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Datacenter Sites in Marion County, Oregon

Marion County has 67 scored datacenter candidate sites averaging 54.1/100 DC Readiness, with a catalogued aggregate of 6,400 MW. FEMA rates local natural-hazard risk as "Relatively Low". The county has a datacenter tax incentive on record.

At a glance

Marion County, Oregon has 67 scored datacenter candidate sites averaging 54.1/100 DC Readiness, roughly in line with the Oregon average of 53.1. It ranks 12th of 36 Oregon counties by number of sites and 12th by average score. The top-scoring site is SANTIAM at 65.9/100.

67
Candidate sites
54.1/100
Avg DC Readiness
6,400 MW
Catalogued capacity
theoretical aggregate
Relatively Low
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Marion County

Site-selection context for Marion County

Yesproperty_tax_exemption
Datacenter tax incentive
7.80¢/kWh
Commercial electricity
6.09¢/kWh
Industrial electricity
15
Fiber providers
Medium-High
Water stress
$17,033
Land price / acre
300
Cooling degree days
4,700
Heating degree days
49°F
Mean annual temp

Incentive detail: Enterprise Zone property tax exemption for 3-15 years; no sales tax in Oregon.

How does Marion County compare with other counties in Oregon?

By number of scored sites, Marion County ranks 12th of the 36 Oregon counties with a county page, holding 2.8% of the state's 2,430 sites. Its average DC Readiness of 54.1/100 ranks 12th in the state and is roughly in line with the national average of 53.0. Nationally it has the 549th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 22 score 55 or higher.

What types of datacenter sites are in Marion County?

Industrial sites are the most common (26, 39% of the county's inventory), followed by substation-adjacent (20) and former mine (11). 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 Marion County?

Industrial electricity averages 6.09¢/kWh and commercial 7.80¢/kWh. FEMA's National Risk Index rates the county "Relatively Low" (22). WRI water stress is medium-high. 15 fiber providers report service in the county. The climate runs 300 cooling degree days a year with a mean temperature of 49°F. Land is valued around $17,033 an acre.

By site type

Top datacenter sites in Marion County

Top datacenter sites in Marion County
SiteTypeVoltageCapacityQueue waitScore
SANTIAMSubstation-Adjacent500 kV1,000 MW3.5 yrs65.9
MARIONSubstation-Adjacent500 kV1,000 MW3.5 yrs65.2
TAP206092Substation-Adjacent230 kV300 MW3.5 yrs62.7
BETHELSubstation-Adjacent230 kV300 MW3.5 yrs62.0
UNKNOWN202662Substation-Adjacent230 kV300 MW3.5 yrs61.8
UNKNOWN201991Substation-Adjacent230 kV300 MW3.5 yrs61.6
DETROITSubstation-Adjacent345 kV600 MW3.5 yrs61.0
OZ MarionGreenfield——3.5 yrs60.0
MOLALLASubstation-Adjacent115 kV100 MW3.5 yrs58.5
Greenfield (JOHN DAY 2 - MARION)Greenfield500 kV1,000 MW3.5 yrs58.4
MT ANGELSubstation-Adjacent115 kV100 MW3.5 yrs58.2
TAP205767Substation-Adjacent115 kV100 MW3.5 yrs57.9
TAP207067Substation-Adjacent115 kV100 MW3.5 yrs57.8
UNKNOWN206525Substation-Adjacent115 kV100 MW3.5 yrs57.6
TAP207052Substation-Adjacent115 kV100 MW3.5 yrs57.6
CULVERSubstation-Adjacent115 kV100 MW3.5 yrs57.5
LYONSSubstation-Adjacent115 kV100 MW3.5 yrs57.4
SILVERTONSubstation-Adjacent115 kV100 MW3.5 yrs57.1
UNKNOWN207049Substation-Adjacent115 kV100 MW3.5 yrs57.1
MILL CTEEKSubstation-Adjacent115 kV100 MW3.5 yrs57.0
NEW STAYTONSubstation-Adjacent115 kV100 MW3.5 yrs56.7
SCIOSubstation-Adjacent115 kV100 MW3.5 yrs56.3
Greenfield (SANTIAM - JONES CANYON)Greenfield230 kV300 MW3.5 yrs53.9
3850 Portland RdIndustrial——3.5 yrs52.0
SUMCOIndustrial——3.5 yrs52.0

Every scored site in Marion County

All 67 sites, best first.

Marion County datacenter FAQ

How many datacenter sites are in Marion County?

67 scored datacenter candidate sites, averaging 54.1/100 DC Readiness. That is the 12th-most of 36 Oregon counties with five or more sites.

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

SANTIAM scores 65.9/100 DC Readiness, the highest of the 67 scored sites in Marion County (a substation-adjacent site).

Does Marion County offer datacenter tax incentives?

Enterprise Zone property tax exemption for 3-15 years; no sales tax in Oregon.

What is the natural-hazard risk in Marion County?

FEMA's National Risk Index rates Marion County as "Relatively Low" (score 22).

What are industrial electricity rates in Marion County?

Average industrial electricity is 6.09¢/kWh and commercial is 7.80¢/kWh in Marion County.

More in Oregon

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 Marion County, Oregon”, https://gridcensus.com/datacenter-sites/oregon/marion-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 Marion County, Oregon 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.