Washington index · last changed 18 September 2026

Washington data centers: what the public record shows.

Selected source-linked records are published below. This is not a complete inventory of Washington data centers.

13 sourced policy records for Washington ↓Facility register: 60 records · by county →5 published DataCenterData records · evidence status shown per row42 licensed directory leads · not independently verifiedThese counts overlap and are not added together

Explore Washington

Map, listings and checked facts.

Start with 42 licensed source leads, then inspect the separate public-evidence layer below. Licensed rows are not independently verified and are not a statewide census.

Washington map

Reported locations in Washington

42 licensed rows · 18 source localities · 5 map targets

Open interactive map
Source-reported points; some are approximate. Not parcel boundaries. Exact Approximate or representative Bounded nearby groupA number on a marker is the count of licensed rows it holds.Licensed layer only (Compute Atlas, source data through 14 October 2026). The interactive map lists 71 data-center source listings here across licensed, operator and DataCenterData layers (47 with a map point); 78 with government registry records. Source listings are not distinct sites.
Browse 5 mapped areas as links
Map sources and method

The state outline is adapted from the U.S. Census Bureau 2025 cartographic boundary file. Facility coordinates are adapted from Compute Atlas by Edward Kubiak, edition 1.34.1, under CC BY 4.0. Outline and markers use one geographic projection before any explicitly disclosed readability offset. Exact singleton source anchors are never moved. A one-kilometre boundary tolerance prevents the simplified 1:20,000,000 outline from hiding legitimate border-area source points; farther conflicts are disclosed, not clamped. DataCenterData groups source-reported city coordinates only within a bounded map radius; the outline does not validate a facility record. Some locations in this layer are reported by the provider as derived from OpenStreetMap (© OpenStreetMap contributors, ODbL, https://www.openstreetmap.org/copyright) and Epoch AI (CC BY 4.0).

42 licensed rows18 reported city labels26 eligible organization labels

Browse all 42 rows below. Licensed rows are not independently verified and remain separate from the checked public-evidence layer.

  1. source-reported operationalCapacity not statedSource updated 17 September 2026exact location (provider label)
  2. source-reported proposedReported planned 320 MWSource updated 12 October 2026approximate location

Separate layer

Also listed by operators

Sites that operators list on their own websites and that are not rows in the licensed directory above. They are kept apart and never added to the licensed rows.

15 operator-listed sites (mixed units; not added to licensed rows) in Washington →

12 of these sites have no supported coordinate. The map does not invent a pin or a metro placement for them.

Washington evidence at a glance

A few checked sites

Selected public evidence, not a statewide census. Each row shows whether it is independently source-linked, attributed, or unresolved; licensed leads remain separate.

Published project / campus
3
Published facility / building
2
Attributed or unresolved rows
0
Licensed directory leads
42 not independently verified
Capacity boundary stated
2 of 5 published DataCenterData rows
Review timing
Audit through 12 September 2026 · next 16 March 2027
Known coverage gap

The Department of Revenue's exemption eligibility page could not be retrieved during review, so the program's criteria and any participant information were not read.

Browse all 42 Washington licensed leads → · Why these counts differ →

Campuses and Operating facilities

3 campus records · 2 operating facility records. Names are as they appear on each record page.

Campuses and Operating facilities published for Washington
Record / rolesStatusCapacity / scalePrimary evidence
Intergate Quincy — Sabey Data Center PropertiesOperator: Sabey Data Center Properties operatingcampus up to 248.1 MWPermitted backup generation · campus scopeCombined permitted emergency-generator capacity; not IT load or utility demand. Washington Ecology Approval Order 26AQ-E016 and technical support document →Gov. record
Amazon Attalia Data Center Campus proposedcampus UnknownNo independently supported figure Determination of Completeness — SDP26-01, SEPA26-05 →Gov. record
Vantage Data Centers — Quincy CampusOperator: Vantage Data Centers operatingcampus · Washington State Department of Ecology approval order dated 29 August 2023 49.5 MWPermitted backup generation · campus scopeEcology states a 49.5 MW facility total for installed emergency generators in Phases One and Two. The component figures printed in the order do not sum to that total. This is permitted backup generation, not critical IT capacity, utility service or measured load. Phase Three equipment is outside the stated total. Washington State Department of Ecology — data centers regulated or reviewed by Ecology →Gov. record
CyrusOne — Quincy Data CenterOperator: CyrusOne operatingoperating facility · Washington State Department of Ecology approval order dated 22 January 2026 UnknownNo independently supported figureThe order reduces the permitted emergency-generator count from 42 to 22. Generator count is not IT capacity, utility service or measured load and is not converted to MW here. Washington State Department of Ecology — data centers regulated or reviewed by Ecology →Gov. record
H5 Data Centers — QuincyOperator: H5 Data Centers operatingoperating facility · Washington State Department of Ecology approval order dated 26 November 2024 UnknownNo independently supported figureEmergency-generator and cooling-unit ratings in the order are not critical IT capacity, utility service or measured load and are not converted here. Washington State Department of Ecology — data centers regulated or reviewed by Ecology →Gov. record

Where the records were checked

Statewide audit pending

A few checked sites

This is not a list of every data center in the state, and the number here is not a count of them. There are almost certainly more.

Statewide coverage is not complete. The records below are sourced; a full statewide count has not been published.

State research audit window ended 12 September 2026. Individual records and claims below show their own evidence dates and may be newer.

Next scheduled coverage review: 16 March 2027.

3 independently source-linked project/campus records; 2 independently source-linked facility/building records; 0 attributed or unresolved rows. These counts use different units and must not be added together.

Source families checked, selected records and remaining gaps

These notes name selected records, say which kinds of public evidence were checked and show what remains missing. They do not add anything to the published counts.

  • Economic development incentives — Partly checked
    • The Department of Revenue's exemption eligibility page could not be retrieved during review, so the program's criteria and any participant information were not read.
    • No participant or certificate list was located: the exemption's accountability data is filed through annual tax performance reports under RCW 82.32.534, which were not obtained, so no individual exemption recipient is named in the current research record.
    • RCW 82.08.986 and Substitute Senate Bill 6231 on expiring data center exemptions were seen only in search results and were not yet reviewed directly.

    Selected records

  • Utility commission and large-load records — Partly checked
    • chelanpud.org could not be retrieved during review, so no PUD primary record was read.
    • No Grant County PUD or Douglas County PUD commission agenda, minutes, rate schedule or service agreement was obtained.
    • No Washington Utilities and Transportation Commission docket was searched; the current review did not include a broad discovery sweep before that family could be worked.
    • The 2022 Puget Sound Energy interconnection filing said to describe a 958 MW Goldendale data center was not located or read.

    Selected records

  • Environmental and construction permits — Checked
    • Ecology's list covers only facilities Ecology itself regulates; the page states it is not a complete list of every data center in Washington and directs readers to local clean air agencies for other counties. No local clean air agency (for example Puget Sound Clean Air Agency, Spokane Regional Clean Air Agency or Benton Clean Air Agency) was searched.
    • The current Microsoft Columbia order 25AQ-E009 was not read; the order read for that site, 22AQ-E006, is listed as rescinded.
    • Approval orders for the East Wenatchee, Cle Elum, Ellensburg, Moses Lake and Olympia sites were not downloaded; those research leads rest on the Ecology list entry alone.
    • No water withdrawal, discharge, stormwater or building permit record was searched for any Washington data center.

    Selected records

  • Local planning, assessor and map records — Partly checked
    • No county assessor or GIS parcel record was queried anywhere in Washington; every parcel-level fact in the current research record comes from a permit or a dataset, not an assessor.
    • No City of Quincy, Grant County, Douglas County, Chelan County or Pierce County planning or council record was searched.
    • The Walla Walla County staff report, SEPA checklist and site plan behind SDP26-01 were not obtained, so no parcel number, building count or capacity figure is available for that project.
    • The City of Cle Elum data center ban and the Blue Fern development agreement were not read.

    Selected records

  • Tax abatements and development agreements — Partly checked
    • No port, city or county agreement document was retrieved for any Washington site.
    • The Port of Walla Walla resolution approving the Amazon land sale was not located; it is known only through the county FAQ and the dataset.
    • The City of Richland option agreement for the Atlas Agro campus was not obtained.
    • the current review did not include a broad discovery sweep before this family could be searched directly; the one logged query was run while reviewing Oregon and surfaced the Port of Walla Walla overview document.

    Selected records

  • Operator disclosures — Partly checked
    • No hyperscaler or colocation operator location page was opened for Washington (Microsoft, Amazon, Sabey, Vantage, CyrusOne, H5, NTT DATA, Serverfarm, Centeris, Digital Realty).
    • The Bitdeer Form 20-F property section was not read.
    • the current review did not include a broad discovery sweep before this family could be searched directly.

    Selected records

  • Open datasets and directories — Checked
    • Nine Salcido Enterprises crypto-mining records across Grant, Chelan and Douglas Counties were reviewed in the extract table and left out as crypto mining with no evidenced AI or HPC conversion; only one crypto site (Merkle Standard Usk) was carried forward as an explicit rejection.
    • Three power_generation records in the extract (Energy Northwest Cascade Advanced Energy Facility, Goldendale Energy Storage Project, Helion Orion) were reviewed and left out as generation projects rather than data centers.
    • Seattle, Tukwila and Spokane colocation records (Digital Realty SEA1, Sabey Intergate.East Buildings 1 and 5, Sabey Intergate.West Buildings A and C, H5 Seattle, Lumen Spokane, TierPoint Spokane) were not individually examined and are not research leads.
    • No directory listing service was consulted in the current review.

    Selected records

  • Closures, withdrawals and former names — Checked
    • The Giga Watt bankruptcy docket and the Port of Douglas County record of the site's future use were not obtained; the CoinDesk report was not yet reviewed directly.
    • The rescinded Ecology approval orders were not downloaded, so what changed between each order and its replacement is unread.
    • No withdrawn or denied Washington data center land use application was located; the Walla Walla County application was delayed by an incomplete-application notice but not denied.
    • the current review did not include a broad discovery sweep before this family could be searched directly.

    Selected records

  • News and other discovery — Partly checked
    • No systematic Washington news sweep was performed.
    • The Columbia Riverkeeper February 2026 report, cited by the dataset for several Washington capacity figures, was not yet reviewed directly and no figure from it is used.

    Selected records

Local evidence by place

Licensed and operator listings, reviewed records, answers and local policy for each place. Listings overlap and are not added; a place without a line here has no published local evidence.

No local evidence answer, reviewed record or local policy record is published for Cle Elum, East Wenatchee, Goldendale, Kent, Liberty Lake, Lynnwood, Malaga, Moses Lake, Richland. Their listings above are source listings to investigate. No statewide evidence answer is published for Washington either; statewide rules are under Policy tracker below.

Policy tracker

Washington policy records

13 sourced records are associated with this state context. They are grouped below as current, pending and nonbinding, and history, and each card shows its relevant date. These are not facility counts and do not cover every locality.

Current 10 records

Recorded as in effect on the dataset date. This does not mean every project in a represented state is restricted or approved.

Local construction moratorium · Pierce County only (local rule)

Pierce County: one-year pause on permits for data centers over 10 MW in unincorporated areas (Ord. O2026-557)

In effect · Unincorporated Pierce County, Washington · Local

Effective: 27 August 2026

Issuing authority: Pierce County Council

On 25 August 2026 the Pierce County Council passed Ordinance No. O2026-557, an emergency ordinance adopting a development moratorium on certain data centers, by a 6-1 vote; the Council's legislative record lists 27 August 2026 as its effective date.

Read the sourced record · Primary source

Local construction moratorium · Tukwila only (local rule)

Tukwila: one-year moratorium on applications for data centers over 20 MVA (Ordinance 2795)

In effect · Tukwila, Washington · Local

Effective: 3 August 2026

Issuing authority: Tukwila City Council

The Tukwila City Council passed Ordinance No. 2795 on 3 August 2026 as an emergency ordinance establishing a one-year moratorium on accepting, processing or approving applications to establish, expand or change use to internet data centers with capacity over 20 MVA anywhere in the city.

Read the sourced record · Primary source

Enacted legislation or regulation · Seattle only (local rule)

Seattle: new large data center loads served only by contract

In effect · Seattle, Washington · Local

Source document: 22 July 2026

Issuing authority: Seattle City Council

Seattle Ordinance 127473, passed by the City Council on 21 July 2026 and approved by the Mayor on 22 July 2026, requires Seattle City Light to serve any new large data center load, meaning 10 MVA or more of new or expanded capacity installed within five years after 1 January 2027, under an individual contract instead of general service rates, with minimum terms such as a guaranteed minimum demand.

Read the sourced record · Primary source

Enacted legislation or regulation

Replacement-equipment exemption removed

In effect · Washington · State

Effective: 1 July 2026

Issuing authority: Washington State Legislature

Washington chapter 266 of 2026 removed the ongoing replacement-server-equipment paths from the qualifying data center sales- and use-tax exemption definitions beginning 1 July 2026.

Read the sourced record · Primary source

Enacted legislation or regulation

Data Center Workgroup order

In effect · Washington · State

Effective: 3 February 2025

Issuing authority: Governor of Washington

Washington Executive Order 25-05, signed on 3 February 2025 and effective immediately, directs the Department of Revenue to create and lead a Data Center Workgroup with other state agencies to study data centers' effects and recommend policy.

Read the sourced record · Primary source

Incentive or explicitly supportive policy

Rural-county data center sales-tax exemption

In effect · Washington · State

Last checked: 23 September 2026

Issuing authority: Washington State Legislature

Washington RCW 82.08.986 exempts eligible server equipment and eligible power infrastructure for a qualifying computer data center that is in a rural county when the exemption application is received and that meets the section's size and construction-timing conditions.

Read the sourced record · Primary source

Incentive or explicitly supportive policy

Large-county data center sales-tax exemption

In effect · Washington · State

Last checked: 23 September 2026

Issuing authority: Washington State Legislature

Washington RCW 82.08.9861 is a separate sales-tax exemption for eligible server equipment and power infrastructure in an eligible computer data center when the qualifying business is in a county with a population over 800,000 under the 1 April 2021 population estimates cited in the section.

Read the sourced record · Primary source

Pending or nonbinding 2 records

Adopted measures with unverified effect, adopted future measures, open proceedings, proposals, drafts and nonbinding context stay separate from current rules.

Reporting or resource-use requirement

Ecology data center air permitting page (backup diesel generators)

Informational—not binding · Washington · State

Last checked: 5 October 2026

Issuing authority: Washington State Department of Ecology

Washington's Department of Ecology explains how it permits data centers' diesel backup generators: a notice of construction permit is required before a data center is built or expanded, and when required a health impact assessment of diesel exhaust and nitrogen dioxide must be reviewed first.

Read the sourced record · Primary source

Legislation introduced (any outcome)

E2SHB 2515 data center (emerging large energy use facility) bill (passed House only)

Proposed · Washington · State

Last checked: 2 October 2026

Issuing authority: Washington State Legislature

Washington E2SHB 2515 would have treated data centers of 20 megawatts or more as emerging large energy use facilities, requiring investor-owned utilities to file commission-approved tariffs or policies for them, requiring facility sustainability reports, and revising data center server-equipment tax exemptions.

Read the sourced record · Primary source

History 1 record

Expired, repealed, vetoed, failed, blocked, superseded and completed measures remain visible without being presented as current.

Open the Washington policy comparison

Review dates: the 13 Washington records were last checked 22 September 2026 to 30 October 2026. 8 scheduled reviews are overdue as of the tracker date 3 November 2026: Seattle: new large data center loads served only by contract, Data Center Workgroup order, Large-county data center use-tax exemption, Rural-county data center sales-tax exemption, Large-county data center sales-tax exemption (last checked 23 September 2026, review due 23 October 2026); Replacement-equipment exemption removed (last checked 22 September 2026, review due 22 October 2026); E2SHB 2515 data center (emerging large energy use facility) bill (passed House only) (last checked 2 October 2026, review due 30 October 2026); Rural-county data center use-tax exemption (last checked 1 October 2026, review due 29 October 2026). Overdue means not re-read yet, not changed. No single record, and not this list, establishes complete statewide policy coverage.