12554 437th Avenue
IndustrialDay County, South Dakota · MISO
At a glance
12554 437th Avenue is an industrial datacenter candidate site in Day County, South Dakota, scoring 50.6/100 DC Readiness — 60th of 82 scored sites in the county. It sits in the MISO grid region and the NORTHWESTERN ENERGY - (SD) service territory, where interconnection has averaged 4.3 years from request to operation.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: No state corporate income tax; no personal income tax; no personal property tax.
Site location
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How does 12554 437th Avenue compare with other sites in Day County?
12554 437th Avenue ranks 60th of 82 scored candidate sites in Day County. Its 50.6/100 is roughly in line with the county average of 51.9. It is roughly in line with the South Dakota average of 54.7 and roughly in line with the national average of 53.2.
Against the South Dakota average, its strongest sub-score is natural hazard (78 vs 77) and its weakest is power availability (30 vs 39). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is 12554 437th Avenue to power, fiber and other datacenters?
The nearest located transmission bottleneck is FORMAN_FORMAN_115kV_TIE_FLO_HANKSON_WAHPETON_230 (MISO), 38 miles away. For connectivity, the nearest internet exchange facility is ELN02 at 61.5 miles. 3 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Datacenter 1422191471, 61.6 miles away.
What are the flood, water and hazard risks at 12554 437th Avenue?
At the county level, FEMA's National Risk Index rates Day County "Relatively Low".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Day County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN159679 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.9 |
| TAP159616 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.9 |
| EC Near Webster IC | Greenfield | — | — | 4.3 yrs | 57.8 |
| UNKNOWN131133 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.7 |
| TAP159543 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.6 |
| TAP159554 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.5 |
| TAP143513 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 57.4 |
| EC Near Webster IC | Greenfield | — | — | 4.3 yrs | 57.2 |
12554 437th Avenue: common questions
What is the DC Readiness score of 12554 437th Avenue?
12554 437th Avenue scores 50.6/100 on the GridCensus DC Readiness scale, rated fair. It ranks 60th of 82 scored sites in Day County. The Day County average is 51.9 and the South Dakota average is 54.7.
Which electric utility serves 12554 437th Avenue?
NORTHWESTERN ENERGY - (SD) (investor owned) holds the retail service territory that contains the site; its holding company is NORTHWESTERN ENERGY.
What grid region is 12554 437th Avenue in?
12554 437th Avenue is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is 12554 437th Avenue from an internet exchange?
The nearest internet exchange facility is ELN02, about 61.5 miles away; 3 fiber providers report service at the location.
Related pages
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 October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “12554 437th Avenue, Day County, SD”, https://gridcensus.com/datacenter-sites/south-dakota/day-county/12554-437th-avenue-08960ff8 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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