Greenfield Datacenter Sites in Iowa
Iowa has 1,018 greenfield datacenter candidate sites. Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
1,018
Greenfield sites
70.3/100
Avg score (top 25)
Iowa
State
Greenfield
Type
Top greenfield sites in Iowa
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| Greenfield (SYCAMORE - BONDURANT) | Greenfield | Polk County | 345 kV | 600 MW | 1.4 yrs | 74.1 |
| Greenfield (MONTEZUMA SWITCHING STATION - ) | Greenfield | Jasper County | 345 kV | 600 MW | 1.4 yrs | 71.4 |
| Greenfield (HAZLETON - ARNOLD) | Greenfield | Benton County | 345 kV | 600 MW | 1.4 yrs | 71.3 |
| Greenfield (KOSSUTH - O'BRIEN) | Greenfield | Clay County | 345 kV | 600 MW | 1.4 yrs | 71.2 |
| Greenfield (KOSSUTH - O'BRIEN) | Greenfield | Clay County | 345 kV | 600 MW | 1.4 yrs | 70.8 |
| Greenfield (BLACK HAWK - HAZLETON) | Greenfield | Black Hawk County | 345 kV | 600 MW | 1.4 yrs | 70.8 |
| Greenfield (BLACK HAWK - HAZLETON) | Greenfield | Buchanan County | 345 kV | 600 MW | 1.4 yrs | 70.7 |
| Greenfield (UNKNOWN131382 - SUB 91) | Greenfield | Scott County | 345 kV | 600 MW | 1.4 yrs | 70.4 |
| Greenfield (HILLS - SUB T) | Greenfield | Johnson County | 345 kV | 600 MW | 1.4 yrs | 70.4 |
| Greenfield (MADISON COUNTY - NORWALK) | Greenfield | Warren County | 345 kV | 600 MW | 1.4 yrs | 70.3 |
| Greenfield (UNKNOWN130487 - TWIN CHURCH) | Greenfield | Plymouth County | 230 kV | 300 MW | 1.0 yrs | 70.1 |
| Greenfield (SALEM - HAZLETON) | Greenfield | Dubuque County | 345 kV | 600 MW | 1.4 yrs | 70.1 |
| Greenfield (GRIMES - UNKNOWN173441) | Greenfield | Dallas County | 345 kV | 600 MW | 1.4 yrs | 70.1 |
| Greenfield (MONTEZUMA SWITCHING STATION - ) | Greenfield | Johnson County | 345 kV | 600 MW | 1.4 yrs | 70.0 |
| Greenfield (UNKNOWN137755 - GRIMES) | Greenfield | Dallas County | 345 kV | 600 MW | 3.5 yrs | 69.9 |
| Greenfield (SALEM - HAZLETON) | Greenfield | Dubuque County | 345 kV | 600 MW | 1.4 yrs | 69.9 |
| Greenfield (MONTEZUMA SWITCHING STATION - ) | Greenfield | Johnson County | 345 kV | 600 MW | 1.4 yrs | 69.8 |
| Greenfield (PIONEER PRAIRIE PHASE I - HAZL) | Greenfield | Fayette County | 345 kV | 600 MW | 1.4 yrs | 69.8 |
| Greenfield (KOSSUTH - O'BRIEN) | Greenfield | Palo Alto County | 345 kV | 600 MW | 1.4 yrs | 69.7 |
| Greenfield (SIOUX CITY - RAUN) | Greenfield | Woodbury County | 345 kV | 600 MW | 3.5 yrs | 69.7 |
| Greenfield (SIOUX CITY - RAUN) | Greenfield | Woodbury County | 345 kV | 600 MW | 3.5 yrs | 69.7 |
| Greenfield (UNKNOWN131416 - ROLLING HILLS) | Greenfield | Mills County | 345 kV | 600 MW | 3.5 yrs | 69.7 |
| Greenfield (LEHIGH - WEBSTER) | Greenfield | Webster County | 345 kV | 600 MW | 1.4 yrs | 69.6 |
| Greenfield (KOSSUTH - O'BRIEN) | Greenfield | Clay County | 345 kV | 600 MW | 1.4 yrs | 69.5 |
| Greenfield (UNKNOWN138106 - RAUN) | Greenfield | Woodbury County | 345 kV | 600 MW | 3.5 yrs | 69.3 |
- How many greenfield datacenter sites are in Iowa?
- GridCensus catalogs 1,018 greenfield datacenter candidate sites in Iowa.
- What is a greenfield datacenter site?
- Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
Dataset updated . Screening estimates derived from public data sources.
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This page shows a public slice of the GridCensus dataset for Greenfield sites in 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.