Datacenter Sites in Iowa
Iowa has 2,493 scored datacenter candidate sites averaging 59.9/100 DC Readiness. Greenfield parcels lead the inventory (1,018 sites). Most sites interconnect through MISO. The state's candidate sites carry a catalogued aggregate of 193.2k MW and average a 1.6 yrs interconnection-queue wait.
2,493
Candidate sites
59.9/100
Avg DC Readiness
193.2k MW
Catalogued capacity
theoretical aggregate
1.6 yrs
Avg queue wait
By site type
- Greenfield1,018
- Industrial928
- Substation-Adjacent282
- Former Mine200
- Brownfield54
- Shovel-Ready11
Average sub-score profile
How Iowa's candidate sites score on each DC Readiness dimension (0–100 average).
Power availability
34.9
Speed-to-power
50.4
Fiber
77.2
Water
88.0
Hazard resilience
67.8
Top 25 datacenter sites in Iowa
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| WALTER SCOTT ENERGY CENTER | Substation-Adjacent | Mills County | 345 kV | 600 MW | 2.8 yrs | 70.7 |
| BONDURANT | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 70.2 |
| GREATER DES MOINES ENERGY CENTER | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 69.5 |
| SE POLK | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 69.4 |
| UNKNOWN131416 | Substation-Adjacent | Mills County | 345 kV | 600 MW | 2.8 yrs | 69.2 |
| UNKNOWN137755 | Substation-Adjacent | Mills County | 345 kV | 600 MW | 2.8 yrs | 69.2 |
| UNKNOWN131382 | Substation-Adjacent | Scott County | 345 kV | 600 MW | 2.8 yrs | 69.0 |
| SYCAMORE | Substation-Adjacent | Polk County | 345 kV | 600 MW | 2.8 yrs | 68.7 |
| TIFFIN | Substation-Adjacent | Johnson County | 345 kV | 600 MW | 2.8 yrs | 68.7 |
| GRIMES | Substation-Adjacent | Dallas County | 345 kV | 600 MW | 2.8 yrs | 68.6 |
| UNKNOWN130427 | Substation-Adjacent | Dakota County | 345 kV | 600 MW | 2.8 yrs | 68.5 |
| Alliant SBD 9302 Aegon NP | Brownfield | Linn | — | 1 MW | 2.8 yrs | 68.4 |
| BLACK HAWK | Substation-Adjacent | Black Hawk County | 345 kV | 600 MW | 2.8 yrs | 68.3 |
| EC Near University of Iowa Main Power Plant | Greenfield | Johnson | — | — | 1.4 yrs | 68.2 |
| OZ Polk | Greenfield | Polk | — | — | 1.4 yrs | 68.1 |
| OZ Woodbury | Greenfield | Woodbury | — | — | 1.4 yrs | 68.0 |
| SIOUX CITY | Substation-Adjacent | Plymouth County | 345 kV | 600 MW | 2.8 yrs | 68.0 |
| EC Coal Scott County | Greenfield | Scott County | — | — | 1.4 yrs | 67.9 |
| EC Near Iowa State University | Greenfield | Story | — | — | 1.4 yrs | 67.8 |
| SUB 91 | Substation-Adjacent | Scott County | 345 kV | 600 MW | 2.8 yrs | 67.8 |
| UNKNOWN131604 | Substation-Adjacent | Scott County | 345 kV | 600 MW | 2.8 yrs | 67.7 |
| OZ Black Hawk | Greenfield | Black Hawk | — | — | 1.4 yrs | 67.7 |
| EC Coal Woodbury County | Greenfield | Woodbury County | — | — | 1.4 yrs | 67.6 |
| EC Near Iowa State University | Greenfield | Story | — | — | 1.4 yrs | 67.6 |
| EC Near Riverside | Greenfield | Scott | — | — | 1.4 yrs | 67.5 |
Counties in Iowa
85 counties with five or more scored sites.
Black Hawk County133 · 60.2Clinton County122 · 56.3Johnson County120 · 59.9Pottawattamie County119 · 59.4Linn County105 · 61.5Dallas County96 · 57.1Webster County94 · 57.4Woodbury County94 · 61.1Dubuque County90 · 58.3Polk County81 · 64.1Marshall County74 · 55.8Scott County69 · 62.0Muscatine County64 · 59.9Wapello County50 · 53.8Story County48 · 62.0Des Moines County39 · 56.0Poweshiek38 · 60.1Adair37 · 59.1Mahaska County37 · 56.5Fayette County30 · 56.9Bremer29 · 61.0Cedar29 · 61.5Jackson County29 · 58.2Allamakee28 · 58.9Delaware28 · 60.8Cass County27 · 60.5Lee27 · 57.0Clayton25 · 56.8Madison County22 · 65.0Plymouth County22 · 68.0Appanoose21 · 57.9Marion21 · 56.8Cerro Gordo County20 · 66.5Iowa County20 · 61.4O'Brien County20 · 62.6Buena Vista19 · 59.9Henry County19 · 59.7Cherokee County18 · 57.4Kossuth18 · 60.3Warren18 · 64.5Adams17 · 62.0Boone County17 · 64.4Jasper County17 · 64.0Dickinson County16 · 61.7Tama County16 · 59.6Union County16 · 60.4Clay County15 · 65.4Emmet15 · 61.3Winnebago County15 · 61.1Benton County13 · 63.4Mills County13 · 71.3Winneshiek County13 · 53.0Worth County13 · 65.4Chickasaw County12 · 59.9Hardin County12 · 62.0Sac County12 · 60.8Buchanan County11 · 66.2Greene County11 · 60.6Mitchell County11 · 57.9Page County11 · 64.1Palo Alto County11 · 60.0Floyd County10 · 60.0Lyon County10 · 69.9Guthrie County9 · 59.4Carroll County8 · 59.5Crawford County8 · 61.6Grundy County8 · 59.6Hancock County8 · 62.1Humboldt County8 · 65.0Ida County8 · 62.8Louisa County8 · 60.0Sioux County8 · 60.7Franklin County7 · 66.5Jones County7 · 60.0Shelby County7 · 62.2Wright County7 · 59.2Calhoun County6 · 65.9Howard County6 · 57.3Jefferson County6 · 58.3Monroe County6 · 56.3Montgomery County6 · 62.0Osceola County6 · 57.9Taylor County6 · 58.3Washington County6 · 62.0Pocahontas County5 · 61.5
Iowa datacenter site selection FAQ
- How many datacenter sites are in Iowa?
- GridCensus catalogs 2,493 scored datacenter candidate sites in Iowa, with an average DC Readiness score of 59.9/100.
- What is the average interconnection-queue wait in Iowa?
- Candidate sites in Iowa average a 1.6 yrs interconnection-queue wait, with an average queue depth of 22 projects.
- What kind of datacenter sites are most common in Iowa?
- Greenfield sites are the most common category in Iowa (1,018 sites), and most sites fall within the MISO grid region.
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 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.