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Brownfield sites in Illinois
EPA lists 1,679 brownfield sites in Illinois. Grant recipients report them. Here are the counts, EPA's flags and every county.
EPA flags
| EPA flag | Sites |
|---|---|
| Ready for reuse | 303 |
| Assessment | 1,293 |
| Cleanup | 57 |
| Targeted assessment | 140 |
| State or tribal program | 98 |
| Multipurpose grant | 3 |
| Area-wide planning | 11 |
A site can carry more than one flag. The grant flags show which kinds of EPA brownfield funding a site is listed under.
Counties with 8 or more sites
| County | Sites | Ready for reuse |
|---|---|---|
| Boone County | 10 | 1 |
| Cook County | 720 | 111 |
| Fulton County | 34 | 6 |
| Hancock County | 12 | 1 |
| Kankakee County | 29 | 19 |
| Knox County | 14 | 1 |
| La Salle County | 65 | 10 |
| Lake County | 35 | 4 |
| Lee County | 9 | 0 |
| Macon County | 34 | 17 |
| Madison County | 60 | 17 |
| McDonough County | 17 | 0 |
| Ogle County | 29 | 5 |
| Peoria County | 41 | 8 |
| Rock Island County | 30 | 5 |
| Sangamon County | 13 | 0 |
| St. Clair County | 69 | 3 |
| Stephenson County | 112 | 10 |
| Vermilion County | 49 | 11 |
| Warren County | 13 | 1 |
| Whiteside County | 22 | 2 |
| Will County | 16 | 1 |
| Winnebago County | 167 | 54 |
Counties with fewer than 8 sites
These counties have no page of their own. The number is their site count.
- Alexander County (2)
- Bureau County (2)
- Champaign County (1)
- Clark County (1)
- Clinton County (1)
- Coles County (2)
- Crawford County (3)
- Dekalb County (1)
- Douglas County (1)
- Dupage County (2)
- Edwards County (1)
- Effingham County (2)
- Fayette County (7)
- Ford County (1)
- Grundy County (1)
- Hamilton County (1)
- Henry County (1)
- Il County (1)
- Iroquois County (1)
- Jackson County (1)
- Jersey County (1)
- Jo Daviess County (1)
- Kane County (2)
- Lasalle County (3)
- Macoun County (1)
- Marion County (1)
- Marshall County (1)
- Mason County (2)
- Massac County (1)
- McHenry County (1)
- McLean County (2)
- Milwaukee County (5)
- Morgan County (1)
- Perry County (1)
- Piatt County (2)
- Pulaski County (1)
- Richland County (7)
- Saline County (2)
- Schuyler County (1)
- Wabash County (1)
- White County (2)
- Williamson County (5)
2 sites in Illinois have no county in EPA's data.
To see each site in Illinois on a map, use the Cleanups in My Community map, on EPA's site.
What this data holds
- Acreage isn't in EPA's national data, so we don't show site sizes.
- We hold no flood data for these sites.
- We show the city and county, not street addresses.
- Zoning: Check zoning with the city.
- Grant recipients report these sites to EPA. A flag is EPA's record, not a site visit.
Go further with a paid plan
A paid plan runs site reports and area scans on the sites you pick. How much we read varies by state.
Starter: US$39 a month for 100 credits. Run full site reports, area scans and letter drops.
Or create a free account first. No card needed.
US EPA data, as of 18 Oct 2026, reported by grant recipients. Not endorsed by EPA. Not legal or environmental advice; confirm with the state or EPA region.