King County, Washington
DataCentersExposed tracks 8 AI data centers in King County, Washington — 5 operating and 0 in the pipeline, led by Sabey Data Centers. Its transparent data-center risk score is 0/100.
Sources: Methodology, Coverage scorecard
King County, Washington has 8 tracked data centers, 5 of them operating. Its composite data-center risk score is 16 out of 100 — see the breakdown above for which factors drive it.
Reporting by Eric Keller · Updated May 29, 2026
- Project exposure · 28
- Power demand · 0
- Water draw · n/a
- Land footprint · n/a
What's happening in King County
Sabey Data Centers has the largest presence in King County. We resolve project codenames and shell LLCs back to the corporate parent wherever the public record allows, so the table below names who is actually behind each site.
Below: every tracked facility in the county, the active state legislation that names it or its county, and local news. Commissioner vote records arrive in a later release; the placeholders show where that accountability data will land.
Every tracked facility
| Facility | Operator | Status | MW |
|---|---|---|---|
| CTI Biopharma Seattle | — | Mapped (unverified) | — |
| Equinix SE3 Data Center Seattle | Equinix, Inc. | — | |
| Intergate Seattle East Building 4 Tukwila | Digital Realty Trust, Inc. | Mapped (unverified) | — |
| Intergate Seattle West Building C Tukwila | Sabey Data Centers | — | |
| KOMO Plaza East Seattle | — | — | |
| KOMO Plaza West Seattle | — | Mapped (unverified) | — |
| The Seattle Times Seattle | H5 Data Centers | — | |
| Westin Building Seattle | Digital Realty Trust, Inc. | — |
County commissioners
How the King County board votes on each data-center matter — the rezonings, the abatements, the water permits — is built from public-meeting minutes and roll-call records. Know of a vote we should be tracking? Tell us.