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Datacenter Sites in Grant County, Washington

Grant County has 1,518 scored datacenter candidate sites averaging 52.7/100 DC Readiness, with a catalogued aggregate of 12,770 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

Grant County, Washington has 1,518 scored datacenter candidate sites averaging 52.7/100 DC Readiness, roughly in line with the Washington average of 51.7. It ranks 1st of 39 Washington counties by number of sites and 23rd by average score. The top-scoring site is COLUMBIA at 69.1/100.

1,518
Candidate sites
52.7/100
Avg DC Readiness
12,770 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Grant County

Site-selection context for Grant County

Yessales_tax_exemption
Datacenter tax incentive
6.65¢/kWh
Commercial electricity
5.15¢/kWh
Industrial electricity
11
Fiber providers
Low-Medium
Water stress
$5,216
Land price / acre
300
Cooling degree days
5,000
Heating degree days
48°F
Mean annual temp

Incentive detail: Sales tax exemption on DC equipment and construction for eligible facilities; no state income tax.

How does Grant County compare with other counties in Washington?

By number of scored sites, Grant County ranks 1st of the 39 Washington counties with a county page, holding 25% of the state's 6,019 sites. Its average DC Readiness of 52.7/100 ranks 23rd in the state and is roughly in line with the national average of 53.0. Nationally it has the largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 117 score 55 or higher.

What types of datacenter sites are in Grant County?

Federal Excess sites are the most common (1,439, 95% of the county's inventory), followed by substation-adjacent (67) and greenfield (6). 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 5.15¢/kWh and commercial 6.65¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (28). WRI water stress is low-medium. 11 fiber providers report service in the county. The climate runs 300 cooling degree days a year with a mean temperature of 48°F. Land is valued around $5,216 an acre.

By site type

Top datacenter sites in Grant County

Top datacenter sites in Grant County
SiteTypeVoltageCapacityQueue waitScore
COLUMBIASubstation-Adjacent500 kV1,000 MW3.5 yrs69.1
WanapumBrownfield500 kV1,038 MW3.5 yrs68.2
UNKNOWN206104Substation-Adjacent230 kV300 MW3.5 yrs66.6
UNKNOWN209155Substation-Adjacent230 kV300 MW3.5 yrs66.5
LARSONSubstation-Adjacent230 kV300 MW3.5 yrs66.3
TAP206102Substation-Adjacent230 kV300 MW3.5 yrs66.3
TAP206103Substation-Adjacent230 kV300 MW3.5 yrs66.2
VANTAGESubstation-Adjacent500 kV1,000 MW3.5 yrs65.6
UNKNOWN206111Substation-Adjacent230 kV300 MW3.5 yrs65.2
TAP206107Substation-Adjacent230 kV300 MW3.5 yrs65.2
UNKNOWN206113Substation-Adjacent230 kV300 MW3.5 yrs65.1
SAND DUNESSubstation-Adjacent230 kV300 MW3.5 yrs65.0
TAP206112Substation-Adjacent230 kV300 MW3.5 yrs64.9
ROCKY FORDSubstation-Adjacent230 kV300 MW3.5 yrs64.7
TAP206034Substation-Adjacent230 kV300 MW3.5 yrs64.6
POTHOLESSubstation-Adjacent230 kV300 MW3.5 yrs63.9
EC Near Randolph RoadGreenfield——3.5 yrs63.7
EC Near Randolph RoadGreenfield——3.5 yrs63.3
Randolph RoadBrownfield—32 MW3.5 yrs63.2
EC Near Randolph RoadGreenfield——3.5 yrs62.8
EC Near Randolph RoadGreenfield——3.5 yrs62.8
EC Near Randolph RoadGreenfield——3.5 yrs62.8
UNKNOWN206036Substation-Adjacent230 kV300 MW3.5 yrs62.6
UNKNOWN201931Substation-Adjacent230 kV300 MW3.5 yrs62.6
UNKNOWN201508Substation-Adjacent138 kV100 MW3.5 yrs62.5

Every scored site in Grant County

The 1,000 highest-scoring of 1,518 sites, best first.

Grant County datacenter FAQ

How many datacenter sites are in Grant County?

1,518 scored datacenter candidate sites, averaging 52.7/100 DC Readiness. That is the most of 39 Washington counties with five or more sites.

What is the highest-scoring datacenter site in Grant County?

COLUMBIA scores 69.1/100 DC Readiness, the highest of the 1,000 scored sites in Grant County (a substation-adjacent site).

Does Grant County offer datacenter tax incentives?

Sales tax exemption on DC equipment and construction for eligible facilities; no state income tax.

What is the natural-hazard risk in Grant County?

FEMA's National Risk Index rates Grant County as "Relatively Moderate" (score 28).

What are industrial electricity rates in Grant County?

Average industrial electricity is 5.15¢/kWh and commercial is 6.65¢/kWh in Grant County.

More in Washington

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, Washington”, https://gridcensus.com/datacenter-sites/washington/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, Washington 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.

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