Datacenter Sites in Roberts County, South Dakota
Roberts County has 23 scored datacenter candidate sites averaging 52.7/100 DC Readiness, with a catalogued aggregate of 600 MW. FEMA rates local natural-hazard risk as "Relatively Low". The county has a datacenter tax incentive on record.
At a glance
Roberts County, South Dakota has 23 scored datacenter candidate sites averaging 52.7/100 DC Readiness, roughly in line with the South Dakota average of 54.7. It ranks 15th of 52 South Dakota counties by number of sites and 39th by average score. The top-scoring site is Substation-Adjacent site · 6856551a at 60.9/100.
Site-selection context for Roberts County
Incentive detail: No state corporate income tax; no personal income tax; no personal property tax.
How does Roberts County compare with other counties in South Dakota?
By number of scored sites, Roberts County ranks 15th of the 52 South Dakota counties with a county page, holding 2.0% of the state's 1,151 sites. Its average DC Readiness of 52.7/100 ranks 39th in the state and is roughly in line with the national average of 53.0. Nationally it has the 1558th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 2 score 55 or higher.
What types of datacenter sites are in Roberts County?
Industrial sites are the most common (10, 43% of the county's inventory), followed by substation-adjacent (7) and former mine (5). 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 Roberts County?
FEMA's National Risk Index rates the county "Relatively Low" (22). WRI water stress is low-medium. 7 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 $4,089 an acre.
By site type
Top datacenter sites in Roberts County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN131144 | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 60.9 |
| OZ Roberts | Greenfield | — | — | 4.3 yrs | 59.2 |
| UNKNOWN167822 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 54.9 |
| UNKNOWN167819 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 54.7 |
| UNKNOWN167826 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 54.7 |
| TAP167821 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 54.7 |
| TAP167824 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 54.7 |
| UNKNOWN133747 | Substation-Adjacent | 69 kV | 50 MW | 4.3 yrs | 54.3 |
| 1st Ave and Cherry St | Industrial | — | — | 4.3 yrs | 51.2 |
| Carnegie Library | Industrial | — | — | 4.3 yrs | 51.2 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 51.1 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 51.1 |
| Tekakwitha Vicarage Property | Industrial | — | — | 4.3 yrs | 51.1 |
| Long Hollow Open Dump West | Industrial | — | — | 4.3 yrs | 51.1 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 51.0 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 50.8 |
| Long Hollow Open Dump East | Industrial | — | — | 4.3 yrs | 50.8 |
| Tiospa Zina Former High School and Grade School | Industrial | — | — | 4.3 yrs | 50.8 |
| Tekakwitha Old Orphanage/ Boarding School Complex | Industrial | — | — | 4.3 yrs | 50.7 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 50.7 |
| Air Force Base Duplex | Industrial | — | — | 4.3 yrs | 50.7 |
| Tiospa Zina Former High School and Grade School | Industrial | — | — | 4.3 yrs | 50.7 |
| Little Minnesota Open Dump | Industrial | — | — | 4.3 yrs | 50.6 |
Every scored site in Roberts County
All 23 sites, best first.
- Substation-Adjacent site · 6856551a · 60.9
- OZ Roberts · 59.2
- Substation-Adjacent site · eb04a70e · 54.9
- Substation-Adjacent site · 83e0e2b3 · 54.7
- Substation-Adjacent site · 5cd77002 · 54.7
- Substation-Adjacent site · 57f17b12 · 54.7
- Substation-Adjacent site · 5d2b8003 · 54.7
- Substation-Adjacent site · 31dfb350 · 54.3
- 1st Ave and Cherry St · 51.2
- Carnegie Library · 51.2
- Mine Site · e25be80b · 51.1
- Mine Site · 6a80b4a4 · 51.1
- Tekakwitha Vicarage Property · 51.1
- Long Hollow Open Dump West · 51.1
- Mine Site · a3928699 · 51.0
- Mine Site · 065b2cfc · 50.8
- Long Hollow Open Dump East · 50.8
- Tiospa Zina Former High School and Grade School · bf82e6e8 · 50.8
- Tekakwitha Old Orphanage/ Boarding School Complex · 50.7
- Mine Site · 188c7a6d · 50.7
- Air Force Base Duplex · 50.7
- Tiospa Zina Former High School and Grade School · e72cbe0f · 50.7
- Little Minnesota Open Dump · 50.6
Roberts County datacenter FAQ
How many datacenter sites are in Roberts County?
23 scored datacenter candidate sites, averaging 52.7/100 DC Readiness. That is the 15th-most of 52 South Dakota counties with five or more sites.
What is the highest-scoring datacenter site in Roberts County?
Substation-Adjacent site · 6856551a scores 60.9/100 DC Readiness, the highest of the 23 scored sites in Roberts County (a substation-adjacent site).
Does Roberts 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 Roberts County?
FEMA's National Risk Index rates Roberts County as "Relatively Low" (score 22).
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
- Industrial sites in South Dakota
- Substation-Adjacent 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 Roberts County, South Dakota”, https://gridcensus.com/datacenter-sites/south-dakota/roberts-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 Roberts 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.