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Datacenter Sites in Williamson County, Tennessee

Williamson County has 21 scored datacenter candidate sites averaging 63.6/100 DC Readiness, with a catalogued aggregate of 2,900 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.

At a glance

Williamson County, Tennessee has 21 scored datacenter candidate sites averaging 63.6/100 DC Readiness, about 12% above the Tennessee average of 57.0. It ranks 30th of 87 Tennessee counties by number of sites and 1st by average score. The top-scoring site is DAVIDSON at 71.3/100.

21
Candidate sites
63.6/100
Avg DC Readiness
2,900 MW
Catalogued capacity
theoretical aggregate
Relatively High
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 21 in Williamson County

Site-selection context for Williamson County

Yessales_tax_exemption
Datacenter tax incentive
10.51¢/kWh
Commercial electricity
6.34¢/kWh
Industrial electricity
10
Fiber providers
Low
Water stress
$7,148
Land price / acre
1,600
Cooling degree days
3,600
Heating degree days
58°F
Mean annual temp

Incentive detail: Sales tax exemption on DC equipment for $250M+ investments; no state income tax on wages.

How does Williamson County compare with other counties in Tennessee?

By number of scored sites, Williamson County ranks 30th of the 87 Tennessee counties with a county page, holding 1.0% of the state's 2,190 sites. Its average DC Readiness of 63.6/100 ranks 1st in the state and is about 20% above the national average of 53.0. Nationally it has the 1665th-largest site inventory of 2,964 counties with five or more sites. One site scores 70 or higher and 21 score 55 or higher.

What types of datacenter sites are in Williamson County?

Substation-Adjacent sites are the most common (20, 95% of the county's inventory), followed by former mine (1). 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 6.34¢/kWh and commercial 10.51¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (38). WRI water stress is low. 10 fiber providers report service in the county. The climate runs 1,600 cooling degree days a year with a mean temperature of 58°F. Land is valued around $7,148 an acre.

By site type

Top datacenter sites in Williamson County

Top datacenter sites in Williamson County
SiteTypeVoltageCapacityQueue waitScore
DAVIDSONSubstation-Adjacent500 kV1,000 MW3.9 yrs71.3
FRANKLINSubstation-Adjacent161 kV100 MW3.9 yrs65.2
ASPEN GROVESubstation-Adjacent161 kV100 MW3.9 yrs65.2
TAP153487Substation-Adjacent161 kV100 MW3.9 yrs65.1
TAP155166Substation-Adjacent161 kV100 MW3.9 yrs65.1
EAST COOL SPRINGSSubstation-Adjacent161 kV100 MW3.9 yrs64.9
UNKNOWN115533Substation-Adjacent161 kV100 MW3.9 yrs64.9
TAP153483Substation-Adjacent161 kV100 MW3.9 yrs64.0
GOOSE CREEKSubstation-Adjacent161 kV100 MW3.9 yrs63.8
TAP153490Substation-Adjacent161 kV100 MW3.9 yrs63.7
GRASSLANDSubstation-Adjacent161 kV100 MW3.9 yrs63.6
THOMPSON STATIONSubstation-Adjacent161 kV100 MW3.9 yrs63.5
TAP170614Substation-Adjacent161 kV100 MW3.9 yrs63.4
UNKNOWN170613Substation-Adjacent161 kV100 MW3.9 yrs63.3
TRIUNESubstation-Adjacent161 kV100 MW3.9 yrs63.2
UNKNOWN120041Substation-Adjacent161 kV100 MW3.9 yrs63.0
TAP153485Substation-Adjacent161 kV100 MW3.9 yrs62.6
TAP153059Substation-Adjacent161 kV100 MW3.9 yrs61.4
JINGOSubstation-Adjacent161 kV100 MW3.9 yrs61.3
UNKNOWN170615Substation-Adjacent161 kV100 MW3.9 yrs61.2
Mine SiteFormer Mine——3.9 yrs56.8

Every scored site in Williamson County

All 21 sites, best first.

Williamson County datacenter FAQ

How many datacenter sites are in Williamson County?

21 scored datacenter candidate sites, averaging 63.6/100 DC Readiness. That is the 30th-most of 87 Tennessee counties with five or more sites.

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

DAVIDSON scores 71.3/100 DC Readiness, the highest of the 21 scored sites in Williamson County (a substation-adjacent site).

Does Williamson County offer datacenter tax incentives?

Sales tax exemption on DC equipment for $250M+ investments; no state income tax on wages.

What is the natural-hazard risk in Williamson County?

FEMA's National Risk Index rates Williamson County as "Relatively High" (score 38).

What are industrial electricity rates in Williamson County?

Average industrial electricity is 6.34¢/kWh and commercial is 10.51¢/kWh in Williamson County.

More in Tennessee

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, Tennessee”, https://gridcensus.com/datacenter-sites/tennessee/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, Tennessee 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.

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