States › Wyoming › Johnson County
Electric utilities serving Johnson County, Wyoming
Utilities that list the county in their Form EIA-861 service territory for 2024, with each one's average price, bill and outage minutes.
Johnson County, Wyoming, appears in the Form EIA-861 service territory of 5 utilities for 2024; PacifiCorp, Powder River Energy Corp and Montana-Dakota Utilities Co are the largest by residential customers statewide.
Their average residential prices ran from 11.73¢ to 13.71¢ per kilowatthour, with a median of 12.61¢, against a Wyoming average of 12.47¢ and a US average of 16.48¢. Each price is the utility's figure for all of its Wyoming customers, not for this county alone.
The median SAIDI they reported was 209.4 minutes per customer including major event days; the median among all Wyoming utilities reporting was 92.1.
The Census Bureau estimates the county's population at 8,908. EIA does not publish customers by county, so which utility serves a given address has to be confirmed with the utility or the state utility commission.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Figures are for each utility's whole Wyoming operation; EIA publishes nothing at county level.
Utilities and their 2024 figures
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| PacifiCorp | Investor-owned | 118,130 | 13.44¢ | $99.36 | 92.1 | 92.1 |
| Powder River Energy Corp | Cooperative | 15,406 | 11.73¢ | $133.43 | 496.5 | 295.2 |
| Montana-Dakota Utilities Co | Investor-owned | 14,706 | 11.77¢ | $99.91 | 107.2 | 107.0 |
| High Plains Power Inc | Cooperative | 12,767 | 13.71¢ | $130.41 | 311.5 | 311.5 |
| Big Horn Rural Electric Co short form | Cooperative | 4,078 | — | — | — | — |
Ordered by residential customers in Wyoming. Short-form filers are small utilities that report only totals to EIA, so no residential price is available; their all-sector revenue per kWh was Big Horn Rural Electric Co 13.03¢. A utility with no customers shown reported its retail sales elsewhere or delivers power that other companies bill for.
Against the state and the country
| Measure, 2024 | Utilities listing Johnson County | Wyoming | United States |
|---|---|---|---|
| Average residential price per kWh | 12.61¢ median | 12.47¢ | 16.48¢ |
| Average monthly residential bill | $115.16 median | $107.65 | $142.26 |
| SAIDI, all events (minutes) | 209.4 median | 92.1 median | 184.5 median |
| SAIDI, without major event days | 201.1 median | 62.8 median | 99.8 median |
| Utilities counted | 5 | 12 | 1,413 |
Outage minutes reported
SAIDI for 2024 across each utility's whole system, including major event days (paler bars: only the figure without major event days was reported). Not a measure of outages in Johnson County itself.
Population: 8,908 (U.S. Census Bureau, Vintage 2025 estimate). Statewide, residential sales came to 5,041 kWh per resident in 2024.
Other Wyoming counties
- Carbon County 5
- Converse County 3
- Crook County 4
- Fremont County 4
- Goshen County 7
- Hot Springs County 3
- Laramie County 6
- Lincoln County 4
- Natrona County 3
- Niobrara County 3
- Park County 10
- Platte County 7
All 23 counties and every Wyoming utility
Questions and answers
Who provides electricity in Johnson County?
PacifiCorp, Powder River Energy Corp, Montana-Dakota Utilities Co, High Plains Power Inc and Big Horn Rural Electric Co list the county in their Form EIA-861 service territory for 2024. Territories overlap, and a utility may cover only a corner of the county.
What is the electricity price in Johnson County?
EIA has no county-level prices. The utilities serving the county reported average residential prices of 11.73¢ to 13.71¢ per kilowatthour across their Wyoming customers in 2024; the state average was 12.47¢.
How reliable is power in Johnson County?
Reliability is reported per utility, not per county. The utilities listed reported a median of 209.4 minutes of interruption per customer in 2024 including major event days and 201.1 minutes excluding them.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861 for 2024, final release: service territory file (counties by utility), sales to ultimate customers, reliability and short form files. State and US averages: Form EIA-861M workbook. Population: U.S. Census Bureau. Public domain. To confirm the utility at an address, ask the utility or the state utility commission.