Datacenter Sites in Washington County, Illinois
Washington County has 18 scored datacenter candidate sites averaging 59.3/100 DC Readiness, with a catalogued aggregate of 3,500 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
18
Candidate sites
59.3/100
Avg DC Readiness
3,500 MW
Catalogued capacity
theoretical aggregate
Relatively High
Hazard rating
Site-selection context for Washington County
Yessales_tax_exemption
Datacenter tax incentive
10.47¢/kWh
Commercial electricity
5.48¢/kWh
Industrial electricity
3
Fiber providers
Low
Water stress
$8,068
Land price / acre
1,100
Cooling degree days
5,600
Heating degree days
52°F
Mean annual temp
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
By site type
Top datacenter sites in Washington County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN139507 | Substation-Adjacent | 345 kV | 600 MW | 4.6 yrs | 69.4 |
| PRAIRIE STATE STATION | Substation-Adjacent | 345 kV | 600 MW | 4.6 yrs | 67.3 |
| OKAWVILLE | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 64.5 |
| UNKNOWN122403 | Substation-Adjacent | 230 kV | 300 MW | 4.6 yrs | 64.1 |
| Greenfield (PRAIRIE STATE STATION - WEST M) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 62.9 |
| Greenfield (PRAIRIE STATE STATION - WEST M) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 62.5 |
| TAP139488 | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 62.5 |
| ASHLEY | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 61.8 |
| TAP139470 | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 61.8 |
| EC Coal Washington County | Greenfield | — | — | 4.6 yrs | 56.4 |
| TAP139487 | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 56.2 |
| EC Coal Washington County | Greenfield | — | — | 4.6 yrs | 56.1 |
| OZ Washington | Greenfield | — | — | 4.6 yrs | 55.9 |
| Greenfield (ASHLEY - TAP139487) | Greenfield | 138 kV | 100 MW | 4.6 yrs | 55.5 |
| UNKNOWN153323 | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 53.3 |
| EC Coal Washington County | Greenfield | — | — | 4.6 yrs | 53.2 |
| Greenfield (TAP139487 - TAP139488) | Greenfield | 138 kV | 100 MW | 4.6 yrs | 53.1 |
| EC FFE Washington County | Greenfield | — | — | 4.6 yrs | 51.4 |
Washington County datacenter FAQ
- How many datacenter sites are in Washington County?
- 18 scored datacenter candidate sites, averaging 59.3/100 DC Readiness.
- Does Washington County offer datacenter tax incentives?
- Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
- What is the natural-hazard risk in Washington County?
- FEMA's National Risk Index rates Washington County as "Relatively High" (score 35).
- What are industrial electricity rates in Washington County?
- Average industrial electricity is 5.48¢/kWh and commercial is 10.47¢/kWh in Washington 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 Washington County, Illinois. 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.