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Datacenter Sites in MARION, Indiana

MARION has 900 scored datacenter candidate sites averaging 56.1/100 DC Readiness, with a catalogued aggregate of 8,800 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.

At a glance

MARION, Indiana has 900 scored datacenter candidate sites averaging 56.1/100 DC Readiness, roughly in line with the Indiana average of 53.8. It ranks 1st of 91 Indiana counties by number of sites and 9th by average score. The top-scoring site is Substation-Adjacent site · 80b4f653 at 68.7/100.

900
Candidate sites
56.1/100
Avg DC Readiness
8,800 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in MARION

Site-selection context for MARION

Yessales_tax_exemption
Datacenter tax incentive
13.79¢/kWh
Commercial electricity
10.09¢/kWh
Industrial electricity
20
Fiber providers
Low
Water stress
$11,101
Land price / acre
1,000
Cooling degree days
5,500
Heating degree days
52°F
Mean annual temp

Incentive detail: Sales tax exemption on DC equipment for $750M+/$400M+ investments; EDGE credits up to 100% of payroll taxes.

How does MARION compare with other counties in Indiana?

By number of scored sites, MARION ranks 1st of the 91 Indiana counties with a county page, holding 10% of the state's 8,629 sites. Its average DC Readiness of 56.1/100 ranks 9th in the state and is roughly in line with the national average of 53.0. Nationally it has the 4th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 830 score 55 or higher.

What types of datacenter sites are in MARION?

Manufacturing sites are the most common (661, 73% of the county's inventory), followed by industrial (156) and substation-adjacent (57). 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?

Industrial electricity averages 10.09¢/kWh and commercial 13.79¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (32). WRI water stress is low. 20 fiber providers report service in the county. The climate runs 1,000 cooling degree days a year with a mean temperature of 52°F. Land is valued around $11,101 an acre.

By site type

Top datacenter sites in MARION

Top datacenter sites in MARION
SiteTypeVoltageCapacityQueue waitScore
UNKNOWN124504Substation-Adjacent345 kV600 MW3.0 yrs68.7
HANNASubstation-Adjacent345 kV600 MW3.0 yrs67.5
GUIONSubstation-Adjacent345 kV600 MW3.0 yrs67.3
SUNNYSIDESubstation-Adjacent345 kV600 MW3.0 yrs67.2
ROCKVILLESubstation-Adjacent345 kV600 MW3.0 yrs67.2
RISER167168Substation-Adjacent345 kV600 MW3.0 yrs67.0
UNKNOWN124474Substation-Adjacent230 kV300 MW3.0 yrs65.3
OZ MarionGreenfield——3.0 yrs64.8
OZ MarionGreenfield——3.0 yrs64.1
OZ MarionGreenfield——3.0 yrs64.0
OZ MarionGreenfield——3.0 yrs63.9
OZ MarionGreenfield——3.0 yrs63.6
OZ MarionGreenfield——3.0 yrs63.3
UNKNOWN124513Substation-Adjacent138 kV100 MW3.0 yrs63.2
OZ MarionGreenfield——3.0 yrs63.1
UNKNOWN124525Substation-Adjacent138 kV100 MW3.0 yrs62.9
UNKNOWN124498Substation-Adjacent138 kV100 MW3.0 yrs62.8
RISER167166Substation-Adjacent138 kV100 MW3.0 yrs62.8
UNKNOWN124368Substation-Adjacent138 kV100 MW3.0 yrs62.7
UNKNOWN124380Substation-Adjacent138 kV100 MW3.0 yrs62.7
UNKNOWN124517Substation-Adjacent138 kV100 MW3.0 yrs62.7
UNKNOWN124412Substation-Adjacent138 kV100 MW3.0 yrs62.6
UNKNOWN124358Substation-Adjacent138 kV100 MW3.0 yrs62.6
UNKNOWN124379Substation-Adjacent138 kV100 MW3.0 yrs62.6
UNKNOWN124524Substation-Adjacent138 kV100 MW3.0 yrs62.6

Every scored site in MARION

All 900 sites, best first.

MARION datacenter FAQ

How many datacenter sites are in MARION?

900 scored datacenter candidate sites, averaging 56.1/100 DC Readiness. That is the most of 91 Indiana counties with five or more sites.

What is the highest-scoring datacenter site in MARION?

Substation-Adjacent site · 80b4f653 scores 68.7/100 DC Readiness, the highest of the 900 scored sites in MARION (a substation-adjacent site).

Does MARION offer datacenter tax incentives?

Sales tax exemption on DC equipment for $750M+/$400M+ investments; EDGE credits up to 100% of payroll taxes.

What is the natural-hazard risk in MARION?

FEMA's National Risk Index rates MARION as "Relatively Moderate" (score 32).

What are industrial electricity rates in MARION?

Average industrial electricity is 10.09¢/kWh and commercial is 13.79¢/kWh in MARION.

More in Indiana

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, Indiana”, https://gridcensus.com/datacenter-sites/indiana/marion (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, Indiana 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.