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Datacenter Sites in Jefferson County, Kentucky

Jefferson County has 180 scored datacenter candidate sites averaging 60.7/100 DC Readiness, with a catalogued aggregate of 5,013 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

Jefferson County, Kentucky has 180 scored datacenter candidate sites averaging 60.7/100 DC Readiness, about 17% above the Kentucky average of 51.8. It ranks 10th of 117 Kentucky counties by number of sites and 4th by average score. The top-scoring site is MIDDLETOWN 345 KV at 70.0/100.

180
Candidate sites
60.7/100
Avg DC Readiness
5,013 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Jefferson County

Site-selection context for Jefferson County

Yessales_tax_exemption
Datacenter tax incentive
11.09¢/kWh
Commercial electricity
7.65¢/kWh
Industrial electricity
10
Fiber providers
Low
Water stress
$13,280
Land price / acre
1,300
Cooling degree days
4,300
Heating degree days
56°F
Mean annual temp

Incentive detail: Sales tax exemption on electricity for large industrial users; KBI tax credits.

How does Jefferson County compare with other counties in Kentucky?

By number of scored sites, Jefferson County ranks 10th of the 117 Kentucky counties with a county page, holding 2.3% of the state's 7,741 sites. Its average DC Readiness of 60.7/100 ranks 4th in the state and is about 15% above the national average of 53.0. Nationally it has the 125th-largest site inventory of 2,964 counties with five or more sites. One site scores 70 or higher and 180 score 55 or higher.

What types of datacenter sites are in Jefferson County?

Industrial sites are the most common (76, 42% of the county's inventory), followed by substation-adjacent (58) and greenfield (27). 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 Jefferson County?

Industrial electricity averages 7.65¢/kWh and commercial 11.09¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (30). WRI water stress is low. 10 fiber providers report service in the county. The climate runs 1,300 cooling degree days a year with a mean temperature of 56°F. Land is valued around $13,280 an acre.

By site type

Top datacenter sites in Jefferson County

Top datacenter sites in Jefferson County
SiteTypeVoltageCapacityQueue waitScore
MIDDLETOWN 345 KVSubstation-Adjacent345 kV600 MW3.9 yrs70.0
EC Near ZornGreenfield——3.9 yrs67.6
OZ JeffersonGreenfield——3.9 yrs67.2
OZ JeffersonGreenfield——3.9 yrs66.8
EC Near ZornGreenfield——3.9 yrs66.7
EC Near Cane RunGreenfield——3.9 yrs66.6
EC Coal Jefferson CountyGreenfield——3.9 yrs66.6
EC Coal Jefferson CountyGreenfield——3.9 yrs66.3
EC Near Mill Creek (KY)Greenfield——3.9 yrs65.7
EC Coal Jefferson CountyGreenfield——3.9 yrs65.7
UNKNOWN130745Substation-Adjacent138 kV100 MW3.9 yrs65.4
TAP139019Substation-Adjacent138 kV100 MW3.9 yrs65.3
TAP155641Substation-Adjacent138 kV100 MW3.9 yrs65.3
UNKNOWN130746Substation-Adjacent138 kV100 MW3.9 yrs65.3
UNKNOWN130741Substation-Adjacent138 kV100 MW3.9 yrs65.3
BEARGRASSSubstation-Adjacent138 kV100 MW3.9 yrs65.2
UNKNOWN130955Substation-Adjacent138 kV100 MW3.9 yrs65.2
EC Near Mill Creek (KY)Greenfield——3.9 yrs64.9
TAP155989Substation-Adjacent138 kV100 MW3.9 yrs64.2
UNKNOWN130661Substation-Adjacent138 kV100 MW3.9 yrs64.1
UNKNOWN130344Substation-Adjacent138 kV100 MW3.9 yrs64.1
UNKNOWN130333Substation-Adjacent138 kV100 MW3.9 yrs64.1
RISER160448Substation-Adjacent138 kV100 MW3.9 yrs64.0
FERN VALLEYSubstation-Adjacent138 kV100 MW3.9 yrs64.0
TAP160452Substation-Adjacent138 kV100 MW3.9 yrs64.0

Every scored site in Jefferson County

All 180 sites, best first.

Jefferson County datacenter FAQ

How many datacenter sites are in Jefferson County?

180 scored datacenter candidate sites, averaging 60.7/100 DC Readiness. That is the 10th-most of 117 Kentucky counties with five or more sites.

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

MIDDLETOWN 345 KV scores 70.0/100 DC Readiness, the highest of the 180 scored sites in Jefferson County (a substation-adjacent site).

Does Jefferson County offer datacenter tax incentives?

Sales tax exemption on electricity for large industrial users; KBI tax credits.

What is the natural-hazard risk in Jefferson County?

FEMA's National Risk Index rates Jefferson County as "Relatively Moderate" (score 30).

What are industrial electricity rates in Jefferson County?

Average industrial electricity is 7.65¢/kWh and commercial is 11.09¢/kWh in Jefferson County.

More in Kentucky

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 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Datacenter candidate sites in Jefferson County, Kentucky”, https://gridcensus.com/datacenter-sites/kentucky/jefferson-county (data as of November 13, 2026).

Dataset updated . Screening estimates derived from public data sources.

Go deeper than the public screen

Every site and score for Jefferson County, Kentucky 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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