Datacenter Sites in Illinois
Illinois has 4,061 scored datacenter candidate sites averaging 57.0/100 DC Readiness. Industrial parcels lead the inventory (1,441 sites). Most sites interconnect through PJM. The state's candidate sites carry a catalogued aggregate of 377.7k MW and average a 4.1 yrs interconnection-queue wait.
4,061
Candidate sites
57.0/100
Avg DC Readiness
377.7k MW
Catalogued capacity
theoretical aggregate
4.1 yrs
Avg queue wait
By site type
Average sub-score profile
How Illinois's candidate sites score on each DC Readiness dimension (0–100 average).
Power availability
36.9
Speed-to-power
38.7
Fiber
73.2
Water
88.3
Hazard resilience
61.7
Top 25 datacenter sites in Illinois
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| UNKNOWN122269 | Substation-Adjacent | Cook County | 345 kV | 600 MW | 3.8 yrs | 71.0 |
| UNKNOWN124436 | Substation-Adjacent | Cook County | 345 kV | 600 MW | 3.8 yrs | 70.1 |
| UNKNOWN121936 | Substation-Adjacent | Kenosha County | 345 kV | 600 MW | 3.8 yrs | 69.5 |
| CAHOKIA | Substation-Adjacent | St. Louis city | 345 kV | 600 MW | 3.8 yrs | 68.6 |
| PLANO (765 KV) | Substation-Adjacent | Kendall County | 765 kV | 1,000 MW | 3.8 yrs | 68.5 |
| SUB 39 | Substation-Adjacent | Rock Island County | 345 kV | 600 MW | 3.8 yrs | 68.3 |
| Solar Star Urbana Landfill Community Solar Farm | Brownfield | Champaign | — | 5 MW | 3.8 yrs | 67.9 |
| Electric Junction | Brownfield | DuPage County | — | 304 MW | 4.6 yrs | 67.8 |
| FARGO 345 KV | Substation-Adjacent | Peoria County | 345 kV | 600 MW | 3.8 yrs | 67.7 |
| ELMHURST | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.6 |
| ELECTRIC LIGHT 345 KV | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.6 |
| UNKNOWN122285 | Substation-Adjacent | Cook County | 345 kV | 600 MW | 3.8 yrs | 67.6 |
| ITASCA | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.5 |
| OAK GROVE | Substation-Adjacent | Rock Island County | 345 kV | 600 MW | 3.8 yrs | 67.5 |
| TAP139481 | Substation-Adjacent | St. Louis city | 345 kV | 600 MW | 3.8 yrs | 67.4 |
| UNKNOWN122226 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.4 |
| TAP138235 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.4 |
| UNKNOWN124699 | Substation-Adjacent | Cook County | 345 kV | 600 MW | 3.8 yrs | 67.4 |
| LISLE | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.3 |
| UNKNOWN122220 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.3 |
| RISER159741 | Substation-Adjacent | Tazewell County | 345 kV | 600 MW | 3.8 yrs | 67.2 |
| TAP138253 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.2 |
| UNKNOWN122221 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 3.8 yrs | 67.2 |
| UNKNOWN133790 | Substation-Adjacent | Lake County | 345 kV | 600 MW | 3.8 yrs | 66.8 |
| QUAD CITIES | Substation-Adjacent | Clinton County | 345 kV | 600 MW | 3.8 yrs | 66.8 |
Counties in Illinois
100 counties with five or more scored sites.
Cook County756 · 55.8Winnebago County196 · 53.6Stephenson County132 · 50.8Madison County129 · 58.3Will111 · 61.8St. Clair County107 · 56.8Lake County92 · 59.3Vermilion County91 · 53.4LaSalle90 · 53.2DuPage81 · 66.5Macon County78 · 55.1Williamson County70 · 55.4Ogle64 · 57.8Peoria County62 · 60.6Rock Island County59 · 60.4Sangamon County59 · 56.4Kankakee County58 · 55.1Champaign County56 · 60.4Fulton County55 · 56.6Grundy County51 · 60.6Randolph County49 · 56.4Whiteside County48 · 56.9Tazewell County47 · 62.6McHenry County46 · 59.5Kane County45 · 60.6Saline County42 · 53.8Jackson41 · 54.8Franklin County39 · 56.9Christian County38 · 60.0Perry County38 · 53.3Pike37 · 55.9Lee County36 · 58.7McLean County36 · 60.4Knox County34 · 57.4Boone County33 · 58.0Kendall County30 · 64.7Fayette County29 · 55.3Adams County28 · 57.4DeKalb County28 · 62.4Clinton County27 · 56.7Woodford County26 · 61.7Jefferson County25 · 58.8Livingston County25 · 59.6McDonough County25 · 53.9Mason25 · 57.1Montgomery County25 · 56.8White24 · 55.0Clark County22 · 56.9Hancock County22 · 54.3Jasper County22 · 56.4Logan County22 · 59.5Morgan County22 · 58.5Monroe County21 · 59.8Bureau County20 · 55.6Coles County20 · 59.0Putnam County20 · 57.4Brown County18 · 58.0Crawford County18 · 54.9Washington County18 · 58.8Richland County17 · 53.9De Witt County16 · 62.0Moultrie16 · 56.7Cumberland County15 · 59.3Gallatin County15 · 52.3Jo Daviess County15 · 55.7Macoupin15 · 56.4Stark County15 · 58.0Warren County15 · 50.7Bond County14 · 58.2Carroll14 · 55.9Edwards County14 · 57.3Schuyler County14 · 55.7Shelby County14 · 58.8Wabash County14 · 57.6Douglas County13 · 59.3Johnson County13 · 62.0Marion County13 · 55.9Marshall County13 · 56.2Alexander County12 · 55.5Clay County12 · 60.1Ford County12 · 58.3Hamilton County12 · 59.7Jersey County12 · 58.4Massac County12 · 67.2Lawrence County11 · 53.1Pope County11 · 55.4Edgar County10 · 60.1Effingham County10 · 55.3Iroquois County10 · 59.8Scott County10 · 58.4Hardin County9 · 53.1Henry County9 · 59.4Pulaski County9 · 55.2Cass7 · 56.6Menard County7 · 58.9Mercer County7 · 59.4Piatt County7 · 57.8Calhoun County6 · 56.8Greene County6 · 58.7Union County5 · 57.6
Illinois datacenter site selection FAQ
- How many datacenter sites are in Illinois?
- GridCensus catalogs 4,061 scored datacenter candidate sites in Illinois, with an average DC Readiness score of 57.0/100.
- What is the average interconnection-queue wait in Illinois?
- Candidate sites in Illinois average a 4.1 yrs interconnection-queue wait, with an average queue depth of 238 projects.
- What kind of datacenter sites are most common in Illinois?
- Industrial sites are the most common category in Illinois (1,441 sites), and most sites fall within the PJM grid region.
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 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.