Datacenter Sites in Washington
Washington has 6,627 scored datacenter candidate sites averaging 47.2/100 DC Readiness. Federal Excess parcels lead the inventory (3,676 sites). Most sites interconnect through WECC. The state's candidate sites carry a catalogued aggregate of 523.2k MW and average a 1.7 yrs interconnection-queue wait.
6,627
Candidate sites
47.2/100
Avg DC Readiness
523.2k MW
Catalogued capacity
theoretical aggregate
1.7 yrs
Avg queue wait
By site type
- Federal Excess3,676
- Substation-Adjacent1,240
- Greenfield840
- Industrial538
- Former Mine321
- Brownfield12
Average sub-score profile
How Washington's candidate sites score on each DC Readiness dimension (0–100 average).
Power availability
38.0
Speed-to-power
27.4
Fiber
51.4
Water
56.3
Hazard resilience
55.3
Top 25 datacenter sites in Washington
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| SNO-KING | Substation-Adjacent | Kitsap County | 500 kV | 1,000 MW | 1.7 yrs | 77.1 |
| MONROE | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 1.7 yrs | 76.2 |
| TRANSALTA CENTRALIA GENERATION | Substation-Adjacent | Thurston County | 500 kV | 1,000 MW | 1.7 yrs | 76.1 |
| MAPLE VALLEY | Substation-Adjacent | King County | 500 kV | 1,000 MW | 1.7 yrs | 76.0 |
| TACOMA | Substation-Adjacent | Pierce County | 500 kV | 1,000 MW | 1.7 yrs | 75.6 |
| SNOHOMISH | Substation-Adjacent | Snohomish County | 345 kV | 600 MW | 1.7 yrs | 75.2 |
| COLUMBIA | Substation-Adjacent | Kittitas County | 500 kV | 1,000 MW | 1.7 yrs | 74.9 |
| TAP200917 | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 1.7 yrs | 74.7 |
| UNKNOWN206104 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 1.7 yrs | 74.5 |
| SACAJAWEA | Substation-Adjacent | Walla Walla County | 500 kV | 1,000 MW | 1.7 yrs | 74.4 |
| CUSTER | Substation-Adjacent | San Juan County | 500 kV | 1,000 MW | 1.7 yrs | 74.4 |
| CELILO | Substation-Adjacent | Klickitat County | 1000 kV | 1,000 MW | 5.8 yrs | 74.3 |
| MCNARY | Substation-Adjacent | Benton County | 500 kV | 1,000 MW | 1.7 yrs | 74.3 |
| TAP206102 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 1.7 yrs | 74.1 |
| ROSS | Substation-Adjacent | Clark County | 345 kV | 600 MW | 1.7 yrs | 74.1 |
| BOTHELL | Substation-Adjacent | Snohomish County | 230 kV | 300 MW | 1.7 yrs | 73.9 |
| TAP203128 | Substation-Adjacent | Walla Walla County | 500 kV | 1,000 MW | 1.7 yrs | 73.6 |
| PAUL | Substation-Adjacent | Thurston County | 500 kV | 1,000 MW | 1.7 yrs | 73.6 |
| COLUMBIA GENERATING STATION | Substation-Adjacent | Benton County | 500 kV | 1,000 MW | 1.7 yrs | 73.5 |
| MASSACHUSETTS STREET | Substation-Adjacent | Kitsap County | 230 kV | 300 MW | 1.7 yrs | 73.4 |
| WESTSIDE | Substation-Adjacent | Spokane County | 230 kV | 300 MW | 1.7 yrs | 73.4 |
| SEATTLE CITY EAST PINE | Substation-Adjacent | Kitsap County | 230 kV | 300 MW | 1.7 yrs | 73.3 |
| TAP206105 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 1.7 yrs | 73.3 |
| BERRYDALE | Substation-Adjacent | King County | 230 kV | 300 MW | 1.7 yrs | 73.1 |
| UNKNOWN201377 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 1.7 yrs | 73.0 |
Counties in Washington
39 counties with five or more scored sites.
Grant County1,571 · 42.9Stevens County590 · 38.9Ferry County532 · 38.7King County375 · 52.6Franklin County333 · 44.9Lincoln County283 · 42.1Benton County209 · 60.4Kittitas County208 · 50.0Pierce County202 · 60.0Spokane County164 · 57.6Kitsap County138 · 58.0Okanogan County138 · 42.4Yakima County136 · 50.5Douglas County122 · 53.1Snohomish County117 · 55.8Adams County112 · 44.7Thurston County112 · 53.9Klickitat County109 · 58.6Clark County87 · 56.5Whatcom County83 · 53.6Grays Harbor County82 · 48.5Walla Walla County75 · 59.9Skagit County73 · 52.2Chelan County72 · 53.3Cowlitz County65 · 52.2Clallam County64 · 41.6Lewis County57 · 52.2Island County50 · 58.8Whitman County41 · 55.7Pend Oreille40 · 55.2Mason County34 · 54.5Columbia County30 · 57.9Pacific County27 · 50.8San Juan County27 · 61.9Skamania27 · 43.6Garfield County26 · 59.1Jefferson County18 · 46.5Wahkiakum County16 · 60.5Asotin County6 · 55.5
Washington datacenter site selection FAQ
- How many datacenter sites are in Washington?
- GridCensus catalogs 6,627 scored datacenter candidate sites in Washington, with an average DC Readiness score of 47.2/100.
- What is the average interconnection-queue wait in Washington?
- Candidate sites in Washington average a 1.7 yrs interconnection-queue wait, with an average queue depth of 74 projects.
- What kind of datacenter sites are most common in Washington?
- Federal Excess sites are the most common category in Washington (3,676 sites), and most sites fall within the WECC grid region.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Washington. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.