Datacenter Sites in Clinton County, Iowa
Clinton County has 118 scored datacenter candidate sites averaging 54.2/100 DC Readiness, with a catalogued aggregate of 2,500 MW. FEMA rates local natural-hazard risk as "Relatively Moderate". The county has a datacenter tax incentive on record.
At a glance
Clinton County, Iowa has 118 scored datacenter candidate sites averaging 54.2/100 DC Readiness, roughly in line with the Iowa average of 56.3. It ranks 3rd of 85 Iowa counties by number of sites and 69th by average score. The top-scoring site is ROCK CREEK at 65.9/100.
Site-selection context for Clinton County
Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.
How does Clinton County compare with other counties in Iowa?
By number of scored sites, Clinton County ranks 3rd of the 85 Iowa counties with a county page, holding 4.6% of the state's 2,572 sites. Its average DC Readiness of 54.2/100 ranks 69th in the state and is roughly in line with the national average of 53.0. Nationally it has the 263rd-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 17 score 55 or higher.
What types of datacenter sites are in Clinton County?
Industrial sites are the most common (87, 74% of the county's inventory), followed by former mine (11) and greenfield (11). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.
What are power cost, hazard, water and fiber conditions in Clinton County?
Industrial electricity averages 7.86¢/kWh and commercial 12.32¢/kWh. FEMA's National Risk Index rates the county "Relatively Moderate" (30). WRI water stress is low. 14 fiber providers report service in the county. The climate runs 900 cooling degree days a year with a mean temperature of 48°F. Land is valued around $9,600 an acre.
By site type
Top datacenter sites in Clinton County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| ROCK CREEK | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 65.9 |
| UNKNOWN122188 | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 65.1 |
| QUAD CITIES | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 65.1 |
| UNKNOWN131376 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 62.1 |
| DEWITT | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 60.3 |
| CALAMUS | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 60.1 |
| UNKNOWN131582 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 59.9 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.3 yrs | 59.7 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.3 yrs | 59.6 |
| EAST CALAMUS | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 59.5 |
| OZ Clinton | Greenfield | — | — | 4.3 yrs | 59.0 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.3 yrs | 58.8 |
| UNKNOWN122187 | Substation-Adjacent | 161 kV | 100 MW | 4.8 yrs | 58.7 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.7 yrs | 57.8 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.7 yrs | 57.7 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.7 yrs | 57.3 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.3 yrs | 56.5 |
| EC Near Milton L Kapp | Greenfield | — | — | 4.7 yrs | 54.0 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.4 |
| Mine Site | Former Mine | — | — | 4.3 yrs | 53.3 |
Every scored site in Clinton County
All 118 sites, best first.
- ROCK CREEK · 65.9
- QUAD CITIES · 65.1
- Substation-Adjacent site · d5f02044 · 65.1
- Substation-Adjacent site · be30a465 · 62.1
- DEWITT · 60.3
- CALAMUS · 60.1
- Substation-Adjacent site · 37d4d3d3 · 59.9
- EC Near Milton L Kapp · 93416759 · 59.7
- EC Near Milton L Kapp · 70c6f175 · 59.6
- EAST CALAMUS · 59.5
- OZ Clinton · 59.0
- EC Near Milton L Kapp · 4a1febdb · 58.8
- Substation-Adjacent site · 43342ab7 · 58.7
- EC Near Milton L Kapp · a25b2ae4 · 57.8
- EC Near Milton L Kapp · 8477f9b1 · 57.7
- EC Near Milton L Kapp · be3c8ce6 · 57.3
- EC Near Milton L Kapp · 77aa12b8 · 56.5
- EC Near Milton L Kapp · de90a91a · 54.0
- Mine Site · fd50bb8b · 53.4
- Mine Site · 1417023b · 53.4
- Mine Site · 1ffd8a65 · 53.4
- Mine Site · 1b5c5c5b · 53.4
- Mine Site · 225b7cc5 · 53.4
- Mine Site · e60d72b6 · 53.4
- Mine Site · 76e21567 · 53.3
- Cornhusker Partners LLC Clinton Super Wash South · 53.3
- Old Town Family Restaurant · 207a2081 · 53.3
- Keis Property - 2421 Camanche Avenue · 53.3
- Robert Dirks Property · 53.3
- 1802 Camanche Ave. · 53.3
- Smith Property - 2309-2319 Camanche Avenue · 53.3
- Bentler Properties · 53.3
- East Iowa Auto · 53.3
- Mine Site · 06d67e63 · 53.3
- Keis Properties - 2401 Camanche Avenue · 53.3
- 546 Liberty Avenue · 53.3
- ADM South Switch Yard · 53.3
- Keis Properties - 2346 Liberty Avenue · 53.3
- 652 19th Avenue South · 53.3
- Joy Mangler Properties · 53.3
- Keis Properties - 116 24th Place · 53.3
- Leslie Properties · 53.3
- Clinton Alignment and Brakes · 53.3
- David Hugunin Property · 53.3
- Keis Properties - 111 25th Place · 53.3
- Van Zuiden Property · 53.3
- Keis Properties - 2400 Liberty Avenue · 53.3
- DeeBees LLC · 53.3
- SMC Properties · e1b7f00e · 53.3
- Ross Motors · 53.3
- Union Pacific Railroad Property · 53.3
- Foster Property · 53.3
- Mussman Property 2325 Camanche Avenue · 53.3
- Sullens Property · 53.3
- Erickson Property - 2524 Liberty Avenue · 53.3
- Benson Oil Company · 53.3
- Leslie Property · 53.3
- 501 - 585 Liberty Avenue · 53.3
- Old Town Family Restaurant · 596681dc · 53.3
- Former Benson Oil Company Property · 53.3
- Doro Inc. · 53.3
- Bennett Dry Cleaners · 53.3
- Former Fire Station · 53.3
- J & M Realty Holdings LLC · 53.3
- Napa Auto Parts Store · 53.3
- Erickson Property 2564-68 Liberty Avenue · 53.3
- Keis Properties - 2410 Liberty Avenue · 53.3
- Bentler Equipment Rental and Sales · 53.3
- Exotic Pets · 53.3
- Powell Property - 2549 Camanche Avenue · 53.3
- Johnson Trust Building · 53.2
- Charles and Barbara Westbrook Property · 53.2
- Dairy Queen Property · 53.2
- Liphardt Property · 53.2
- 502 17th Avenue South · 53.2
- Deering Properties - 1239 Camanche Avenue · 53.2
- 679 18th Avenue South · 53.2
- 411 & 415 11th Avenue South · 53.2
- SMC Properties · 25663865 · 53.2
- 1800-1824 South 4th Street · 53.2
- ICERR Siding · 53.2
- 502 18th Avenue South · 53.2
- ICERR Mainline · 53.2
- Former Rail Depot · 53.2
- 503 16th Avenue South · 53.2
- 1004 S 4th St · 53.2
- Delbert and Colleen Temple Properties · 53.2
- 503 18th Avenue South · 53.2
- Joseph Rajcevich Property · 53.2
- Former KFC / Robert Weaver Property · 53.2
- Family Dollar Store · 53.2
- Bossen Properties · 53.2
- 1006-1008 S 4th St · 53.2
- UPRR Mainline · 53.2
- 1704 South 5th Street · 53.2
- 1201 Camanche Avenue · 53.2
- 1000 S 4th St · 53.2
- 1201 South 5th Street · 53.2
- 501 15th Avenue South · 53.2
- 1002 S 4th St · 53.2
- Irving School · 53.2
- CPRR Main Line · 53.2
- Former Dry Cleaning Facility · 53.1
- Union Pacific · 53.1
- Wilson building · 53.1
- 301 5th Ave S · 53.1
- 480 S 3rd St, Former YMCA · 53.1
- Properties 35-59 · 53.1
- Properties 3-34 · 53.1
- 227-229 3rd Ave N · 53.0
- Clinton Community School District · 53.0
- Deering Properties - 1115 & 1117 Camanche Avenue · 52.7
- Mine Site · f00df4a2 · 52.6
- Deering Properties - 1131 & 1133 Camanche Avenue · 52.6
- Mine Site · d7b6c9fb · 52.5
- Mine Site · 2b97db5c · 52.5
- EC Near Archer Daniels Midland Clinton · 52.2
- Greenfield (MAQUOKETA - UNKNOWN131582) · 52.2
Clinton County datacenter FAQ
How many datacenter sites are in Clinton County?
118 scored datacenter candidate sites, averaging 54.2/100 DC Readiness. That is the 3rd-most of 85 Iowa counties with five or more sites.
What is the highest-scoring datacenter site in Clinton County?
ROCK CREEK scores 65.9/100 DC Readiness, the highest of the 118 scored sites in Clinton County (a substation-adjacent site).
Does Clinton 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 Clinton County?
FEMA's National Risk Index rates Clinton County as "Relatively Moderate" (score 30).
What are industrial electricity rates in Clinton County?
Average industrial electricity is 7.86¢/kWh and commercial is 12.32¢/kWh in Clinton County.
More in Iowa
- All datacenter sites in Iowa· 2,572 sites
- Operating datacenters in Iowa
- Electric substations in Iowa
- Black Hawk County· 126 sites · avg 58.4
- Pottawattamie County· 123 sites · avg 57.0
- Johnson County· 112 sites · avg 57.9
- Linn County· 105 sites · avg 58.3
- Dubuque County· 101 sites · avg 55.8
- Woodbury County· 94 sites · avg 58.0
- Industrial sites in Iowa
- Former Mine sites in Iowa
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 November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Clinton County, Iowa”, https://gridcensus.com/datacenter-sites/iowa/clinton-county (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Clinton County, Iowa is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.