Datacenter Sites in Miami County, Ohio
Miami County has 41 scored datacenter candidate sites averaging 53.4/100 DC Readiness, with a catalogued aggregate of 2,000 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
At a glance
Miami County, Ohio has 41 scored datacenter candidate sites averaging 53.4/100 DC Readiness, roughly in line with the Ohio average of 53.2. It ranks 28th of 85 Ohio counties by number of sites and 33rd by average score. The top-scoring site is MIAMI at 63.3/100.
Site-selection context for Miami County
Incentive detail: DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
How does Miami County compare with other counties in Ohio?
By number of scored sites, Miami County ranks 28th of the 85 Ohio counties with a county page, holding 1.0% of the state's 3,933 sites. Its average DC Readiness of 53.4/100 ranks 33rd in the state and is roughly in line with the national average of 53.0. Nationally it has the 949th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 18 score 55 or higher.
What types of datacenter sites are in Miami County?
Industrial sites are the most common (17, 41% of the county's inventory), followed by substation-adjacent (12) and greenfield (11). 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 Miami County?
Industrial electricity averages 7.80¢/kWh and commercial 10.30¢/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 $10,549 an acre.
By site type
Top datacenter sites in Miami County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MIAMI | Substation-Adjacent | 345 kV | 600 MW | 5.2 yrs | 63.3 |
| WEST MILTON | Substation-Adjacent | 345 kV | 600 MW | 5.2 yrs | 62.7 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 58.1 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 57.4 |
| NEW CARLISLE | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 57.1 |
| STAUNTON | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 56.8 |
| ELDEAN | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 56.7 |
| TAP141226 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 56.7 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 56.4 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 56.4 |
| TAP141227 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 56.4 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 56.3 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 56.1 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 55.5 |
| UNKNOWN141228 | Substation-Adjacent | 138 kV | 100 MW | 5.2 yrs | 55.4 |
| UNKNOWN112951 | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 55.3 |
| UNKNOWN113861 | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 55.3 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 55.2 |
| PIQUA POWER PLANT | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 54.8 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 54.7 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 53.8 |
| EC Near Piqua Power Plant | Greenfield | — | — | 5.2 yrs | 53.1 |
| UNKNOWN113852 | Substation-Adjacent | 69 kV | 50 MW | 5.2 yrs | 53.0 |
| West Milton Pure Gas Station | Industrial | — | — | 5.2 yrs | 50.3 |
| Mine Site | Former Mine | — | — | 5.2 yrs | 50.1 |
Every scored site in Miami County
All 41 sites, best first.
- MIAMI · 63.3
- WEST MILTON · 62.7
- EC Near Piqua Power Plant · e8b778b0 · 58.1
- EC Near Piqua Power Plant · 5d1ce671 · 57.4
- NEW CARLISLE · 57.1
- STAUNTON · 56.8
- ELDEAN · 56.7
- Substation-Adjacent site · 5e0a06ef · 56.7
- EC Near Piqua Power Plant · dcf838a6 · 56.4
- EC Near Piqua Power Plant · 233d4cc6 · 56.4
- Substation-Adjacent site · 68e2a526 · 56.4
- EC Near Piqua Power Plant · f295befb · 56.3
- EC Near Piqua Power Plant · 40b75302 · 56.1
- EC Near Piqua Power Plant · c1fb4722 · 55.5
- Substation-Adjacent site · 044efae8 · 55.4
- Substation-Adjacent site · 23ecbe36 · 55.3
- Substation-Adjacent site · b48962a3 · 55.3
- EC Near Piqua Power Plant · b70d93b4 · 55.2
- PIQUA POWER PLANT · 54.8
- EC Near Piqua Power Plant · 9e3d6838 · 54.7
- EC Near Piqua Power Plant · acbf99af · 53.8
- EC Near Piqua Power Plant · c7312a38 · 53.1
- Substation-Adjacent site · f3533377 · 53.0
- West Milton Pure Gas Station · 50.3
- Mine Site · 10e310ec · 50.1
- Blanton Property · 1f537d02 · 49.6
- Former Piqua Feed & Seed · 49.6
- Decker Building · 49.6
- Hartzell Lumber, Inc. · 49.5
- Nationwide Building · 49.5
- Zollinger's Lot · 49.5
- Blanton Property · 4af8b861 · 49.5
- Piqua Granite · 49.5
- Zollinger's Building · 49.5
- Former MO's Lounge · 49.5
- Fifth Third Building · 49.5
- Mo's Lounge · 49.5
- Curtis Property · 49.5
- Old Laundry Property · 49.5
- Former DP&L Substation · 49.5
- Old Rudy Elevator Site · 49.2
Miami County datacenter FAQ
How many datacenter sites are in Miami County?
41 scored datacenter candidate sites, averaging 53.4/100 DC Readiness. That is the 28th-most of 85 Ohio counties with five or more sites.
What is the highest-scoring datacenter site in Miami County?
MIAMI scores 63.3/100 DC Readiness, the highest of the 41 scored sites in Miami County (a substation-adjacent site).
Does Miami County offer datacenter tax incentives?
DC sales tax exemption on equipment and electricity (2022 law); JobsOhio grants.
What is the natural-hazard risk in Miami County?
FEMA's National Risk Index rates Miami County as "Relatively Moderate" (score 30).
What are industrial electricity rates in Miami County?
Average industrial electricity is 7.80¢/kWh and commercial is 10.30¢/kWh in Miami 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 Miami County, Ohio”, https://gridcensus.com/datacenter-sites/ohio/miami-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 Miami 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.