Datacenter Sites in Marshall County, Alabama
Marshall County has 20 scored datacenter candidate sites averaging 54.5/100 DC Readiness, with a catalogued aggregate of 1,900 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
At a glance
Marshall County, Alabama has 20 scored datacenter candidate sites averaging 54.5/100 DC Readiness, roughly in line with the Alabama average of 55.0. It ranks 39th of 67 Alabama counties by number of sites and 39th by average score. The top-scoring site is GUNTERSVILLE DAM at 59.2/100.
Site-selection context for Marshall County
Incentive detail: Sales & use tax abatement on qualifying equipment. $400M+ investment threshold.
How does Marshall County compare with other counties in Alabama?
By number of scored sites, Marshall County ranks 39th of the 67 Alabama counties with a county page, holding 0.6% of the state's 3,107 sites. Its average DC Readiness of 54.5/100 ranks 39th in the state and is roughly in line with the national average of 53.0. Nationally it has the 1729th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 9 score 55 or higher.
What types of datacenter sites are in Marshall County?
Former Mine sites are the most common (10, 50% of the county's inventory), followed by substation-adjacent (8) and greenfield (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 Marshall County?
Industrial electricity averages 7.16¢/kWh and commercial 12.21¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (45). WRI water stress is low. 9 fiber providers report service in the county. The climate runs 2,100 cooling degree days a year with a mean temperature of 63°F. Land is valued around $5,745 an acre.
By site type
Top datacenter sites in Marshall County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| GUNTERSVILLE DAM | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 59.2 |
| GEORGIA MOUNTAIN | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 59.0 |
| ARAB | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 58.8 |
| GUNTERSVILLE PRIMARY | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 58.8 |
| COLUMBUS CITY | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 58.6 |
| Greenfield (TAP152961 - TAP155137) | Greenfield | 500 kV | 1,000 MW | 3.9 yrs | 58.5 |
| ALBERTVILLE | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 58.1 |
| N ALBERTVILLE | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 58.0 |
| TAP153399 | Substation-Adjacent | 161 kV | 100 MW | 3.9 yrs | 57.9 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 52.5 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 51.9 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 51.9 |
| Greenfield (TAP152967 - TAP153400) | Greenfield | 161 kV | 100 MW | 3.9 yrs | 51.5 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 51.1 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 51.0 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 50.9 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 50.9 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 50.6 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 50.3 |
| Mine Site | Former Mine | — | — | 3.9 yrs | 50.0 |
Every scored site in Marshall County
All 20 sites, best first.
- GUNTERSVILLE DAM · 59.2
- GEORGIA MOUNTAIN · 59.0
- ARAB · 58.8
- GUNTERSVILLE PRIMARY · 58.8
- COLUMBUS CITY · 58.6
- Greenfield (TAP152961 - TAP155137) · 58.5
- ALBERTVILLE · 58.1
- N ALBERTVILLE · 58.0
- Substation-Adjacent site · e8cfffbc · 57.9
- Mine Site · 32411c1a · 52.5
- Mine Site · 95e472f8 · 51.9
- Mine Site · 18bf132b · 51.9
- Greenfield (TAP152967 - TAP153400) · 51.5
- Mine Site · 1e3490b5 · 51.1
- Mine Site · 9612ff0e · 51.0
- Mine Site · 0538653f · 50.9
- Mine Site · 4a29f3dd · 50.9
- Mine Site · 87b5ebd4 · 50.6
- Mine Site · f47280ee · 50.3
- Mine Site · 4dc0082c · 50.0
Marshall County datacenter FAQ
How many datacenter sites are in Marshall County?
20 scored datacenter candidate sites, averaging 54.5/100 DC Readiness. That is the 39th-most of 67 Alabama counties with five or more sites.
What is the highest-scoring datacenter site in Marshall County?
GUNTERSVILLE DAM scores 59.2/100 DC Readiness, the highest of the 20 scored sites in Marshall County (a substation-adjacent site).
Does Marshall County offer datacenter tax incentives?
Sales & use tax abatement on qualifying equipment. $400M+ investment threshold.
What is the natural-hazard risk in Marshall County?
FEMA's National Risk Index rates Marshall County as "Relatively High" (score 45).
What are industrial electricity rates in Marshall County?
Average industrial electricity is 7.16¢/kWh and commercial is 12.21¢/kWh in Marshall County.
More in Alabama
- All datacenter sites in Alabama· 3,107 sites
- Operating datacenters in Alabama
- Electric substations in Alabama
- Jefferson County· 365 sites · avg 57.4
- Walker County· 286 sites · avg 52.0
- Tuscaloosa County· 194 sites · avg 54.1
- Mobile County· 151 sites · avg 55.1
- Montgomery County· 99 sites · avg 59.1
- Baldwin County· 82 sites · avg 53.8
- Former Mine sites in Alabama
- Substation-Adjacent sites in Alabama
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 Marshall County, Alabama”, https://gridcensus.com/datacenter-sites/alabama/marshall-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 Marshall County, Alabama 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.