Datacenter Sites in Seneca County, Ohio
Seneca County has 23 scored datacenter candidate sites averaging 52.2/100 DC Readiness, with a catalogued aggregate of 1,300 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
At a glance
Seneca County, Ohio has 23 scored datacenter candidate sites averaging 52.2/100 DC Readiness, roughly in line with the Ohio average of 53.2. It ranks 51st of 85 Ohio counties by number of sites and 52nd by average score. The top-scoring site is SOUTH BERWICK at 60.5/100.
Site-selection context for Seneca County
Incentive detail: DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
How does Seneca County compare with other counties in Ohio?
By number of scored sites, Seneca County ranks 51st of the 85 Ohio counties with a county page, holding 0.6% of the state's 3,933 sites. Its average DC Readiness of 52.2/100 ranks 52nd in the state and is roughly in line with the national average of 53.0. Nationally it has the 1558th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 7 score 55 or higher.
What types of datacenter sites are in Seneca County?
Industrial sites are the most common (13, 57% of the county's inventory), followed by substation-adjacent (7) and greenfield (2). 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 Seneca County?
Industrial electricity averages 8.95¢/kWh and commercial 12.22¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (30). WRI water stress is low. 8 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 $7,606 an acre.
By site type
Top datacenter sites in Seneca County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| SOUTH BERWICK | Substation-Adjacent | 345 kV | 600 MW | 5.2 yrs | 60.5 |
| UNKNOWN153653 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 56.7 |
| UNKNOWN137321 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 56.6 |
| UNKNOWN114973 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 55.8 |
| UNKNOWN114974 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 55.8 |
| EC FFE Seneca County | Greenfield | — | — | 5.2 yrs | 55.7 |
| UNKNOWN152460 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 55.6 |
| UNKNOWN137801 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 54.5 |
| Former Clark Gasoline Station | Industrial | — | — | 5.2 yrs | 50.3 |
| Former Mr. B's Dry Cleaner | Industrial | — | — | 5.2 yrs | 50.3 |
| Jack's Service Station | Industrial | — | — | 5.2 yrs | 50.3 |
| Elder's Boneyard | Industrial | — | — | 5.2 yrs | 50.3 |
| Progress Industrial Park (Codding Property) | Industrial | — | — | 5.2 yrs | 50.2 |
| Mine Site | Former Mine | — | — | 5.2 yrs | 50.2 |
| Greenfield (UNKNOWN113728 - TIFFIN SUBSTAT) | Greenfield | 138 kV | 100 MW | 5.2 yrs | 50.1 |
| Former Rainbow Muffler | Industrial | — | — | 5.2 yrs | 49.7 |
| Tiffin Glasshouse | Industrial | — | — | 5.2 yrs | 49.7 |
| Former U.S. Card/Sperry Remington | Industrial | — | — | 5.2 yrs | 49.7 |
| Tiffin University Rec Center | Industrial | — | — | 5.2 yrs | 49.7 |
| Former Zoeller Construction | Industrial | — | — | 5.2 yrs | 49.7 |
| Neowood Products | Industrial | — | — | 5.2 yrs | 49.7 |
| Riddlebaugh Insurance | Industrial | — | — | 5.2 yrs | 49.6 |
| Former Firestone/Thallman Tire | Industrial | — | — | 5.2 yrs | 49.6 |
Every scored site in Seneca County
All 23 sites, best first.
- SOUTH BERWICK · 60.5
- Substation-Adjacent site · 5265ed00 · 56.7
- Substation-Adjacent site · 70514006 · 56.6
- Substation-Adjacent site · cf03a337 · 55.8
- Substation-Adjacent site · 1151135e · 55.8
- EC FFE Seneca County · 55.7
- Substation-Adjacent site · fc30bd55 · 55.6
- Substation-Adjacent site · 0866e15d · 54.5
- Former Clark Gasoline Station · 50.3
- Former Mr. B's Dry Cleaner · 50.3
- Jack's Service Station · 50.3
- Elder's Boneyard · 50.3
- Progress Industrial Park (Codding Property) · 50.2
- Mine Site · 2f4d840e · 50.2
- Greenfield (UNKNOWN113728 - TIFFIN SUBSTAT) · 50.1
- Former Rainbow Muffler · 49.7
- Tiffin Glasshouse · 49.7
- Former U.S. Card/Sperry Remington · 49.7
- Tiffin University Rec Center · 49.7
- Former Zoeller Construction · 49.7
- Neowood Products · 49.7
- Riddlebaugh Insurance · 49.6
- Former Firestone/Thallman Tire · 49.6
Seneca County datacenter FAQ
How many datacenter sites are in Seneca County?
23 scored datacenter candidate sites, averaging 52.2/100 DC Readiness. That is the 51st-most of 85 Ohio counties with five or more sites.
What is the highest-scoring datacenter site in Seneca County?
SOUTH BERWICK scores 60.5/100 DC Readiness, the highest of the 23 scored sites in Seneca County (a substation-adjacent site).
Does Seneca County offer datacenter tax incentives?
DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
What is the natural-hazard risk in Seneca County?
FEMA's National Risk Index rates Seneca County as "Relatively Moderate" (score 30).
What are industrial electricity rates in Seneca County?
Average industrial electricity is 8.95¢/kWh and commercial is 12.22¢/kWh in Seneca 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
- Industrial sites in Ohio
- Substation-Adjacent 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 Seneca County, Ohio”, https://gridcensus.com/datacenter-sites/ohio/seneca-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 Seneca 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.