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Datacenter Sites in Warren County, Ohio

Warren County has 37 scored datacenter candidate sites averaging 58.4/100 DC Readiness, with a catalogued aggregate of 4,600 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

Warren County, Ohio has 37 scored datacenter candidate sites averaging 58.4/100 DC Readiness, roughly in line with the Ohio average of 53.2. It ranks 32nd of 85 Ohio counties by number of sites and 1st by average score. The top-scoring site is FOSTER at 65.9/100.

37
Candidate sites
58.4/100
Avg DC Readiness
4,600 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Warren County

Site-selection context for Warren County

Yessales_tax_exemption
Datacenter tax incentive
8.08¢/kWh
Commercial electricity
6.05¢/kWh
Industrial electricity
10
Fiber providers
Low
Water stress
$10,500
Land price / acre
900
Cooling degree days
5,400
Heating degree days
51°F
Mean annual temp

Incentive detail: DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.

How does Warren County compare with other counties in Ohio?

By number of scored sites, Warren County ranks 32nd of the 85 Ohio counties with a county page, holding 0.9% of the state's 3,933 sites. Its average DC Readiness of 58.4/100 ranks 1st in the state and is about 10% above the national average of 53.0. Nationally it has the 1044th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 27 score 55 or higher.

What types of datacenter sites are in Warren County?

Substation-Adjacent sites are the most common (23, 62% of the county's inventory), followed by industrial (6) and former mine (4). 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 Warren County?

Industrial electricity averages 6.05¢/kWh and commercial 8.08¢/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 900 cooling degree days a year with a mean temperature of 51°F. Land is valued around $10,500 an acre.

By site type

Top datacenter sites in Warren County

Top datacenter sites in Warren County
SiteTypeVoltageCapacityQueue waitScore
FOSTERSubstation-Adjacent345 kV600 MW5.2 yrs65.9
TAP137572Substation-Adjacent345 kV600 MW5.2 yrs65.9
UNKNOWN113020Substation-Adjacent345 kV600 MW5.2 yrs65.8
UNKNOWN112844Substation-Adjacent345 kV600 MW5.2 yrs65.7
EC Coal Warren CountyGreenfield——5.2 yrs63.1
EC Coal Warren CountyGreenfield——5.2 yrs61.4
RISER137620Substation-Adjacent138 kV100 MW5.2 yrs61.1
TAP137603Substation-Adjacent138 kV100 MW5.2 yrs61.0
TAP137604Substation-Adjacent138 kV100 MW5.2 yrs61.0
Greenfield (PORT UNION SUBSTATION - FOSTER)Greenfield345 kV600 MW5.2 yrs60.5
TAP137599Substation-Adjacent138 kV100 MW5.2 yrs59.9
UNKNOWN112842Substation-Adjacent138 kV100 MW5.2 yrs59.8
UNKNOWN112839Substation-Adjacent138 kV100 MW5.2 yrs59.7
UNKNOWN112841Substation-Adjacent138 kV100 MW5.2 yrs59.6
TAP171502Substation-Adjacent138 kV100 MW5.2 yrs59.6
TAP137618Substation-Adjacent138 kV100 MW5.2 yrs59.6
UNKNOWN112840Substation-Adjacent138 kV100 MW5.2 yrs59.5
TAP161786Substation-Adjacent138 kV100 MW5.2 yrs59.5
UNKNOWN112838Substation-Adjacent138 kV100 MW5.2 yrs59.5
UNKNOWN114727Substation-Adjacent138 kV100 MW5.2 yrs59.1
UNKNOWN112987Substation-Adjacent69 kV50 MW5.2 yrs57.6
UNKNOWN112843Substation-Adjacent69 kV50 MW5.2 yrs57.1
TAP137615Substation-Adjacent69 kV50 MW5.2 yrs57.1
TAP171501Substation-Adjacent69 kV50 MW5.2 yrs57.0
TAP171497Substation-Adjacent69 kV50 MW5.2 yrs57.0

Every scored site in Warren County

All 37 sites, best first.

Warren County datacenter FAQ

How many datacenter sites are in Warren County?

37 scored datacenter candidate sites, averaging 58.4/100 DC Readiness. That is the 32nd-most of 85 Ohio counties with five or more sites.

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

FOSTER scores 65.9/100 DC Readiness, the highest of the 37 scored sites in Warren County (a substation-adjacent site).

Does Warren County offer datacenter tax incentives?

DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.

What is the natural-hazard risk in Warren County?

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

What are industrial electricity rates in Warren County?

Average industrial electricity is 6.05¢/kWh and commercial is 8.08¢/kWh in Warren County.

More in Ohio

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 Warren County, Ohio”, https://gridcensus.com/datacenter-sites/ohio/warren-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 Warren County, Ohio 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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