Datacenter Sites in Washington
Washington has 6,019 scored datacenter candidate sites averaging 52.1/100 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 198.4k MW and average a 6.8 yrs interconnection-queue wait.
6,019
Candidate sites
52.1/100
Avg DC Readiness
198.4k MW
Catalogued capacity
theoretical aggregate
6.8 yrs
Avg queue wait
By site type
- Federal Excess3,676
- Substation-Adjacent1,343
- Industrial538
- Former Mine321
- Greenfield133
- Brownfield8
Average sub-score profile
How Washington's candidate sites score on each DC Readiness dimension (0–100 average).
Power availability
36.5
Speed-to-power
42.3
Fiber
63.1
Water
63.7
Hazard resilience
71.0
Top 25 datacenter sites in Washington
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| COLUMBIA | Substation-Adjacent | Grant County | 500 kV | 1,000 MW | 6.9 yrs | 69.5 |
| MAPLE VALLEY | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 68.9 |
| SNO-KING | Substation-Adjacent | Kitsap County | 500 kV | 1,000 MW | 6.9 yrs | 68.7 |
| COVINGTON | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 68.6 |
| TAP200917 | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 6.9 yrs | 68.5 |
| BELL | Substation-Adjacent | Spokane County | 500 kV | 1,000 MW | 6.9 yrs | 68.5 |
| Wanapum | Brownfield | Grant County | 500 kV | 1,038 MW | 6.9 yrs | 68.3 |
| MONROE | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 6.9 yrs | 68.3 |
| SACAJAWEA | Substation-Adjacent | Walla Walla County | 500 kV | 1,000 MW | 6.9 yrs | 67.9 |
| ECHO LAKE | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 67.8 |
| SICKLER | Substation-Adjacent | Chelan County | 500 kV | 1,000 MW | 6.9 yrs | 67.8 |
| UNKNOWN201455 | Substation-Adjacent | Thurston County | 500 kV | 1,000 MW | 6.9 yrs | 67.8 |
| CUSTER | Substation-Adjacent | San Juan County | 500 kV | 1,000 MW | 6.9 yrs | 67.4 |
| UNKNOWN206104 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.1 |
| OZ Spokane | Greenfield | Spokane | — | — | 1.7 yrs | 67.1 |
| UNKNOWN209155 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.0 |
| RAVER | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 67.0 |
| SNOHOMISH | Substation-Adjacent | Snohomish County | 345 kV | 600 MW | 6.9 yrs | 66.9 |
| LARSON | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.8 |
| TAP206230 | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 66.7 |
| TAP206102 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.7 |
| TAP206103 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.6 |
| COLUMBIA GENERATING STATION | Substation-Adjacent | Benton County | 500 kV | 1,000 MW | 6.9 yrs | 66.6 |
| OZ Yakima | Greenfield | Yakima | — | — | 1.7 yrs | 66.6 |
| OZ Benton | Greenfield | Benton | — | — | 1.7 yrs | 66.5 |
Counties in Washington
39 counties with five or more scored sites.
Grant County1,518 · 53.1Stevens County577 · 47.8Ferry County527 · 47.6King County344 · 56.6Franklin County305 · 51.1Lincoln County252 · 48.9Kitsap County165 · 56.8Benton County161 · 57.6Pierce County160 · 57.6Kittitas County155 · 51.6Spokane County140 · 57.4Okanogan County125 · 48.6Snohomish County120 · 57.3Thurston County116 · 54.3Yakima County114 · 53.9Adams County97 · 51.3Clark County84 · 56.2Grays Harbor County75 · 51.6Whatcom County73 · 55.8Clallam County67 · 47.8Douglas County65 · 53.1Chelan County60 · 55.6Cowlitz County56 · 53.0Klickitat County55 · 54.6Island County52 · 54.9Lewis County47 · 54.1Skagit County47 · 53.0San Juan County43 · 55.7Walla Walla County43 · 56.5Whitman33 · 56.5Mason County29 · 53.7Skamania County28 · 50.8Pend Oreille24 · 55.5Jefferson County18 · 50.4Pacific County18 · 51.6Columbia County15 · 55.7Garfield County10 · 56.8Wahkiakum County8 · 57.3Asotin County5 · 52.8
Washington datacenter site selection FAQ
- How many datacenter sites are in Washington?
- GridCensus catalogs 6,019 scored datacenter candidate sites in Washington, with an average DC Readiness score of 52.1/100.
- What is the average interconnection-queue wait in Washington?
- Candidate sites in Washington average a 6.8 yrs interconnection-queue wait, with an average queue depth of 34 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.