADD 4)
EV charging stations
15
55 ports
Electric utilities
5
Serving Yellowstone County

Electric utilities serving Yellowstone County

As reported to EIA for 2025. A utility may serve only part of the county. Customers and prices are for its whole Montana service area

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UtilityCustomers in stateHome priceHome bill
NorthWestern Energy LLC - (MT)Investor Owned438,85114.42¢/kWh$102/mo
Yellowstone Valley Elec Co-opCooperative23,68314.22¢/kWh$127/mo
Fergus Electric Coop, IncCooperative7,15715.91¢/kWh$143/mo
Mid-Yellowstone Elec Coop, IncCooperative2,053Not reportedNot reported
WAPA-- Western Area Power AdministrationFederal16Not reportedNot reported

EV charging in Yellowstone County

15 public stations, DC fast first

All 15

Alternative fuel stations

FuelStations
Propane (autogas)4

Power plants in Yellowstone County

360 MW of operating capacity

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Electricity rates and gas prices are state or regional averages. Utility service areas come from EIA Form 861 and are listed by county, so a utility listed here may not serve every address in the county.

Frequently asked questions

What electric company serves Yellowstone County?
NorthWestern Energy LLC - (MT), Yellowstone Valley Elec Co-op, Fergus Electric Coop, Inc and 2 more report serving Yellowstone County to EIA. Check your bill or address with the utility to confirm which one serves you.
How many EV charging stations are in Yellowstone County?
There are 15 public EV charging stations in Yellowstone County with 55 ports, 7 of them with DC fast charging.
Are there power plants in Yellowstone County?
Yes. Yellowstone County has 6 operating power plants with 360 MW of capacity. The largest is Yellowstone County Generating Station (207 MW, natural gas).