States › Wisconsin › Washington County
Electric utilities serving Washington County, Wisconsin
Utilities that list the county in their Form EIA-861 service territory for 2024, with each one's average price, bill and outage minutes.
3 utilities list Washington County, Wisconsin, in the service territory they reported to EIA for 2024, the largest by residential customers statewide being Wisconsin Electric Power Co, Hartford Electric and Slinger Utilities.
Their average residential prices ran from 11.71¢ to 19.23¢ per kilowatthour, with a median of 12.07¢, against a Wisconsin average of 17.18¢ and a US average of 16.48¢. Each price is the utility's figure for all of its Wisconsin customers, not for this county alone.
The median SAIDI they reported was 2.3 minutes per customer including major event days; the median among all Wisconsin utilities reporting was 51.0.
The Census Bureau estimates the county's population at 139,238. 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 Wisconsin 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 |
|---|---|---|---|---|---|---|
| Wisconsin Electric Power Co | Investor-owned | 1,048,148 | 19.23¢ | $120.21 | 296.0 | 109.0 |
| Hartford Electric | Municipal | 6,998 | 11.71¢ | $72.31 | 2.3 | 0.0 |
| Slinger Utilities | Municipal | 2,586 | 12.07¢ | $80.74 | 0.3 | 0.0 |
Ordered by residential customers in Wisconsin. Short-form filers are small utilities that report only totals to EIA, so no residential price is available. 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 Washington County | Wisconsin | United States |
|---|---|---|---|
| Average residential price per kWh | 12.07¢ median | 17.18¢ | 16.48¢ |
| Average monthly residential bill | $80.74 median | $110.87 | $142.26 |
| SAIDI, all events (minutes) | 2.3 median | 51.0 median | 184.5 median |
| SAIDI, without major event days | 0.0 median | 32.8 median | 99.8 median |
| Utilities counted | 3 | 66 | 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 Washington County itself.
Population: 139,238 (U.S. Census Bureau, Vintage 2025 estimate). Statewide, residential sales came to 3,686 kWh per resident in 2024.
Other Wisconsin counties
- Taylor County 7
- Trempealeau County 7
- Vernon County 8
- Vilas County 6
- Walworth County 4
- Washburn County 7
- Waukesha County 2
- Waupaca County 7
- Waushara County 5
- Winnebago County 4
- Wood County 7
All 72 counties and every Wisconsin utility
Questions and answers
Who provides electricity in Washington County?
Wisconsin Electric Power Co, Hartford Electric and Slinger Utilities 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 Washington County?
EIA has no county-level prices. The utilities serving the county reported average residential prices of 11.71¢ to 19.23¢ per kilowatthour across their Wisconsin customers in 2024; the state average was 17.18¢.
How reliable is power in Washington County?
Reliability is reported per utility, not per county. The utilities listed reported a median of 2.3 minutes of interruption per customer in 2024 including major event days and 0.0 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.