Datacenter Sites in Effingham County, Illinois
Effingham County has 10 scored datacenter candidate sites averaging 53.4/100 DC Readiness, with a catalogued aggregate of 300 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
At a glance
Effingham County, Illinois has 10 scored datacenter candidate sites averaging 53.4/100 DC Readiness, roughly in line with the Illinois average of 53.6. It ranks 74th of 101 Illinois counties by number of sites and 67th by average score. The top-scoring site is EC Coal Effingham County · bde29ceb at 58.1/100.
Site-selection context for Effingham County
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
How does Effingham County compare with other counties in Illinois?
By number of scored sites, Effingham County ranks 74th of the 101 Illinois counties with a county page, holding 0.3% of the state's 3,641 sites. Its average DC Readiness of 53.4/100 ranks 67th in the state and is roughly in line with the national average of 53.0. Nationally it has the 2409th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 6 score 55 or higher.
What types of datacenter sites are in Effingham County?
Greenfield sites are the most common (5, 50% of the county's inventory), followed by federal excess (2) and substation-adjacent (2). Site type reflects how the parcel was identified — next to a substation, on a former mine or brownfield, on industrial or federal excess land — and is scored on the same 14 factors either way.
What are power cost, hazard, water and fiber conditions in Effingham County?
Industrial electricity averages 7.97¢/kWh and commercial 10.91¢/kWh. FEMA's National Risk Index rates the county "Relatively High" (35). WRI water stress is low. 5 fiber providers report service in the county. The climate runs 1,100 cooling degree days a year with a mean temperature of 52°F. Land is valued around $7,723 an acre.
By site type
Top datacenter sites in Effingham County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EC Coal Effingham County | Greenfield | — | — | 4.8 yrs | 58.1 |
| EC Coal Effingham County | Greenfield | — | — | 4.8 yrs | 56.3 |
| TAP139403 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 55.8 |
| UNKNOWN122053 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 55.7 |
| OZ Effingham | Greenfield | — | — | 4.8 yrs | 55.7 |
| EC FFE Effingham County | Greenfield | — | — | 4.8 yrs | 55.7 |
| Greenfield (UNKNOWN122053 - NEOGA) | Greenfield | 138 kV | 100 MW | 4.8 yrs | 49.5 |
| Discount Gas & Liquors, Inc | Industrial | — | — | 4.8 yrs | 49.5 |
| BIBLE GROVE/MASON IL | Federal Excess | — | — | 4.8 yrs | 49.1 |
| BIBLE GROVE/MASON IL | Federal Excess | — | — | 4.8 yrs | 48.6 |
Every scored site in Effingham County
All 10 sites, best first.
- EC Coal Effingham County · bde29ceb · 58.1
- EC Coal Effingham County · 591075b8 · 56.3
- Substation-Adjacent site · 6541b0f8 · 55.8
- Substation-Adjacent site · 7a6b5524 · 55.7
- OZ Effingham · 55.7
- EC FFE Effingham County · 55.7
- Greenfield (UNKNOWN122053 - NEOGA) · 49.5
- Discount Gas & Liquors, Inc · 49.5
- BIBLE GROVE/MASON IL · 634d84b8 · 49.1
- BIBLE GROVE/MASON IL · 172ac438 · 48.6
Effingham County datacenter FAQ
How many datacenter sites are in Effingham County?
10 scored datacenter candidate sites, averaging 53.4/100 DC Readiness. That is the 74th-most of 101 Illinois counties with five or more sites.
What is the highest-scoring datacenter site in Effingham County?
EC Coal Effingham County · bde29ceb scores 58.1/100 DC Readiness, the highest of the 10 scored sites in Effingham County (a greenfield site).
Does Effingham 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 Effingham County?
FEMA's National Risk Index rates Effingham County as "Relatively High" (score 35).
What are industrial electricity rates in Effingham County?
Average industrial electricity is 7.97¢/kWh and commercial is 10.91¢/kWh in Effingham County.
More in Illinois
- All datacenter sites in Illinois· 3,641 sites
- Operating datacenters in Illinois
- Electric substations in Illinois
- Cook County· 745 sites · avg 53.1
- Winnebago County· 193 sites · avg 51.1
- Stephenson County· 127 sites · avg 47.8
- Madison County· 112 sites · avg 55.9
- St. Clair County· 100 sites · avg 54.4
- Lake· 89 sites · avg 54.8
- Greenfield sites in Illinois
- Federal Excess sites in Illinois
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 November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Effingham County, Illinois”, https://gridcensus.com/datacenter-sites/illinois/effingham-county (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Effingham County, Illinois is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.