Datacenter Sites in Jefferson County, Illinois
Jefferson County has 25 scored datacenter candidate sites averaging 58.8/100 DC Readiness, with a catalogued aggregate of 4,700 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
25
Candidate sites
58.8/100
Avg DC Readiness
4,700 MW
Catalogued capacity
theoretical aggregate
Relatively High
Hazard rating
Site-selection context for Jefferson County
Yessales_tax_exemption
Datacenter tax incentive
10.60¢/kWh
Commercial electricity
5.82¢/kWh
Industrial electricity
5
Fiber providers
Low
Water stress
$4,940
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 Jefferson County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| OZ Jefferson | Greenfield | — | — | 4.6 yrs | 59.4 |
| WEST MOUNT VERNON | Substation-Adjacent | 345 kV | 600 MW | 3.8 yrs | 58.7 |
| EC Coal Jefferson County | Greenfield | — | — | 4.6 yrs | 58.1 |
| EC Coal Jefferson County | Greenfield | — | — | 4.6 yrs | 56.8 |
| EC Coal Jefferson County | Greenfield | — | — | 4.6 yrs | 53.3 |
| TAP162321 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 52.8 |
| TAP173562 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 52.8 |
| UNKNOWN162320 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 52.8 |
| INA | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 52.8 |
| UNKNOWN153321 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 52.8 |
| Mine Site | Former Mine | — | — | 3.8 yrs | 50.8 |
| Mine Site | Former Mine | — | — | 3.8 yrs | 50.8 |
| Mine Site | Former Mine | — | — | 3.8 yrs | 50.7 |
| MOUNT VERNON ILLINOIS | Federal Excess | — | — | 3.8 yrs | 50.6 |
| Greenfield (ASHLEY - TAP173563) | Greenfield | 138 kV | 100 MW | 3.8 yrs | 47.3 |
| Greenfield (CENTRALIA - WEST MOUNT VERNON) | Greenfield | 138 kV | 100 MW | 3.8 yrs | 47.3 |
Jefferson County datacenter FAQ
- How many datacenter sites are in Jefferson County?
- 25 scored datacenter candidate sites, averaging 58.8/100 DC Readiness.
- Does Jefferson 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 Jefferson County?
- FEMA's National Risk Index rates Jefferson County as "Relatively High" (score 35).
- What are industrial electricity rates in Jefferson County?
- Average industrial electricity is 5.82¢/kWh and commercial is 10.60¢/kWh in Jefferson 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 Jefferson 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.