Former McKinley School
IndustrialMadison County, Illinois · MISO
At a glance
Former McKinley School is an industrial datacenter candidate site in Madison County, Illinois, scoring 53.8/100 DC Readiness — 65th of 112 scored sites in the county. It sits in the MISO grid region and the SOUTHWESTERN ELECTRIC COOP INC - (IL) service territory, where interconnection has averaged 4.8 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
New-DC state tax exemptions suspended for 2 years (from Jul 2026).
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
Site location
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How does Former McKinley School compare with other sites in Madison County?
Former McKinley School ranks 65th of 112 scored candidate sites in Madison County. Its 53.8/100 is roughly in line with the county average of 55.9. It is roughly in line with the Illinois average of 54.3 and roughly in line with the national average of 53.2.
Against the Illinois average, its strongest sub-score is fiber connectivity (84 vs 71) and its weakest is power availability (30 vs 37). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Former McKinley School to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is H5 Data Centers St. Louis (MO01) at 5.3 miles. 13 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is TierPoint, 5.5 miles away.
What are the flood, water and hazard risks at Former McKinley School?
At the county level, FEMA's National Risk Index rates Madison County "Relatively High".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Madison County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| STALLINGS | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 66.5 |
| ROXFORD | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 65.1 |
| UNKNOWN122139 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 63.3 |
| EC Near Venice | Greenfield | — | — | 4.8 yrs | 62.9 |
| EC Near Venice | Greenfield | — | — | 4.8 yrs | 62.7 |
| EC Near Venice | Greenfield | — | — | 4.8 yrs | 62.6 |
| EC Near Stallings | Greenfield | — | — | 4.8 yrs | 62.6 |
| EC Near Wood River | Greenfield | — | — | 4.8 yrs | 62.2 |
Former McKinley School: common questions
What is the DC Readiness score of Former McKinley School?
Former McKinley School scores 53.8/100 on the GridCensus DC Readiness scale, rated fair. It ranks 65th of 112 scored sites in Madison County. The Madison County average is 55.9 and the Illinois average is 54.3.
Which electric utility serves Former McKinley School?
SOUTHWESTERN ELECTRIC COOP INC - (IL) (cooperative) holds the retail service territory that contains the site.
What grid region is Former McKinley School in?
Former McKinley School is in the MISO region. Projects interconnecting there have averaged a 4.8-year wait from queue request to operation.
How far is Former McKinley School from an internet exchange?
The nearest internet exchange facility is H5 Data Centers St. Louis (MO01), about 5.3 miles away; 13 fiber providers report service at the location.
Related pages
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 October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Former McKinley School, Madison County, IL”, https://gridcensus.com/datacenter-sites/illinois/madison-county/former-mckinley-school-528e31af (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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