Datacenter Sites in Williamson County, Illinois
Williamson County has 70 scored datacenter candidate sites averaging 51.2/100 DC Readiness, with a catalogued aggregate of 3,800 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
70
Candidate sites
51.2/100
Avg DC Readiness
3,800 MW
Catalogued capacity
theoretical aggregate
Relatively High
Hazard rating
Site-selection context for Williamson County
Yessales_tax_exemption
Datacenter tax incentive
9.94¢/kWh
Commercial electricity
4.45¢/kWh
Industrial electricity
6
Fiber providers
Low
Water stress
$4,701
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 Williamson County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| WEST FRANKFORT | Substation-Adjacent | 230 kV | 300 MW | 4.6 yrs | 69.1 |
| UNKNOWN122133 | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 66.9 |
| MARION N | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 66.1 |
| HERRIN | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 66.0 |
| Greenfield (JOPPA - WEST FRANKFORT) | Greenfield | 230 kV | 300 MW | 4.6 yrs | 64.9 |
| Greenfield (SHAWNEE - WEST FRANKFORT EAST) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 64.5 |
| Greenfield (SHAWNEE - WEST FRANKFORT EAST) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 63.8 |
| UNKNOWN121872 | Substation-Adjacent | 161 kV | 100 MW | 4.6 yrs | 63.7 |
| UNKNOWN122346 | Substation-Adjacent | 161 kV | 100 MW | 4.6 yrs | 63.3 |
| TAP153316 | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 62.9 |
| CRAB ORCHARD | Substation-Adjacent | 138 kV | 100 MW | 4.6 yrs | 61.4 |
| Greenfield (SHAWNEE - WEST FRANKFORT EAST) | Greenfield | 345 kV | 600 MW | 4.6 yrs | 61.1 |
| EC FFE Williamson County | Greenfield | — | — | 4.6 yrs | 61.0 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 61.0 |
| Greenfield (JOPPA - WEST FRANKFORT) | Greenfield | 230 kV | 300 MW | 4.6 yrs | 60.7 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 60.6 |
| OZ Williamson | Greenfield | — | — | 4.6 yrs | 60.2 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 60.1 |
| Greenfield (UNKNOWN122133 - MAKANDA) | Greenfield | 138 kV | 100 MW | 4.6 yrs | 59.8 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 59.6 |
| EC Near Marion | Greenfield | — | — | 4.6 yrs | 59.3 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 58.8 |
| EC Coal Williamson County | Greenfield | — | — | 4.6 yrs | 58.6 |
| EC Near Marion | Greenfield | — | — | 4.6 yrs | 58.5 |
| MARION | Substation-Adjacent | 161 kV | 100 MW | 4.6 yrs | 58.2 |
Williamson County datacenter FAQ
- How many datacenter sites are in Williamson County?
- 70 scored datacenter candidate sites, averaging 51.2/100 DC Readiness.
- Does Williamson 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 Williamson County?
- FEMA's National Risk Index rates Williamson County as "Relatively High" (score 35).
- What are industrial electricity rates in Williamson County?
- Average industrial electricity is 4.45¢/kWh and commercial is 9.94¢/kWh in Williamson 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 Williamson 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.