Datacenter Sites in Union County, Iowa
Union County has 16 scored datacenter candidate sites averaging 60.3/100 DC Readiness, with a catalogued aggregate of 927 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
16
Candidate sites
60.3/100
Avg DC Readiness
927 MW
Catalogued capacity
theoretical aggregate
Relatively Moderate
Hazard rating
Site-selection context for Union County
Yessales_tax_exemption
Datacenter tax incentive
13.42¢/kWh
Commercial electricity
8.19¢/kWh
Industrial electricity
7
Fiber providers
Low
Water stress
$5,970
Land price / acre
900
Cooling degree days
6,500
Heating degree days
48°F
Mean annual temp
Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.
By site type
Top datacenter sites in Union County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| Greenfield (ROLLING HILLS - MADISON COUNTY) | Greenfield | 345 kV | 600 MW | 1.4 yrs | 66.3 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 61.1 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 60.9 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 60.7 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 60.7 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 60.7 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 60.6 |
| OZ Union | Greenfield | — | — | 1.4 yrs | 60.5 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 60.1 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 59.8 |
| Greenfield (CRESTON - UNKNOWN131419) | Greenfield | 161 kV | 100 MW | 1.4 yrs | 59.7 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 59.7 |
| EC Near Summit Lake | Greenfield | — | — | 1.4 yrs | 59.2 |
| Summit Lake | Brownfield | — | 27 MW | 1.4 yrs | 59.1 |
| Greenfield (UNKNOWN117366 - CRESTON) | Greenfield | 161 kV | 100 MW | 1.4 yrs | 58.9 |
| Greenfield (UNKNOWN117366 - CRESTON) | Greenfield | 161 kV | 100 MW | 1.4 yrs | 56.0 |
Union County datacenter FAQ
- How many datacenter sites are in Union County?
- 16 scored datacenter candidate sites, averaging 60.3/100 DC Readiness.
- Does Union County offer datacenter tax incentives?
- Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.
- What is the natural-hazard risk in Union County?
- FEMA's National Risk Index rates Union County as "Relatively Moderate" (score 30).
- What are industrial electricity rates in Union County?
- Average industrial electricity is 8.19¢/kWh and commercial is 13.42¢/kWh in Union County.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Union County, Iowa. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.