Datacenter Sites in Clark County, South Dakota
Clark County has 9 scored datacenter candidate sites averaging 55.7/100 DC Readiness, with a catalogued aggregate of 750 MW. FEMA rates local natural-hazard risk as "Relatively Low". The county has a datacenter tax incentive on record.
At a glance
Clark County, South Dakota has 9 scored datacenter candidate sites averaging 55.7/100 DC Readiness, roughly in line with the South Dakota average of 54.7. It ranks 36th of 52 South Dakota counties by number of sites and 15th by average score. The top-scoring site is Substation-Adjacent site · 54b9cd5c at 61.9/100.
Site-selection context for Clark County
Incentive detail: No state corporate income tax; no personal income tax; no personal property tax.
How does Clark County compare with other counties in South Dakota?
By number of scored sites, Clark County ranks 36th of the 52 South Dakota counties with a county page, holding 0.8% of the state's 1,151 sites. Its average DC Readiness of 55.7/100 ranks 15th in the state and is roughly in line with the national average of 53.0. Nationally it has the 2493rd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 6 score 55 or higher.
What types of datacenter sites are in Clark County?
Substation-Adjacent sites are the most common (7, 78% of the county's inventory), followed by former mine (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 Clark County?
Industrial electricity averages 8.45¢/kWh and commercial 9.86¢/kWh. FEMA's National Risk Index rates the county "Relatively Low" (22). WRI water stress is low-medium. 3 fiber providers report service in the county. The climate runs 700 cooling degree days a year with a mean temperature of 45°F. Land is valued around $4,741 an acre.
By site type
Top datacenter sites in Clark County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN131209 | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 61.9 |
| UNKNOWN159689 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.4 |
| TAP159691 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 56.9 |
| UNKNOWN159687 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 56.9 |
| UNKNOWN159474 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 56.0 |
| UNKNOWN159666 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 55.0 |
| TAP159657 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 54.8 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 51.6 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 51.0 |
Every scored site in Clark County
All 9 sites, best first.
- Substation-Adjacent site · 54b9cd5c · 61.9
- Substation-Adjacent site · f1c62ae8 · 57.4
- Substation-Adjacent site · 4da69d19 · 56.9
- Substation-Adjacent site · 82c22ec3 · 56.9
- Substation-Adjacent site · d7368c85 · 56.0
- Substation-Adjacent site · cdae7fa2 · 55.0
- Substation-Adjacent site · a0fb0e1b · 54.8
- Mine Site · f15d374e · 51.6
- Mine Site · 7bfa8b93 · 51.0
Clark County datacenter FAQ
How many datacenter sites are in Clark County?
9 scored datacenter candidate sites, averaging 55.7/100 DC Readiness. That is the 36th-most of 52 South Dakota counties with five or more sites.
What is the highest-scoring datacenter site in Clark County?
Substation-Adjacent site · 54b9cd5c scores 61.9/100 DC Readiness, the highest of the 9 scored sites in Clark County (a substation-adjacent site).
Does Clark County offer datacenter tax incentives?
No state corporate income tax; no personal income tax; no personal property tax.
What is the natural-hazard risk in Clark County?
FEMA's National Risk Index rates Clark County as "Relatively Low" (score 22).
What are industrial electricity rates in Clark County?
Average industrial electricity is 8.45¢/kWh and commercial is 9.86¢/kWh in Clark County.
More in South Dakota
- All datacenter sites in South Dakota· 1,151 sites
- Operating datacenters in South Dakota
- Electric substations in South Dakota
- Minnehaha County· 95 sites · avg 58.1
- Day County· 82 sites · avg 51.9
- Pennington County· 58 sites · avg 59.7
- Beadle County· 51 sites · avg 55.1
- Charles Mix County· 40 sites · avg 53.4
- Brown County· 37 sites · avg 57.4
- Substation-Adjacent sites in South Dakota
- Former Mine sites in South Dakota
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 Clark County, South Dakota”, https://gridcensus.com/datacenter-sites/south-dakota/clark-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 Clark County, South Dakota 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.