Datacenter Sites in Washington
Washington has 6,627 scored datacenter candidate sites averaging 53.0/100 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
53.0/100
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
37.8
Speed-to-power
26.8
Fiber
67.5
Water
65.5
Hazard resilience
69.8
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 | 68.1 |
| MAPLE VALLEY | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 67.8 |
| SNO-KING | Substation-Adjacent | Kitsap County | 500 kV | 1,000 MW | 6.9 yrs | 67.5 |
| OZ Spokane | Greenfield | Spokane | — | — | 1.7 yrs | 67.1 |
| COVINGTON | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 67.1 |
| UNKNOWN206104 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 67.1 |
| TAP200917 | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 6.9 yrs | 67.0 |
| BELL | Substation-Adjacent | Spokane County | 500 kV | 1,000 MW | 6.9 yrs | 66.9 |
| TAP206102 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.8 |
| UNKNOWN209155 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.7 |
| Wanapum | Brownfield | Grant County | 500 kV | 1,038 MW | 6.9 yrs | 66.7 |
| LARSON | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.7 |
| OZ Yakima | Greenfield | Yakima | — | — | 1.7 yrs | 66.6 |
| TAP206103 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 66.5 |
| OZ Benton | Greenfield | Benton | — | — | 1.7 yrs | 66.5 |
| MONROE | Substation-Adjacent | Snohomish County | 500 kV | 1,000 MW | 6.9 yrs | 66.4 |
| OZ King | Greenfield | King | — | — | 1.7 yrs | 66.3 |
| SNOHOMISH | Substation-Adjacent | Snohomish County | 345 kV | 600 MW | 6.9 yrs | 66.0 |
| ECHO LAKE | Substation-Adjacent | King County | 500 kV | 1,000 MW | 6.9 yrs | 65.8 |
| OZ King | Greenfield | King | — | — | 1.7 yrs | 65.7 |
| SACAJAWEA | Substation-Adjacent | Walla Walla County | 500 kV | 1,000 MW | 6.9 yrs | 65.6 |
| EC Near Randolph Road | Greenfield | Grant | — | — | 1.7 yrs | 65.5 |
| UNKNOWN206113 | Substation-Adjacent | Grant County | 230 kV | 300 MW | 6.9 yrs | 65.4 |
| Randolph Road | Brownfield | Grant County | — | 32 MW | 1.7 yrs | 65.4 |
| EC Near Randolph Road | Greenfield | Grant | — | — | 1.7 yrs | 65.1 |
Counties in Washington
39 counties with five or more scored sites.
Grant County1,571 · 51.1Stevens County590 · 47.3Ferry County532 · 46.7King County375 · 57.7Franklin County333 · 52.1Lincoln County283 · 49.0Benton County209 · 62.1Kittitas County208 · 54.9Pierce County202 · 62.7Spokane County164 · 61.1Kitsap County138 · 61.1Okanogan County138 · 49.3Yakima County136 · 55.9Douglas County122 · 55.9Snohomish County117 · 59.8Adams County112 · 51.4Thurston County112 · 57.9Klickitat County109 · 60.0Clark County87 · 59.9Whatcom County83 · 58.4Grays Harbor County82 · 53.5Walla Walla County75 · 61.6Skagit County73 · 55.4Chelan County72 · 56.9Cowlitz County65 · 56.2Clallam County64 · 47.9Lewis County57 · 55.4Island County50 · 60.2Whitman County41 · 58.0Pend Oreille40 · 56.8Mason County34 · 57.3Columbia County30 · 59.1Pacific County27 · 52.8San Juan County27 · 63.2Skamania27 · 50.4Garfield County26 · 60.4Jefferson County18 · 51.2Wahkiakum County16 · 61.0Asotin County6 · 57.9
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 53.0/100.
- 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.