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Datacenter Sites in Pierce County, Washington

Pierce County has 160 scored datacenter candidate sites averaging 57.1/100 DC Readiness, with a catalogued aggregate of 11,750 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

Pierce County, Washington has 160 scored datacenter candidate sites averaging 57.1/100 DC Readiness, about 10% above the Washington average of 51.7. It ranks 9th of 39 Washington counties by number of sites and 1st by average score. The top-scoring site is Substation-Adjacent site · 2a566a2e at 63.4/100.

160
Candidate sites
57.1/100
Avg DC Readiness
11,750 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Pierce County

Site-selection context for Pierce County

Yessales_tax_exemption
Datacenter tax incentive
8.64¢/kWh
Commercial electricity
6.91¢/kWh
Industrial electricity
10
Fiber providers
Low-Medium
Water stress
$28,343
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.

How does Pierce County compare with other counties in Washington?

By number of scored sites, Pierce County ranks 9th of the 39 Washington counties with a county page, holding 2.7% of the state's 6,019 sites. Its average DC Readiness of 57.1/100 ranks 1st in the state and is roughly in line with the national average of 53.0. Nationally it has the 157th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 103 score 55 or higher.

What types of datacenter sites are in Pierce County?

Substation-Adjacent sites are the most common (102, 64% of the county's inventory), followed by industrial (37) and former mine (17). 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 Pierce County?

Industrial electricity averages 6.91¢/kWh and commercial 8.64¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (28). WRI water stress is low-medium. 10 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 $28,343 an acre.

By site type

Top datacenter sites in Pierce County

Top datacenter sites in Pierce County
SiteTypeVoltageCapacityQueue waitScore
TAP203448Substation-Adjacent230 kV300 MW3.5 yrs63.4
PEARLSubstation-Adjacent230 kV300 MW3.5 yrs63.3
SOUTHWESTSubstation-Adjacent230 kV300 MW3.5 yrs63.2
COWLITZSubstation-Adjacent230 kV300 MW3.5 yrs63.1
UNKNOWN200891Substation-Adjacent230 kV300 MW3.5 yrs63.1
WHITE RIVERSubstation-Adjacent230 kV300 MW3.5 yrs62.9
TAP206441Substation-Adjacent230 kV300 MW3.5 yrs62.8
OZ PierceGreenfield——3.5 yrs62.5
ELECTRON HEIGHTSSubstation-Adjacent230 kV300 MW3.5 yrs62.3
OZ PierceGreenfield——3.5 yrs62.3
UNKNOWN202998Substation-Adjacent138 kV100 MW3.5 yrs60.3
UNKNOWN203009Substation-Adjacent115 kV100 MW3.5 yrs60.3
UNKNOWN202785Substation-Adjacent138 kV100 MW3.5 yrs60.2
TAP206088Substation-Adjacent138 kV100 MW3.5 yrs60.2
TAP206784Substation-Adjacent138 kV100 MW3.5 yrs60.1
TAP206090Substation-Adjacent138 kV100 MW3.5 yrs60.1
UNKNOWN205997Substation-Adjacent115 kV100 MW3.5 yrs60.0
TAP206029Substation-Adjacent138 kV100 MW3.5 yrs60.0
SIMPSON TACOMA KRAFT BIOMASSSubstation-Adjacent115 kV100 MW3.5 yrs60.0
UNKNOWN205996Substation-Adjacent115 kV100 MW3.5 yrs59.9
UNKNOWN205989Substation-Adjacent115 kV100 MW3.5 yrs59.9
UNKNOWN202964Substation-Adjacent115 kV100 MW3.5 yrs59.9
SHAWSubstation-Adjacent115 kV100 MW3.5 yrs59.9
UNKNOWN202423Substation-Adjacent115 kV100 MW3.5 yrs59.9
ALEXANDERSubstation-Adjacent115 kV100 MW3.5 yrs59.9

Every scored site in Pierce County

All 160 sites, best first.

Pierce County datacenter FAQ

How many datacenter sites are in Pierce County?

160 scored datacenter candidate sites, averaging 57.1/100 DC Readiness. That is the 9th-most of 39 Washington counties with five or more sites.

What is the highest-scoring datacenter site in Pierce County?

Substation-Adjacent site · 2a566a2e scores 63.4/100 DC Readiness, the highest of the 160 scored sites in Pierce County (a substation-adjacent site).

Does Pierce 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 Pierce County?

FEMA's National Risk Index rates Pierce County as "Relatively Moderate" (score 28).

What are industrial electricity rates in Pierce County?

Average industrial electricity is 6.91¢/kWh and commercial is 8.64¢/kWh in Pierce County.

More 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 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Datacenter candidate sites in Pierce County, Washington”, https://gridcensus.com/datacenter-sites/washington/pierce-county (data as of November 13, 2026).

Dataset updated . Screening estimates derived from public data sources.

Go deeper than the public screen

Every site and score for Pierce 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.

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