Datacenter Sites in Illinois
Illinois has 4,061 scored datacenter candidate sites averaging 53.1/100 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
53.1/100
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
38.6
Speed-to-power
40.4
Fiber
60.9
Water
70.6
Hazard resilience
54.7
Top 25 datacenter sites in Illinois
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| SHAWNEE | Substation-Adjacent | Massac County | 500 kV | 1,000 MW | 4.6 yrs | 81.3 |
| PLANO (765 KV) | Substation-Adjacent | Kendall County | 765 kV | 1,000 MW | 4.6 yrs | 78.7 |
| UNKNOWN124436 | Substation-Adjacent | Cook County | 345 kV | 600 MW | 2.2 yrs | 78.0 |
| UNKNOWN122269 | Substation-Adjacent | Cook County | 345 kV | 600 MW | 2.2 yrs | 76.8 |
| TAP160103 | Substation-Adjacent | Cook County | 345 kV | 600 MW | 2.2 yrs | 76.6 |
| SUB 39 | Substation-Adjacent | Rock Island County | 345 kV | 600 MW | 1.4 yrs | 76.5 |
| ITASCA | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 76.4 |
| PLANO (345 KV) | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 76.4 |
| ELMHURST | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 76.2 |
| ELECTRIC LIGHT 345 KV | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 76.2 |
| TAP137936 | Substation-Adjacent | Kane County | 345 kV | 600 MW | 2.2 yrs | 76.1 |
| UNKNOWN122246 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 76.1 |
| FARGO 345 KV | Substation-Adjacent | Peoria County | 345 kV | 600 MW | 1.4 yrs | 76.1 |
| UNKNOWN122289 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 76.1 |
| UNKNOWN122244 | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 76.0 |
| TOLLWAY | Substation-Adjacent | Kane County | 345 kV | 600 MW | 2.2 yrs | 76.0 |
| JOLIET 29 | Substation-Adjacent | Will County | 345 kV | 600 MW | 4.6 yrs | 76.0 |
| BURNHAM | Substation-Adjacent | Cook County | 345 kV | 600 MW | 2.2 yrs | 75.8 |
| RISER159738 | Substation-Adjacent | Tazewell County | 345 kV | 600 MW | 4.6 yrs | 75.8 |
| LOMBARD | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 75.6 |
| JOPPA 345 | Substation-Adjacent | Massac County | 345 kV | 600 MW | 4.6 yrs | 75.6 |
| Crawford | Brownfield | Cook | — | 805 MW | — | 75.6 |
| COMMONWEALTH EDISON DES PLAINES (345KV) | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 75.5 |
| LISLE | Substation-Adjacent | DuPage County | 345 kV | 600 MW | 2.2 yrs | 75.4 |
| OAK GROVE | Substation-Adjacent | Rock Island County | 345 kV | 600 MW | 1.4 yrs | 75.3 |
Counties in Illinois
100 counties with five or more scored sites.
Cook County756 · 48.3Winnebago County196 · 46.1Stephenson County132 · 42.4Madison County129 · 53.8Will111 · 60.4St. Clair County107 · 49.9Lake County92 · 56.8Vermilion County91 · 47.5LaSalle90 · 47.5DuPage81 · 68.8Macon County78 · 50.7Williamson County70 · 51.2Ogle64 · 53.7Peoria County62 · 57.4Rock Island County59 · 55.1Sangamon County59 · 53.1Kankakee County58 · 50.0Champaign County56 · 59.4Fulton County55 · 52.1Grundy County51 · 61.0Randolph County49 · 54.0Whiteside County48 · 53.4Tazewell County47 · 62.1McHenry County46 · 58.8Kane County45 · 58.4Saline County42 · 48.0Jackson41 · 52.2Franklin County39 · 54.1Christian County38 · 59.5Perry County38 · 47.0Pike37 · 55.4Lee County36 · 57.4McLean County36 · 59.3Knox County34 · 55.1Boone County33 · 55.6Kendall County30 · 65.0Fayette County29 · 53.3Adams County28 · 55.7DeKalb County28 · 63.8Clinton County27 · 55.9Woodford County26 · 61.0Jefferson County25 · 57.9Livingston County25 · 56.8McDonough County25 · 48.8Mason25 · 56.4Montgomery County25 · 56.5White24 · 53.5Clark County22 · 56.0Hancock County22 · 49.3Jasper County22 · 55.9Logan County22 · 59.5Morgan County22 · 58.0Monroe County21 · 59.1Bureau County20 · 54.3Coles County20 · 57.2Putnam County20 · 58.0Brown County18 · 58.7Crawford County18 · 52.7Washington County18 · 59.3Richland County17 · 49.7De Witt County16 · 63.0Moultrie16 · 56.2Cumberland County15 · 59.4Gallatin County15 · 46.5Jo Daviess County15 · 50.0Macoupin15 · 56.2Stark County15 · 58.2Warren County15 · 43.4Bond County14 · 56.3Carroll14 · 52.7Edwards County14 · 54.9Schuyler County14 · 54.4Shelby County14 · 57.9Wabash County14 · 55.4Douglas County13 · 59.1Johnson County13 · 62.3Marion County13 · 55.0Marshall County13 · 53.8Alexander County12 · 51.4Clay County12 · 60.7Ford County12 · 57.4Hamilton County12 · 59.9Jersey County12 · 57.5Massac County12 · 65.8Lawrence County11 · 50.7Pope County11 · 50.4Edgar County10 · 60.8Effingham County10 · 53.6Iroquois County10 · 60.6Scott County10 · 58.4Hardin County9 · 49.3Henry County9 · 57.5Pulaski County9 · 52.8Cass7 · 56.6Menard County7 · 60.3Mercer County7 · 55.2Piatt County7 · 55.8Calhoun County6 · 56.8Greene County6 · 58.7Union County5 · 55.1
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 53.1/100.
- 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.