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Datacenter Sites in Harrison County, Mississippi

Harrison County has 118 scored datacenter candidate sites averaging 53.5/100 DC Readiness, with a catalogued aggregate of 2,800 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.

At a glance

Harrison County, Mississippi has 118 scored datacenter candidate sites averaging 53.5/100 DC Readiness, roughly in line with the Mississippi average of 53.0. It ranks 6th of 80 Mississippi counties by number of sites and 26th by average score. The top-scoring site is Substation-Adjacent site · 0b3d7eb7 at 64.4/100.

118
Candidate sites
53.5/100
Avg DC Readiness
2,800 MW
Catalogued capacity
theoretical aggregate
Relatively High
Hazard rating
◆ Loading map…
≥ 7560–7540–60≤ 40
Top 25 in Harrison County

Site-selection context for Harrison County

Yessales_tax_exemption
Datacenter tax incentive
11.71¢/kWh
Commercial electricity
7.47¢/kWh
Industrial electricity
8
Fiber providers
Low
Water stress
$9,527
Land price / acre
2,400
Cooling degree days
2,400
Heating degree days
64°F
Mean annual temp

Incentive detail: Sales tax exemption on DC equipment for $50M+ investments; fee-in-lieu of property tax.

How does Harrison County compare with other counties in Mississippi?

By number of scored sites, Harrison County ranks 6th of the 80 Mississippi counties with a county page, holding 3.8% of the state's 3,104 sites. Its average DC Readiness of 53.5/100 ranks 26th in the state and is roughly in line with the national average of 53.0. Nationally it has the 263rd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 25 score 55 or higher.

What types of datacenter sites are in Harrison County?

Manufacturing sites are the most common (52, 44% of the county's inventory), followed by substation-adjacent (24) and industrial (22). 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 Harrison County?

Industrial electricity averages 7.47¢/kWh and commercial 11.71¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (45). WRI water stress is low. 8 fiber providers report service in the county. The climate runs 2,400 cooling degree days a year with a mean temperature of 64°F. Land is valued around $9,527 an acre.

By site type

Top datacenter sites in Harrison County

Top datacenter sites in Harrison County
SiteTypeVoltageCapacityQueue waitScore
UNKNOWN110011Substation-Adjacent230 kV300 MW3.9 yrs64.4
UNKNOWN110553Substation-Adjacent230 kV300 MW3.9 yrs62.1
UNKNOWN110015Substation-Adjacent115 kV100 MW3.9 yrs58.3
UNKNOWN110510Substation-Adjacent115 kV100 MW3.9 yrs58.3
UNKNOWN110014Substation-Adjacent115 kV100 MW3.9 yrs58.3
UNKNOWN110307Substation-Adjacent115 kV100 MW3.9 yrs58.3
TAP142827Substation-Adjacent115 kV100 MW3.9 yrs58.2
UNKNOWN110509Substation-Adjacent115 kV100 MW3.9 yrs58.2
UNKNOWN110013Substation-Adjacent115 kV100 MW3.9 yrs58.2
UNKNOWN110505Substation-Adjacent115 kV100 MW3.9 yrs58.2
UNKNOWN110016Substation-Adjacent115 kV100 MW3.9 yrs58.2
UNKNOWN110506Substation-Adjacent115 kV100 MW3.9 yrs58.2
UNKNOWN110503Substation-Adjacent115 kV100 MW3.9 yrs58.1
UNKNOWN110012Substation-Adjacent115 kV100 MW3.9 yrs58.1
UNKNOWN110551Substation-Adjacent115 kV100 MW3.9 yrs58.1
TAP141980Substation-Adjacent115 kV100 MW3.9 yrs58.0
TAP143054Substation-Adjacent115 kV100 MW3.9 yrs58.0
UNKNOWN110507Substation-Adjacent115 kV100 MW3.9 yrs58.0
TAP141984Substation-Adjacent115 kV100 MW3.9 yrs58.0
UNKNOWN110504Substation-Adjacent115 kV100 MW3.9 yrs58.0
TAP141986Substation-Adjacent115 kV100 MW3.9 yrs58.0
UNKNOWN110555Substation-Adjacent115 kV100 MW3.9 yrs57.9
UNKNOWN110318Substation-Adjacent115 kV100 MW3.9 yrs57.8
TAP143055Substation-Adjacent115 kV100 MW3.9 yrs57.8
EC Near Jack WatsonGreenfield——3.9 yrs55.7

Every scored site in Harrison County

All 118 sites, best first.

Harrison County datacenter FAQ

How many datacenter sites are in Harrison County?

118 scored datacenter candidate sites, averaging 53.5/100 DC Readiness. That is the 6th-most of 80 Mississippi counties with five or more sites.

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

Substation-Adjacent site · 0b3d7eb7 scores 64.4/100 DC Readiness, the highest of the 118 scored sites in Harrison County (a substation-adjacent site).

Does Harrison County offer datacenter tax incentives?

Sales tax exemption on DC equipment for $50M+ investments; fee-in-lieu of property tax.

What is the natural-hazard risk in Harrison County?

FEMA's National Risk Index rates Harrison County as "Relatively High" (score 45).

What are industrial electricity rates in Harrison County?

Average industrial electricity is 7.47¢/kWh and commercial is 11.71¢/kWh in Harrison County.

More in Mississippi

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 Harrison County, Mississippi”, https://gridcensus.com/datacenter-sites/mississippi/harrison-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 Harrison County, Mississippi 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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