Datacenter Sites in St. Clair County, Illinois
St. Clair County has 100 scored datacenter candidate sites averaging 54.8/100 DC Readiness, with a catalogued aggregate of 2,813 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
100
Candidate sites
54.8/100
Avg DC Readiness
2,813 MW
Catalogued capacity
theoretical aggregate
Relatively High
Hazard rating
Site-selection context for St. Clair County
Yessales_tax_exemption
Datacenter tax incentive
9.18¢/kWh
Commercial electricity
3.59¢/kWh
Industrial electricity
10
Fiber providers
Low
Water stress
$9,310
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 St. Clair County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| OZ St. Clair | Greenfield | — | — | 4.6 yrs | 64.3 |
| TURKEY HILL | Substation-Adjacent | 345 kV | 600 MW | 3.8 yrs | 64.2 |
| Belleville Landfill Project | Brownfield | 138 kV | 13 MW | 3.8 yrs | 64.0 |
| UNKNOWN157809 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 59.5 |
| TAP156135 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 59.5 |
| PORTER RD | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 59.4 |
| S BELLEVILLE | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 59.2 |
| E BELLEVILLE | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 59.2 |
| Greenfield (TURKEY HILL - BALDWIN STATION) | Greenfield | 345 kV | 600 MW | 3.8 yrs | 57.7 |
| UNKNOWN169375 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 57.4 |
| UNKNOWN122425 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 57.3 |
| TAP156122 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 57.3 |
| UNKNOWN121695 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 57.1 |
| UNKNOWN122407 | Substation-Adjacent | 138 kV | 100 MW | 3.8 yrs | 56.7 |
| Greenfield (TAP139468 - CAHOKIA) | Greenfield | 230 kV | 300 MW | 3.8 yrs | 55.6 |
| Former Fire/Police Station | Industrial | — | — | 3.8 yrs | 55.1 |
| ACF Site | Industrial | — | — | 3.8 yrs | 55.1 |
| Former Broadview Hotel | Industrial | — | — | 3.8 yrs | 55.1 |
| Former Broadview Hotel update | Industrial | — | — | 3.8 yrs | 55.1 |
| 135 N. Fifth Str. | Industrial | — | — | 3.8 yrs | 55.0 |
| Former Gas Station (15th and Missouri) | Industrial | — | — | 3.8 yrs | 55.0 |
| 413 Jefferson | Industrial | — | — | 3.8 yrs | 55.0 |
| 147 North Fifth Str. | Industrial | — | — | 3.8 yrs | 55.0 |
| MESD Property | Industrial | — | — | 3.8 yrs | 55.0 |
| Old D Service Station | Industrial | — | — | 3.8 yrs | 55.0 |
St. Clair County datacenter FAQ
- How many datacenter sites are in St. Clair County?
- 100 scored datacenter candidate sites, averaging 54.8/100 DC Readiness.
- Does St. Clair 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 St. Clair County?
- FEMA's National Risk Index rates St. Clair County as "Relatively High" (score 35).
- What are industrial electricity rates in St. Clair County?
- Average industrial electricity is 3.59¢/kWh and commercial is 9.18¢/kWh in St. Clair 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 St. Clair County, Illinois. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.