Datacenter Sites in Columbia County, Washington
Columbia County has 15 scored datacenter candidate sites averaging 55.1/100 DC Readiness, with a catalogued aggregate of 2,600 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
At a glance
Columbia County, Washington has 15 scored datacenter candidate sites averaging 55.1/100 DC Readiness, roughly in line with the Washington average of 51.7. It ranks 36th of 39 Washington counties by number of sites and 14th by average score. The top-scoring site is LITTLE GOOSE at 64.8/100.
Site-selection context for Columbia County
Incentive detail: Sales tax exemption on DC equipment and construction for eligible facilities; no state income tax.
How does Columbia County compare with other counties in Washington?
By number of scored sites, Columbia County ranks 36th of the 39 Washington counties with a county page, holding 0.2% of the state's 6,019 sites. Its average DC Readiness of 55.1/100 ranks 14th in the state and is roughly in line with the national average of 53.0. Nationally it has the 2019th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 7 score 55 or higher.
What types of datacenter sites are in Columbia County?
Substation-Adjacent sites are the most common (11, 73% of the county's inventory), followed by greenfield (2) and federal excess (2). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.
What are power cost, hazard, water and fiber conditions in Columbia County?
Industrial electricity averages 7.53¢/kWh and commercial 10.10¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (28). WRI water stress is low-medium. 5 fiber providers report service in the county. The climate runs 300 cooling degree days a year with a mean temperature of 48°F. Land is valued around $2,280 an acre.
By site type
Top datacenter sites in Columbia County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| LITTLE GOOSE | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 64.8 |
| DODGE JUNCTION | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 59.0 |
| UNKNOWN201371 | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 58.8 |
| OZ Columbia | Greenfield | — | — | 3.5 yrs | 56.6 |
| WAITSBURG | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 56.0 |
| UNKNOWN207595 | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 56.0 |
| UNKNOWN207596 | Substation-Adjacent | 138 kV | 100 MW | 3.5 yrs | 55.8 |
| TAP207416 | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 54.8 |
| UNKNOWN202087 | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 54.7 |
| UNKNOWN201420 | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 54.4 |
| UNKNOWN207601 | Substation-Adjacent | 69 kV | 50 MW | 3.5 yrs | 54.0 |
| TAP207600 | Substation-Adjacent | 69 kV | 50 MW | 3.5 yrs | 53.9 |
| Greenfield (UNKNOWN202086 - UNKNOWN202281) | Greenfield | 230 kV | 300 MW | 3.5 yrs | 52.7 |
| TUCANNON NATIONAL FISH HATCHERY | Federal Excess | — | — | 3.5 yrs | 47.7 |
| TUCANNON NATIONAL FISH HATCHERY | Federal Excess | — | — | 3.5 yrs | 47.7 |
Every scored site in Columbia County
All 15 sites, best first.
- LITTLE GOOSE · 64.8
- DODGE JUNCTION · 59.0
- Substation-Adjacent site · 23f38eff · 58.8
- OZ Columbia · 56.6
- WAITSBURG · 56.0
- Substation-Adjacent site · fc54ab89 · 56.0
- Substation-Adjacent site · 25a175c4 · 55.8
- Substation-Adjacent site · b28aaff5 · 54.8
- Substation-Adjacent site · e78b8578 · 54.7
- Substation-Adjacent site · deb5043c · 54.4
- Substation-Adjacent site · 9803f664 · 54.0
- Substation-Adjacent site · 1b5ffdfe · 53.9
- Greenfield (UNKNOWN202086 - UNKNOWN202281) · 52.7
- TUCANNON NATIONAL FISH HATCHERY · e896f032 · 47.7
- TUCANNON NATIONAL FISH HATCHERY · 66486ecf · 47.7
Columbia County datacenter FAQ
How many datacenter sites are in Columbia County?
15 scored datacenter candidate sites, averaging 55.1/100 DC Readiness. That is the 36th-most of 39 Washington counties with five or more sites.
What is the highest-scoring datacenter site in Columbia County?
LITTLE GOOSE scores 64.8/100 DC Readiness, the highest of the 15 scored sites in Columbia County (a substation-adjacent site).
Does Columbia 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 Columbia County?
FEMA's National Risk Index rates Columbia County as "Relatively Moderate" (score 28).
What are industrial electricity rates in Columbia County?
Average industrial electricity is 7.53¢/kWh and commercial is 10.10¢/kWh in Columbia County.
More in Washington
- All datacenter sites in Washington· 6,019 sites
- Operating datacenters in Washington
- Electric substations in Washington
- Grant County· 1,518 sites · avg 52.7
- Stevens County· 577 sites · avg 47.4
- Ferry County· 527 sites · avg 47.1
- King County· 344 sites · avg 56.1
- Franklin County· 305 sites · avg 50.6
- Lincoln County· 252 sites · avg 48.4
- Substation-Adjacent sites in Washington
- Greenfield sites in Washington
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Columbia County, Washington”, https://gridcensus.com/datacenter-sites/washington/columbia-county (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Columbia County, Washington is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.