Datacenter Sites in Adams County, Ohio
Adams County has 16 scored datacenter candidate sites averaging 53.7/100 DC Readiness, with a catalogued aggregate of 2,200 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
At a glance
Adams County, Ohio has 16 scored datacenter candidate sites averaging 53.7/100 DC Readiness, roughly in line with the Ohio average of 53.2. It ranks 60th of 85 Ohio counties by number of sites and 29th by average score. The top-scoring site is KILLEN at 59.8/100.
Site-selection context for Adams County
Incentive detail: DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
How does Adams County compare with other counties in Ohio?
By number of scored sites, Adams County ranks 60th of the 85 Ohio counties with a county page, holding 0.4% of the state's 3,933 sites. Its average DC Readiness of 53.7/100 ranks 29th in the state and is roughly in line with the national average of 53.0. Nationally it has the 1960th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 4 score 55 or higher.
What types of datacenter sites are in Adams County?
Substation-Adjacent sites are the most common (9, 56% of the county's inventory), followed by greenfield (6) and 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 Adams County?
Industrial electricity averages 8.67¢/kWh and commercial 10.92¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (30). WRI water stress is low. 4 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 $5,254 an acre.
By site type
Top datacenter sites in Adams County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| KILLEN | Substation-Adjacent | 345 kV | 600 MW | 5.2 yrs | 59.8 |
| TAP137355 | Substation-Adjacent | 345 kV | 600 MW | 5.2 yrs | 59.5 |
| TAP137356 | Substation-Adjacent | 345 kV | 600 MW | 5.2 yrs | 59.4 |
| EC Coal Adams County | Greenfield | — | — | 5.2 yrs | 56.0 |
| UNKNOWN137361 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 54.1 |
| OZ Adams | Greenfield | — | — | 5.2 yrs | 54.1 |
| PEEBLES | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 54.0 |
| EC Coal Adams County | Greenfield | — | — | 5.2 yrs | 53.1 |
| EC Coal Adams County | Greenfield | — | — | 5.2 yrs | 52.4 |
| EC FFE Adams County | Greenfield | — | — | 5.2 yrs | 52.1 |
| TAP158877 | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 51.7 |
| TAP158874 | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 51.6 |
| UNKNOWN158878 | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 51.6 |
| RARDEN | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 51.5 |
| EC Coal Adams County | Greenfield | — | — | 5.2 yrs | 50.2 |
| Mine Site | Former Mine | — | — | 5.2 yrs | 47.5 |
Every scored site in Adams County
All 16 sites, best first.
- KILLEN · 59.8
- Substation-Adjacent site · 18f3f181 · 59.5
- Substation-Adjacent site · 8c891e02 · 59.4
- EC Coal Adams County · 5e067972 · 56.0
- Substation-Adjacent site · 4bffe4a2 · 54.1
- OZ Adams · 54.1
- PEEBLES · 54.0
- EC Coal Adams County · 3e70eb94 · 53.1
- EC Coal Adams County · a4848bca · 52.4
- EC FFE Adams County · 52.1
- Substation-Adjacent site · 2c9905e8 · 51.7
- Substation-Adjacent site · 2d061727 · 51.6
- Substation-Adjacent site · 46db755d · 51.6
- RARDEN · 51.5
- EC Coal Adams County · 57b426d0 · 50.2
- Mine Site · 4db57d0d · 47.5
Adams County datacenter FAQ
How many datacenter sites are in Adams County?
16 scored datacenter candidate sites, averaging 53.7/100 DC Readiness. That is the 60th-most of 85 Ohio counties with five or more sites.
What is the highest-scoring datacenter site in Adams County?
KILLEN scores 59.8/100 DC Readiness, the highest of the 16 scored sites in Adams County (a substation-adjacent site).
Does Adams County offer datacenter tax incentives?
DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
What is the natural-hazard risk in Adams County?
FEMA's National Risk Index rates Adams County as "Relatively Moderate" (score 30).
What are industrial electricity rates in Adams County?
Average industrial electricity is 8.67¢/kWh and commercial is 10.92¢/kWh in Adams County.
More in Ohio
- All datacenter sites in Ohio· 3,933 sites
- Operating datacenters in Ohio
- Electric substations in Ohio
- Cuyahoga County· 348 sites · avg 55.2
- Lucas County· 221 sites · avg 53.8
- Hamilton County· 177 sites · avg 56.7
- Lorain· 139 sites · avg 53.5
- Summit County· 129 sites · avg 55.5
- Jefferson County· 125 sites · avg 49.2
- Substation-Adjacent sites in Ohio
- Greenfield sites 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 Adams County, Ohio”, https://gridcensus.com/datacenter-sites/ohio/adams-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 Adams 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.