Substation-Adjacent Datacenter Sites in Iowa
Iowa has 761 substation-adjacent datacenter candidate sites. Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
761
Substation-Adjacent sites
67.2/100
Avg score (top 25)
Iowa
State
Substation-Adjacent
Type
Top substation-adjacent sites in Iowa
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| WALTER SCOTT ENERGY CENTER | Substation-Adjacent | Mills County | 345 kV | 600 MW | 2.8 yrs | 69.9 |
| UNKNOWN130427 | Substation-Adjacent | Dakota County | 345 kV | 600 MW | 2.8 yrs | 69.6 |
| BONDURANT | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 68.7 |
| GREATER DES MOINES ENERGY CENTER | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 68.5 |
| SE POLK | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 68.4 |
| UNKNOWN131416 | Substation-Adjacent | Mills County | 345 kV | 600 MW | 2.8 yrs | 68.4 |
| UNKNOWN137755 | Substation-Adjacent | Mills County | 345 kV | 600 MW | 2.8 yrs | 68.4 |
| UNKNOWN131382 | Substation-Adjacent | Scott County | 345 kV | 600 MW | 2.8 yrs | 67.6 |
| TIFFIN | Substation-Adjacent | Johnson County | 345 kV | 600 MW | 2.8 yrs | 67.5 |
| GRIMES | Substation-Adjacent | Dallas County | 345 kV | 600 MW | 2.8 yrs | 67.5 |
| SYCAMORE | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 67.4 |
| SIOUX CITY | Substation-Adjacent | Plymouth County | 345 kV | 600 MW | 2.8 yrs | 67.4 |
| BLACK HAWK | Substation-Adjacent | Black Hawk County | 345 kV | 600 MW | 2.8 yrs | 67.2 |
| UNKNOWN131604 | Substation-Adjacent | Scott County | 345 kV | 600 MW | 2.8 yrs | 67.1 |
| SUB 91 | Substation-Adjacent | Scott County | 345 kV | 600 MW | 2.8 yrs | 67.0 |
| UNKNOWN131605 | Substation-Adjacent | Rock Island County | 345 kV | 600 MW | 2.8 yrs | 66.7 |
| HILLS | Substation-Adjacent | Johnson County | 345 kV | 600 MW | 2.8 yrs | 66.6 |
| ARNOLD | Substation-Adjacent | Linn County | 345 kV | 600 MW | 2.8 yrs | 66.4 |
| NORWALK | Substation-Adjacent | Warren County | 345 kV | 600 MW | 2.8 yrs | 66.3 |
| HAZLETON | Substation-Adjacent | Buchanan County | 345 kV | 600 MW | 2.8 yrs | 66.1 |
| BOONEVILLE | Substation-Adjacent | Madison County | 345 kV | 600 MW | 2.8 yrs | 65.9 |
| ROCK CREEK | Substation-Adjacent | Clinton County | 345 kV | 600 MW | 2.8 yrs | 65.3 |
| RAUN | Substation-Adjacent | Dakota County | 345 kV | 600 MW | 2.8 yrs | 65.3 |
| UNKNOWN130433 | Substation-Adjacent | Dakota County | 345 kV | 600 MW | 2.8 yrs | 65.1 |
| O'BRIEN | Substation-Adjacent | O'Brien County | 345 kV | 600 MW | 2.8 yrs | 65.0 |
- How many substation-adjacent datacenter sites are in Iowa?
- GridCensus catalogs 761 substation-adjacent datacenter candidate sites in Iowa.
- What is a substation-adjacent datacenter site?
- Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
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 Substation-Adjacent sites in Iowa. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.