Williamson County, Texas: Power, Data Centers and the Local Economy
Home to Round Rock, Georgetown and Leander
Williamson County is one of the places the data center build-out is physically happening. Electrical contractors employ 3,305, up 97.7% since 2019 against up 24.0% statewide, at an average $79,097 a year. Construction employs 22,608, up 55.0% since 2019, and construction is 1.8 times as concentrated here as in the U.S. economy. The SAVRN Data Center Map lists 6 data centers in Williamson County. Employers here counted 238,420 jobs in 2025, up 31.3% from 2019. Williamson County is home to Round Rock, Georgetown, most of Leander (78,611 of its 91,132 residents) and most of Cedar Park (72,327 of its 79,032 residents).
Cities and towns in Williamson County
Williamson County is home to Round Rock, Georgetown, most of Leander (78,611 of its 91,132 residents) and most of Cedar Park (72,327 of its 79,032 residents).
- Round Rock also extends into Travis County.
- Leander also extends into Travis County.
- Cedar Park also extends into Travis County.
- Austin also extends into Travis County.
- Bartlett also extends into Bell County.
- Pflugerville also extends into Travis County.
Unincorporated communities (governed by the county): Brushy Creek, Santa Rita Ranch, Serenada, Sonterra.
Residents are 2025 Census estimates for the part of each city, town or township inside this county. Census publishes no annual estimate for unincorporated communities.
What changed in Williamson County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Texas |
|---|---|---|---|---|
| Population (2020 → 2025) | 615,611 | 752,827 | ▲ 22.3% | 12th of 254 by size |
| Total jobs (2019 → 2025) | 181,546 | 238,420 | ▲ 31.3% | 19th of 254 by growth |
| Average annual pay (2019 → 2025) | $61,857 | $82,562 | ▲ 33.5% | — |
| Construction jobs (2019 → 2025) | 14,588 | 22,608 | ▲ 55.0% | 27th of 155 by growth |
| Electrical contractor jobs (2019 → 2025) | 1,672 | 3,305 | ▲ 97.7% | — |
| Electric utility jobs (2019 → 2025) | 904 | 1,241 | ▲ 37.3% | — |
| Data processing and hosting jobs (2019 → 2025) | 289 | 259 | ▼ 10.4% | — |
| Unemployment rate (2019 → August 2026) | 2.9% | 4.0% | ▲ 1.1pts | — |
| Generating capacity added since 2019 | — | 211 MW | — | |
| Generating capacity retired since 2019 | — | 0 MW | — |
2 projects are on the Delay Watchlist, including Blueprint Data Centers Taylor Facility. 752,827 people live here, up 22.3% since 2020. 211 MW of that came online in 2019 or later, mostly battery storage. Unemployment was 4.0% in August 2026, against 2.9% in 2019. Its power plants have 214 MW of capacity, 98% of it battery storage. Oncor Electric Delivery Company LLC is the largest utility serving Williamson County, one of 7 with territory here. It delivers power that customers buy from competing retail providers.
Who powers Williamson County
Net change in operating capacity since 2019: +211 MW. Colors follow the fuel legend above.
Utilities with service territory in Williamson County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | — | Delivery only (retail choice) | 3,477,215 | — | — |
| Austin Energy | Municipal | Bundled | 507,291 | 12.58¢ | 42% |
| Pedernales Electric Coop, Inc | Cooperative | Bundled | 405,587 | 12.22¢ | 22% |
| Bluebonnet Electric Coop, Inc | Cooperative | Bundled | 113,890 | 11.42¢ | 42% |
| City of Georgetown - (TX) | Municipal | Bundled | 29,904 | 13.87¢ | 44% |
| Bartlett Electric Coop, Inc | Cooperative | Bundled | 11,527 | 16.09¢ | 24% |
| City of Bartlett - (TX) | — | — | — | — | — |
Customer counts, prices and sales shares cover each utility's whole system in the state, not only this county. Commercial sales include data centers.
Operating power plants 7
| Technology | Capacity | Share |
|---|---|---|
| Battery storage | 210 MW | 98% |
| Natural gas | 3 MW | 1% |
| Solar | 1 MW | 1% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| North Fork TX | Engie North America | Battery storage | 100 MW | 2021 |
| TX19 River Valley Storage 1 | Key Capture Energy | Battery storage | 50 MW | 2023 |
| TX21 River Valley Storage 2 | Key Capture Energy | Battery storage | 50 MW | 2023 |
| Rabbit Hill Energy Storage Project | Rabbit Hill Energy Storage Project | Battery storage | 10 MW | 2020 |
| HEB00591 | Texas Microgrid, LLC | Natural gas | 2 MW | 2018 |
| IKEA Round Rock 027 | IKEA Property Inc | Solar | 1 MW | 2012 |
The Williamson County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 238,420 | $82,562 | 1.00 |
| Construction | 22,608 | $82,881 | 1.79 |
| Electrical contractors | 3,305 | $79,097 | 1.92 |
| Electric utilities | 1,241 | $162,829 | 1.92 |
| Data processing and hosting | 259 | $157,733 | 0.35 |
Concentration is the BLS location quotient: 1.0 means the industry holds the same share of local jobs as it does nationally. Industry rows count private employers; cells BLS suppresses are left out.
Data centers and local rules in Williamson County
6 data centers in Williamson County are on the SAVRN Data Center Map.
Delay Watchlist 2
| Project | Status | Cause | MW | |
|---|---|---|---|---|
| Blueprint Data Centers Taylor Facility | litigation active | — | ||
| Taylor Technology Campus (formerly Project Mustang) | pending review | — |
Williamson County and its neighbors
Of the 6 counties that border Williamson County, Bell County carries the most build-out activity: data centers, planned generation and operating plants combined.
| County | Population | Jobs since 2019 | Operating MW | Planned MW | Data centers | Local measures |
|---|---|---|---|---|---|---|
| Williamson County | 752,827 | ▲ 31.3% | 214 MW | — | 6 | — |
| Bastrop County | 118,908 | ▲ 25.0% | 2,051 MW | 80 MW | 2 | — |
| Bell County | 402,248 | ▲ 8.1% | 2,817 MW | 903 MW | 4 | 1 |
| Burnet County | 57,015 | ▲ 14.9% | 109 MW | 289 MW | — | — |
| Lee County | 18,729 | ▲ 0.5% | — | 1,290 MW | — | — |
| Milam County | 26,258 | ▲ 17.8% | 990 MW | 1,364 MW | 1 | 1 |
| Travis County | 1,389,670 | ▲ 19.9% | 1,624 MW | 2 MW | 25 | — |
More of Texas
Williamson County, answered from the record
Who provides electricity in Williamson County, Texas?
7 utilities have service territory in Williamson County in the EIA-861 2024 report: Oncor Electric Delivery Company LLC, Austin Energy, Pedernales Electric Coop, Inc, Bluebonnet Electric Coop, Inc.
What county is Round Rock, TX in?
Round Rock is in Williamson County, Texas. About 139,317 people live there (2025 Census estimate).
What county is Georgetown, TX in?
Georgetown is in Williamson County, Texas. About 106,907 people live there (2025 Census estimate).
What county is Leander, TX in?
Most of Leander is in Williamson County: 78,611 of its 91,132 residents, or 86%. The rest of the city lies in Travis County.
What power plants are in Williamson County?
7 operating plants with 214 MW of capacity. The largest is North Fork TX (100 MW, battery storage).
Are there data centers in Williamson County?
Yes. The SAVRN Data Center Map lists 6 data centers in Williamson County.
Is Williamson County adding jobs?
Employers counted 238,420 jobs in 2025 against 181,546 in 2019 (+31.3%, BLS QCEW). Construction went from 14,588 to 22,608.
Does Williamson County have a data center moratorium?
No county-level measure is on record for Williamson County. Texas has 25 local measures statewide, listed on the state page.