Datacenter Sites in Kendall County, Illinois
Kendall County has 12 scored datacenter candidate sites averaging 57.3/100 DC Readiness, with a catalogued aggregate of 2,100 MW. FEMA rates local natural-hazard risk as "Relatively High". The county has a datacenter tax incentive on record.
At a glance
Kendall County, Illinois has 12 scored datacenter candidate sites averaging 57.3/100 DC Readiness, roughly in line with the Illinois average of 53.6. It ranks 62nd of 101 Illinois counties by number of sites and 9th by average score. The top-scoring site is PLANO (765 KV) at 67.0/100.
Site-selection context for Kendall County
Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.
How does Kendall County compare with other counties in Illinois?
By number of scored sites, Kendall County ranks 62nd of the 101 Illinois counties with a county page, holding 0.3% of the state's 3,641 sites. Its average DC Readiness of 57.3/100 ranks 9th in the state and is roughly in line with the national average of 53.0. Nationally it has the 2244th-largest site inventory of 2,964 counties with five or more sites. 0 sites score 70 or higher and 8 score 55 or higher.
What types of datacenter sites are in Kendall County?
Substation-Adjacent sites are the most common (7, 58% of the county's inventory), followed by former mine (3) and greenfield (1). 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 Kendall County?
Industrial electricity averages 4.94¢/kWh and commercial 9.48¢/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 $11,745 an acre.
By site type
Top datacenter sites in Kendall County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| PLANO (765 KV) | Substation-Adjacent | 765 kV | 1,000 MW | 4.8 yrs | 67.0 |
| TAP138230 | Substation-Adjacent | 345 kV | 600 MW | 4.8 yrs | 63.1 |
| OSWEGO | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 59.4 |
| MONTGOMERY | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 59.3 |
| UNKNOWN121977 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 59.1 |
| UNKNOWN124334 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 58.9 |
| EC FFE Kendall County | Greenfield | — | — | 4.8 yrs | 58.2 |
| TAP160102 | Substation-Adjacent | 138 kV | 100 MW | 4.8 yrs | 57.7 |
| Mine Site | Former Mine | — | — | 4.8 yrs | 52.7 |
| JOLIET ILLINOIS | Federal Excess | — | — | 4.8 yrs | 51.6 |
| Mine Site | Former Mine | — | — | 4.8 yrs | 50.1 |
| Mine Site | Former Mine | — | — | 4.8 yrs | 50.1 |
Every scored site in Kendall County
All 12 sites, best first.
- PLANO (765 KV) · 67.0
- Substation-Adjacent site · b20ace71 · 63.1
- OSWEGO · 59.4
- MONTGOMERY · 59.3
- Substation-Adjacent site · ad7528c3 · 59.1
- Substation-Adjacent site · 47f35df8 · 58.9
- EC FFE Kendall County · 58.2
- Substation-Adjacent site · cfc4a265 · 57.7
- Mine Site · 956eefd9 · 52.7
- JOLIET ILLINOIS · f3430be3 · 51.6
- Mine Site · 5663f294 · 50.1
- Mine Site · aed6f3f9 · 50.1
Kendall County datacenter FAQ
How many datacenter sites are in Kendall County?
12 scored datacenter candidate sites, averaging 57.3/100 DC Readiness. That is the 62nd-most of 101 Illinois counties with five or more sites.
What is the highest-scoring datacenter site in Kendall County?
PLANO (765 KV) scores 67.0/100 DC Readiness, the highest of the 12 scored sites in Kendall County (a substation-adjacent site).
Does Kendall 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 Kendall County?
FEMA's National Risk Index rates Kendall County as "Relatively High" (score 35).
What are industrial electricity rates in Kendall County?
Average industrial electricity is 4.94¢/kWh and commercial is 9.48¢/kWh in Kendall 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
- Substation-Adjacent sites in Illinois
- Former Mine 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 Kendall County, Illinois”, https://gridcensus.com/datacenter-sites/illinois/kendall-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 Kendall 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.