Datacenter Sites in Grant County, Oregon
Grant County has 14 scored datacenter candidate sites averaging 47.4/100 DC Readiness, with a catalogued aggregate of 400 MW. FEMA rates local natural-hazard risk as "Relatively Low". The county has a datacenter tax incentive on record.
At a glance
Grant County, Oregon has 14 scored datacenter candidate sites averaging 47.4/100 DC Readiness, about 11% below the Oregon average of 53.1. It ranks 34th of 36 Oregon counties by number of sites and 35th by average score. The top-scoring site is WEST JOHN DAY at 52.2/100.
Site-selection context for Grant County
Incentive detail: Enterprise Zone property tax exemption for 3-15 years; no sales tax in Oregon.
How does Grant County compare with other counties in Oregon?
By number of scored sites, Grant County ranks 34th of the 36 Oregon counties with a county page, holding 0.6% of the state's 2,430 sites. Its average DC Readiness of 47.4/100 ranks 35th in the state and is about 11% below the national average of 53.0. Nationally it has the 2089th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 0 score 55 or higher.
What types of datacenter sites are in Grant County?
Former Mine sites are the most common (6, 43% of the county's inventory), followed by substation-adjacent (5) and industrial (3). 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 Grant County?
Industrial electricity averages 6.53¢/kWh and commercial 8.56¢/kWh. FEMA's National Risk Index rates the county "Relatively Low" (22). WRI water stress is medium-high. 3 fiber providers report service in the county. The climate runs 300 cooling degree days a year with a mean temperature of 49°F. Land is valued around $1,324 an acre.
By site type
Top datacenter sites in Grant County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| WEST JOHN DAY | Substation-Adjacent | 138 kV | 100 MW | 3.5 yrs | 52.2 |
| SENECA | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 51.9 |
| UNKNOWN207206 | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 51.9 |
| JOHN DAY | Substation-Adjacent | 69 kV | 50 MW | 3.5 yrs | 49.9 |
| PRAIRIE CITY | Substation-Adjacent | 69 kV | 50 MW | 3.5 yrs | 49.9 |
| Mine Site | Former Mine | — | — | 3.5 yrs | 47.8 |
| Mine Site | Former Mine | — | — | 3.5 yrs | 47.8 |
| Mine Site | Former Mine | — | — | 3.5 yrs | 45.6 |
| Blue Mtn. Jr. High | Industrial | — | — | 3.5 yrs | 44.8 |
| Mine Site | Former Mine | — | — | 3.5 yrs | 44.7 |
| Mine Site | Former Mine | — | — | 3.5 yrs | 44.5 |
| Grant County Airport Industrial Park | Industrial | — | — | 3.5 yrs | 44.5 |
| Edward Hines Indusrial Park | Industrial | — | — | 3.5 yrs | 44.4 |
| Mine Site | Former Mine | — | — | 3.5 yrs | 44.4 |
Every scored site in Grant County
All 14 sites, best first.
- WEST JOHN DAY · 52.2
- SENECA · 51.9
- Substation-Adjacent site · c17611ea · 51.9
- JOHN DAY · 49.9
- PRAIRIE CITY · 49.9
- Mine Site · 17273560 · 47.8
- Mine Site · a1f2e0b0 · 47.8
- Mine Site · 3e3b611d · 45.6
- Blue Mtn. Jr. High · 44.8
- Mine Site · 9f4791c2 · 44.7
- Mine Site · 7e551aa6 · 44.5
- Grant County Airport Industrial Park · 44.5
- Edward Hines Indusrial Park · 44.4
- Mine Site · 8b5d829d · 44.4
Grant County datacenter FAQ
How many datacenter sites are in Grant County?
14 scored datacenter candidate sites, averaging 47.4/100 DC Readiness. That is the 34th-most of 36 Oregon counties with five or more sites.
What is the highest-scoring datacenter site in Grant County?
WEST JOHN DAY scores 52.2/100 DC Readiness, the highest of the 14 scored sites in Grant County (a substation-adjacent site).
Does Grant County offer datacenter tax incentives?
Enterprise Zone property tax exemption for 3-15 years; no sales tax in Oregon.
What is the natural-hazard risk in Grant County?
FEMA's National Risk Index rates Grant County as "Relatively Low" (score 22).
What are industrial electricity rates in Grant County?
Average industrial electricity is 6.53¢/kWh and commercial is 8.56¢/kWh in Grant County.
More in Oregon
- All datacenter sites in Oregon· 2,430 sites
- Operating datacenters in Oregon
- Electric substations in Oregon
- Klamath County· 266 sites · avg 49.3
- Multnomah County· 234 sites · avg 58.5
- Jackson County· 159 sites · avg 54.0
- Malheur County· 152 sites · avg 47.7
- Washington County· 139 sites · avg 57.8
- Lane County· 132 sites · avg 57.1
- Former Mine sites in Oregon
- Substation-Adjacent sites in Oregon
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 Grant County, Oregon”, https://gridcensus.com/datacenter-sites/oregon/grant-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 Grant County, Oregon 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.