Datacenter Sites in King County, Washington
King County has 375 scored datacenter candidate sites averaging 52.6/100 DC Readiness, with a catalogued aggregate of 34,610 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
375
Candidate sites
52.6/100
Avg DC Readiness
34,610 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
Site-selection context for King County
Yessales_tax_exemption
Datacenter tax incentive
8.87¢/kWh
Commercial electricity
7.33¢/kWh
Industrial electricity
19
Fiber providers
Low-Medium
Water stress
$38,716
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.
By site type
Top datacenter sites in King County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MAPLE VALLEY | Substation-Adjacent | 500 kV | 1,000 MW | 1.7 yrs | 76.0 |
| BERRYDALE | Substation-Adjacent | 230 kV | 300 MW | 1.7 yrs | 73.1 |
| ECHO LAKE | Substation-Adjacent | 500 kV | 1,000 MW | 1.7 yrs | 72.8 |
| INVALID | Substation-Adjacent | 500 kV | 1,000 MW | 1.7 yrs | 72.7 |
| TAP206230 | Substation-Adjacent | 500 kV | 1,000 MW | 1.7 yrs | 72.4 |
| KLAHANIE | Substation-Adjacent | 230 kV | 300 MW | 1.7 yrs | 72.0 |
| COVINGTON | Substation-Adjacent | 500 kV | 1,000 MW | 1.7 yrs | 71.8 |
| NOVELTY HILL | Substation-Adjacent | 230 kV | 300 MW | 1.7 yrs | 70.0 |
| RAVER | Substation-Adjacent | 500 kV | 1,000 MW | 1.7 yrs | 69.8 |
| UNKNOWN202951 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 69.5 |
| Greenfield (INVALID - MAPLE VALLEY) | Greenfield | 500 kV | 1,000 MW | 1.7 yrs | 69.3 |
| Greenfield (ECHO LAKE - MAPLE VALLEY) | Greenfield | 500 kV | 1,000 MW | 1.7 yrs | 69.1 |
| GRADY | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.9 |
| TAP200932 | Substation-Adjacent | 161 kV | 100 MW | 1.7 yrs | 68.8 |
| UNKNOWN201899 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.7 |
| TAP206791 | Substation-Adjacent | 161 kV | 100 MW | 1.7 yrs | 68.6 |
| UNKNOWN201979 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.6 |
| UNKNOWN202945 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.6 |
| UNKNOWN202936 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.5 |
| Greenfield (TAP200917 - ECHO LAKE) | Greenfield | 500 kV | 1,000 MW | 1.7 yrs | 68.5 |
| TAP209806 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.5 |
| TAP200912 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.3 |
| TAP209024 | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.3 |
| TAP200931 | Substation-Adjacent | 161 kV | 100 MW | 1.7 yrs | 68.2 |
| FACTORIA | Substation-Adjacent | 115 kV | 100 MW | 1.7 yrs | 68.2 |
King County datacenter FAQ
- How many datacenter sites are in King County?
- 375 scored datacenter candidate sites, averaging 52.6/100 DC Readiness.
- Does King 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 King County?
- FEMA's National Risk Index rates King County as "Relatively Moderate" (score 28).
- What are industrial electricity rates in King County?
- Average industrial electricity is 7.33¢/kWh and commercial is 8.87¢/kWh in King County.
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 King County, 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.