States › Texas › Williamson County
Electric utilities serving Williamson County, Texas
Utilities that list the county in their Form EIA-861 service territory for 2024, with each one's average price, bill and outage minutes.
Williamson County, Texas, appears in the Form EIA-861 service territory of 7 utilities for 2024; Austin Energy, Pedernales Electric Coop, Inc and Bluebonnet Electric Coop, Inc are the largest by residential customers statewide.
Their average residential prices ran from 11.42¢ to 16.09¢ per kilowatthour, with a median of 12.58¢, against a Texas average of 14.94¢ and a US average of 16.48¢. Each price is the utility's figure for all of its Texas customers, not for this county alone.
Oncor Electric Delivery Company LLC lists the county too but reported no residential sales in Texas under its own name: in the competitive part of Texas the distribution company delivers the power while retail electric providers bill the customer, and EIA does not publish those providers' customers by county.
The median SAIDI they reported was 141.5 minutes per customer including major event days; the median among all Texas utilities reporting was 200.2.
The Census Bureau estimates the county's population at 752,827. 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 Texas 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 |
|---|---|---|---|---|---|---|
| Austin Energy | Municipal | 507,291 | 12.58¢ | $104.85 | 92.1 | 76.0 |
| Pedernales Electric Coop, Inc | Cooperative | 405,587 | 12.22¢ | $145.55 | 57.4 | 57.4 |
| Bluebonnet Electric Coop, Inc | Cooperative | 113,890 | 11.42¢ | $137.63 | 227.2 | 117.2 |
| City of Georgetown | Municipal | 29,904 | 13.87¢ | $125.42 | 39.9 | 39.9 |
| Bartlett Electric Coop, Inc | Cooperative | 11,527 | 16.09¢ | $219.37 | 190.9 | 135.9 |
| City of Bartlett short form | Municipal | 686 | — | — | — | — |
| Oncor Electric Delivery Company LLC | Investor-owned | — | — | — | 532.5 | 67.3 |
Ordered by residential customers in Texas. 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 City of Bartlett 14.66¢. 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 Williamson County | Texas | United States |
|---|---|---|---|
| Average residential price per kWh | 12.58¢ median | 14.94¢ | 16.48¢ |
| Average monthly residential bill | $137.63 median | $163.72 | $142.26 |
| SAIDI, all events (minutes) | 141.5 median | 200.2 median | 184.5 median |
| SAIDI, without major event days | 71.7 median | 165.5 median | 99.8 median |
| Utilities counted | 7 | 140 | 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 Williamson County itself.
Population: 752,827 (U.S. Census Bureau, Vintage 2025 estimate). Statewide, residential sales came to 5,205 kWh per resident in 2024.
Other Texas counties
- Webb County 3
- Wharton County 4
- Wheeler County 4
- Wichita County 4
- Wilbarger County 5
- Willacy County 2
- Wilson County 5
- Winkler County 2
- Wise County 6
- Wood County 5
- Yoakum County 3
- Young County 4
All 254 counties and every Texas utility
Questions and answers
Who provides electricity in Williamson County?
Austin Energy, Pedernales Electric Coop, Inc, Bluebonnet Electric Coop, Inc, City of Georgetown, Bartlett Electric Coop, Inc and City of Bartlett and 1 more 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 Williamson County?
EIA has no county-level prices. The utilities serving the county reported average residential prices of 11.42¢ to 16.09¢ per kilowatthour across their Texas customers in 2024; the state average was 14.94¢.
How reliable is power in Williamson County?
Reliability is reported per utility, not per county. The utilities listed reported a median of 141.5 minutes of interruption per customer in 2024 including major event days and 71.7 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.