Skip to content
Gridcensus

Datacenter Sites in Williamson County, Texas

Williamson County has 78 scored datacenter candidate sites averaging 57.3/100 DC Readiness, with a catalogued aggregate of 4,750 MW. FEMA rates local natural-hazard risk as "Very High". The county has a datacenter tax incentive on record.

At a glance

Williamson County, Texas has 78 scored datacenter candidate sites averaging 57.3/100 DC Readiness, roughly in line with the Texas average of 56.4. It ranks 15th of 234 Texas counties by number of sites and 50th by average score. The top-scoring site is ROUND ROCK NORTHEAST at 67.5/100.

78
Candidate sites
57.3/100
Avg DC Readiness
4,750 MW
Catalogued capacity
theoretical aggregate
Very High
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Williamson County

Site-selection context for Williamson County

Yessales_tax_exemption
Datacenter tax incentive
14.25¢/kWh
Commercial electricity
6.76¢/kWh
Industrial electricity
17
Fiber providers
Medium-High
Water stress
$4,814
Land price / acre
2,600
Cooling degree days
1,800
Heating degree days
65°F
Mean annual temp

Incentive detail: Chapter 313/Chapter 403 property tax abatements; Texas Enterprise Fund; no state income tax.

How does Williamson County compare with other counties in Texas?

By number of scored sites, Williamson County ranks 15th of the 234 Texas counties with a county page, holding 1.1% of the state's 6,839 sites. Its average DC Readiness of 57.3/100 ranks 50th in the state and is roughly in line with the national average of 53.0. Nationally it has the 451st-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 43 score 55 or higher.

What types of datacenter sites are in Williamson County?

Former Mine sites are the most common (37, 47% of the county's inventory), followed by substation-adjacent (35) and greenfield (5). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.

What are power cost, hazard, water and fiber conditions in Williamson County?

Industrial electricity averages 6.76¢/kWh and commercial 14.25¢/kWh. FEMA's National Risk Index rates the county "Very High" (55). WRI water stress is medium-high. 17 fiber providers report service in the county. The climate runs 2,600 cooling degree days a year with a mean temperature of 65°F. Land is valued around $4,814 an acre.

By site type

Top datacenter sites in Williamson County

Top datacenter sites in Williamson County
SiteTypeVoltageCapacityQueue waitScore
ROUND ROCK NORTHEASTSubstation-Adjacent345 kV600 MW3.5 yrs67.5
UNKNOWN301969Substation-Adjacent345 kV600 MW3.5 yrs67.2
UNKNOWN307710Substation-Adjacent345 kV600 MW3.5 yrs67.2
OZ WilliamsonGreenfield——3.5 yrs64.2
NORTHWESTSubstation-Adjacent138 kV100 MW3.5 yrs63.3
TAP305284Substation-Adjacent138 kV100 MW3.5 yrs63.0
ROUND ROCK SOUTHSubstation-Adjacent138 kV100 MW3.5 yrs63.0
ROUND ROCKSubstation-Adjacent138 kV100 MW3.5 yrs62.9
OZ WilliamsonGreenfield——3.5 yrs62.8
EC Coal Williamson CountyGreenfield——3.5 yrs62.8
JOLLYVILLESubstation-Adjacent138 kV100 MW3.5 yrs62.5
KENTSubstation-Adjacent138 kV100 MW3.5 yrs62.3
AVERY RANCHSubstation-Adjacent138 kV100 MW3.5 yrs62.3
BUTTERCUPSubstation-Adjacent138 kV100 MW3.5 yrs62.2
WHITESTONESubstation-Adjacent138 kV100 MW3.5 yrs62.1
BLOCKHOUSESubstation-Adjacent138 kV100 MW3.5 yrs61.8
ROUND ROCK WESTINGHOUSESubstation-Adjacent138 kV100 MW3.5 yrs61.8
CHIEF BRADYSubstation-Adjacent138 kV100 MW3.5 yrs61.7
UNKNOWN310451Substation-Adjacent138 kV100 MW3.5 yrs61.6
LEANDERSubstation-Adjacent138 kV100 MW3.5 yrs61.4
GEORGETOWNSubstation-Adjacent138 kV100 MW3.5 yrs61.3
SEWARD JUNCTIONSubstation-Adjacent138 kV100 MW3.5 yrs61.2
UNKNOWN308683Substation-Adjacent138 kV100 MW3.5 yrs61.2
UNKNOWN306153Substation-Adjacent138 kV100 MW3.5 yrs61.2
NAMELESSSubstation-Adjacent138 kV100 MW3.5 yrs61.2

Every scored site in Williamson County

All 78 sites, best first.

Williamson County datacenter FAQ

How many datacenter sites are in Williamson County?

78 scored datacenter candidate sites, averaging 57.3/100 DC Readiness. That is the 15th-most of 234 Texas counties with five or more sites.

What is the highest-scoring datacenter site in Williamson County?

ROUND ROCK NORTHEAST scores 67.5/100 DC Readiness, the highest of the 78 scored sites in Williamson County (a substation-adjacent site).

Does Williamson County offer datacenter tax incentives?

Chapter 313/Chapter 403 property tax abatements; Texas Enterprise Fund; no state income tax.

What is the natural-hazard risk in Williamson County?

FEMA's National Risk Index rates Williamson County as "Very High" (score 55).

What are industrial electricity rates in Williamson County?

Average industrial electricity is 6.76¢/kWh and commercial is 14.25¢/kWh in Williamson County.

More in Texas

About this data

Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Datacenter candidate sites in Williamson County, Texas”, https://gridcensus.com/datacenter-sites/texas/williamson-county (data as of November 12, 2026).

Dataset updated . Screening estimates derived from public data sources.

Go deeper than the public screen

Every site and score for Williamson County, Texas is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.

See plansTalk to us