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Datacenter Sites in Columbia County, Wisconsin

Columbia County has 40 scored datacenter candidate sites averaging 56.9/100 DC Readiness, with a catalogued aggregate of 2,800 MW. FEMA rates local natural-hazard risk as "Relatively Low". The county has a datacenter tax incentive on record.

At a glance

Columbia County, Wisconsin has 40 scored datacenter candidate sites averaging 56.9/100 DC Readiness, roughly in line with the Wisconsin average of 55.4. It ranks 26th of 72 Wisconsin counties by number of sites and 11th by average score. The top-scoring site is COLUMBIA at 64.7/100.

40
Candidate sites
56.9/100
Avg DC Readiness
2,800 MW
Catalogued capacity
theoretical aggregate
Relatively Low
Hazard rating
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≥ 7560–7540–60≤ 40
Top 25 in Columbia County

Site-selection context for Columbia County

Yessales_tax_exemption
Datacenter tax incentive
12.84¢/kWh
Commercial electricity
9.02¢/kWh
Industrial electricity
7
Fiber providers
Low
Water stress
$7,544
Land price / acre
600
Cooling degree days
7,200
Heating degree days
44°F
Mean annual temp

Incentive detail: Enterprise Zone tax credits; TIF available for DC construction in eligible areas.

How does Columbia County compare with other counties in Wisconsin?

By number of scored sites, Columbia County ranks 26th of the 72 Wisconsin counties with a county page, holding 1.2% of the state's 3,340 sites. Its average DC Readiness of 56.9/100 ranks 11th in the state and is roughly in line with the national average of 53.0. Nationally it has the 969th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 33 score 55 or higher.

What types of datacenter sites are in Columbia County?

Substation-Adjacent sites are the most common (33, 83% of the county's inventory), followed by former mine (3) and industrial (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 9.02¢/kWh and commercial 12.84¢/kWh. FEMA's National Risk Index rates the county "Relatively Low" (22). WRI water stress is low. 7 fiber providers report service in the county. The climate runs 600 cooling degree days a year with a mean temperature of 44°F. Land is valued around $7,544 an acre.

By site type

Top datacenter sites in Columbia County

Top datacenter sites in Columbia County
SiteTypeVoltageCapacityQueue waitScore
COLUMBIASubstation-Adjacent345 kV600 MW4.3 yrs64.7
ACADEMYSubstation-Adjacent138 kV100 MW4.3 yrs60.0
FOUNTAIN PRAIRIESubstation-Adjacent138 kV100 MW4.3 yrs59.8
PORTAGESubstation-Adjacent138 kV100 MW4.3 yrs59.4
ACEC AFRIESLANDSubstation-Adjacent138 kV100 MW4.3 yrs59.4
TRIENDASubstation-Adjacent138 kV100 MW4.3 yrs59.4
TAP163042Substation-Adjacent138 kV100 MW4.3 yrs59.3
TAP138009Substation-Adjacent138 kV100 MW4.3 yrs59.0
ACEC CAMBRIASubstation-Adjacent138 kV100 MW4.3 yrs58.4
LODISubstation-Adjacent69 kV50 MW4.3 yrs57.6
TAP163080Substation-Adjacent69 kV50 MW4.3 yrs57.6
TAP163078Substation-Adjacent69 kV50 MW4.3 yrs57.6
ARLINGTONSubstation-Adjacent69 kV50 MW4.3 yrs57.4
TAP163079Substation-Adjacent69 kV50 MW4.3 yrs57.4
TAP163099Substation-Adjacent69 kV50 MW4.3 yrs57.3
OKEESubstation-Adjacent69 kV50 MW4.3 yrs57.2
DIDIONSubstation-Adjacent69 kV50 MW4.3 yrs57.0
TAP162949Substation-Adjacent69 kV50 MW4.3 yrs57.0
TAP163298Substation-Adjacent69 kV50 MW4.3 yrs57.0
TAP173296Substation-Adjacent69 kV50 MW4.3 yrs57.0
POYNETTESubstation-Adjacent69 kV50 MW4.3 yrs57.0
HAMPDENSubstation-Adjacent69 kV50 MW4.3 yrs56.9
MERRIMACSubstation-Adjacent69 kV50 MW4.3 yrs56.7
TAP163041Substation-Adjacent69 kV50 MW4.3 yrs56.6
ACEC DOYLESTOWNSubstation-Adjacent69 kV50 MW4.3 yrs56.5

Every scored site in Columbia County

All 40 sites, best first.

Columbia County datacenter FAQ

How many datacenter sites are in Columbia County?

40 scored datacenter candidate sites, averaging 56.9/100 DC Readiness. That is the 26th-most of 72 Wisconsin counties with five or more sites.

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

COLUMBIA scores 64.7/100 DC Readiness, the highest of the 40 scored sites in Columbia County (a substation-adjacent site).

Does Columbia County offer datacenter tax incentives?

Enterprise Zone tax credits; TIF available for DC construction in eligible areas.

What is the natural-hazard risk in Columbia County?

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

What are industrial electricity rates in Columbia County?

Average industrial electricity is 9.02¢/kWh and commercial is 12.84¢/kWh in Columbia County.

More in Wisconsin

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 Columbia County, Wisconsin”, https://gridcensus.com/datacenter-sites/wisconsin/columbia-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 Columbia County, Wisconsin 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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