Datacenter Sites in Washington County, Minnesota
Washington County has 26 scored datacenter candidate sites averaging 56.3/100 DC Readiness, with a catalogued aggregate of 2,550 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
At a glance
Washington County, Minnesota has 26 scored datacenter candidate sites averaging 56.3/100 DC Readiness, roughly in line with the Minnesota average of 56.0. It ranks 37th of 85 Minnesota counties by number of sites and 32nd by average score. The top-scoring site is KING PLANT at 65.5/100.
Site-selection context for Washington County
Incentive detail: Sales tax exemption on DC equipment and electricity for qualified DCs.
How does Washington County compare with other counties in Minnesota?
By number of scored sites, Washington County ranks 37th of the 85 Minnesota counties with a county page, holding 0.8% of the state's 3,216 sites. Its average DC Readiness of 56.3/100 ranks 32nd in the state and is roughly in line with the national average of 53.0. Nationally it has the 1422nd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 13 score 55 or higher.
What types of datacenter sites are in Washington County?
Industrial sites are the most common (9, 35% of the county's inventory), followed by substation-adjacent (9) and former mine (5). 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 Washington County?
Industrial electricity averages 9.39¢/kWh and commercial 12.49¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (25). WRI water stress is low. 10 fiber providers report service in the county. The climate runs 600 cooling degree days a year with a mean temperature of 42°F. Land is valued around $11,320 an acre.
By site type
Top datacenter sites in Washington County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| KING PLANT | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 65.5 |
| UNKNOWN129312 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 61.0 |
| WOODBURY | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.7 |
| LONG LAKE | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.6 |
| Greenfield (KING PLANT - MAXWELL) | Greenfield | 345 kV | 600 MW | 4.3 yrs | 60.3 |
| UNKNOWN129310 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.3 |
| AFTON | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.1 |
| UNKNOWN132866 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 60.1 |
| Washington County Landfill (MN) | Brownfield | 115 kV | 0 MW | 4.3 yrs | 59.3 |
| Greenfield (KING PLANT - MAXWELL) | Greenfield | 345 kV | 600 MW | 4.3 yrs | 59.2 |
| TAP143559 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 58.0 |
| UNKNOWN171732 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 56.3 |
| City of Newport property | Industrial | — | — | 4.3 yrs | 55.2 |
| Bellaire Dump | Industrial | — | — | 4.3 yrs | 54.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 54.3 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 54.2 |
| Stillwater City Dump | Industrial | — | — | 4.3 yrs | 54.0 |
| Stillwater Gas Manufacturing | Industrial | — | — | 4.3 yrs | 54.0 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.9 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.8 |
| Arcola Mills | Industrial | — | — | 4.3 yrs | 52.6 |
| Arcola Mills | Industrial | — | — | 4.3 yrs | 52.6 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 51.6 |
| Tax Forfeited Property | Industrial | — | — | 4.3 yrs | 51.5 |
| Cottage Tax Forfeited Property | Industrial | — | — | 4.3 yrs | 51.5 |
Every scored site in Washington County
All 26 sites, best first.
- KING PLANT · 65.5
- Substation-Adjacent site · ee000236 · 61.0
- WOODBURY · 60.7
- LONG LAKE · 60.6
- Greenfield (KING PLANT - MAXWELL) · e05d4bca · 60.3
- Substation-Adjacent site · 71b5bfef · 60.3
- AFTON · 60.1
- Substation-Adjacent site · 49be0b77 · 60.1
- Washington County Landfill (MN) · 59.3
- Greenfield (KING PLANT - MAXWELL) · bfd47b54 · 59.2
- Substation-Adjacent site · 566d3bcb · 58.0
- Substation-Adjacent site · 9da92079 · 56.3
- City of Newport property · 55.2
- Bellaire Dump · 54.4
- Mine Site · 11ccf7e3 · 54.3
- Mine Site · 97879137 · 54.2
- Stillwater City Dump · 54.0
- Stillwater Gas Manufacturing · 54.0
- Mine Site · e68306f0 · 53.9
- Mine Site · 0f4e58f6 · 53.8
- Arcola Mills · 3b7ceea6 · 52.6
- Arcola Mills · 9c9b0790 · 52.6
- Mine Site · e9c001e1 · 51.6
- Tax Forfeited Property · 51.5
- Cottage Tax Forfeited Property · 51.5
- Barker's Alps Park · 50.0
Washington County datacenter FAQ
How many datacenter sites are in Washington County?
26 scored datacenter candidate sites, averaging 56.3/100 DC Readiness. That is the 37th-most of 85 Minnesota counties with five or more sites.
What is the highest-scoring datacenter site in Washington County?
KING PLANT scores 65.5/100 DC Readiness, the highest of the 26 scored sites in Washington County (a substation-adjacent site).
Does Washington County offer datacenter tax incentives?
Sales tax exemption on DC equipment and electricity for qualified DCs.
What is the natural-hazard risk in Washington County?
FEMA's National Risk Index rates Washington County as "Relatively Moderate" (score 25).
What are industrial electricity rates in Washington County?
Average industrial electricity is 9.39¢/kWh and commercial is 12.49¢/kWh in Washington County.
More in Minnesota
- All datacenter sites in Minnesota· 3,216 sites
- Operating datacenters in Minnesota
- Electric substations in Minnesota
- Dakota County· 374 sites · avg 56.4
- Hennepin County· 237 sites · avg 58.0
- St. Louis County· 179 sites · avg 54.1
- Ramsey County· 171 sites · avg 58.2
- Blue Earth County· 85 sites · avg 54.1
- Itasca County· 84 sites · avg 55.2
- Industrial sites in Minnesota
- Substation-Adjacent sites in Minnesota
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 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Washington County, Minnesota”, https://gridcensus.com/datacenter-sites/minnesota/washington-county (data as of November 13, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Washington County, Minnesota 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.