FEMA flood map notices
Flood map changes in Illinois
Since November 2023, FEMA has published flood hazard notices covering 17 of Illinois's 102 counties.
| County | Notices | Most recent | Appeal window |
|---|---|---|---|
| Will County | 24 | Aug 21, 2026 | — |
| Kane County | 12 | Jun 11, 2026 | — |
| Richland County | 4 | Jun 11, 2026 | — |
| Tazewell County | 2 | Jun 11, 2026 | — |
| Cook County | 11 | Jan 29, 2026 | — |
| Kendall County | 2 | Dec 8, 2025 | — |
| DuPage County | 8 | Oct 2, 2025 | — |
| Hardin County | 2 | Apr 17, 2025 | — |
| Monroe County | 1 | Apr 4, 2025 | — |
| McHenry County | 3 | Mar 26, 2025 | — |
| Macon County | 2 | Jan 8, 2025 | — |
| Lake County | 3 | Dec 18, 2024 | — |
| Stark County | 2 | Dec 13, 2024 | — |
| Clay County | 1 | Sep 26, 2024 | — |
| Effingham County | 1 | Sep 26, 2024 | — |
| LaSalle County | 2 | May 31, 2024 | — |
| Grundy County | 1 | Nov 9, 2023 | — |
All counties in Illinois
- Adams County
- Alexander County
- Bond County
- Boone County
- Brown County
- Bureau County
- Calhoun County
- Carroll County
- Cass County
- Champaign County
- Christian County
- Clark County
- Clay County
- Clinton County
- Coles County
- Cook County
- Crawford County
- Cumberland County
- De Witt County
- DeKalb County
- Douglas County
- DuPage County
- Edgar County
- Edwards County
- Effingham County
- Fayette County
- Ford County
- Franklin County
- Fulton County
- Gallatin County
- Greene County
- Grundy County
- Hamilton County
- Hancock County
- Hardin County
- Henderson County
- Henry County
- Iroquois County
- Jackson County
- Jasper County
- Jefferson County
- Jersey County
- Jo Daviess County
- Johnson County
- Kane County
- Kankakee County
- Kendall County
- Knox County
- Lake County
- LaSalle County
- Lawrence County
- Lee County
- Livingston County
- Logan County
- Macon County
- Macoupin County
- Madison County
- Marion County
- Marshall County
- Mason County
- Massac County
- McDonough County
- McHenry County
- McLean County
- Menard County
- Mercer County
- Monroe County
- Montgomery County
- Morgan County
- Moultrie County
- Ogle County
- Peoria County
- Perry County
- Piatt County
- Pike County
- Pope County
- Pulaski County
- Putnam County
- Randolph County
- Richland County
- Rock Island County
- Saline County
- Sangamon County
- Schuyler County
- Scott County
- Shelby County
- St. Clair County
- Stark County
- Stephenson County
- Tazewell County
- Union County
- Vermilion County
- Wabash County
- Warren County
- Washington County
- Wayne County
- White County
- Whiteside County
- Will County
- Williamson County
- Winnebago County
- Woodford County
What these notices mean
- Proposed
- FEMA has new draft flood maps. This starts a 90-day window when owners can appeal with technical data. It's the best time to act.
- Final
- Appeals are resolved. The new maps usually take effect about six months later, when lenders start applying the new zones.
- Map revision
- A Letter of Map Revision changes one stretch of the map, often after a levee, channel project or new survey.
Notices are organized by county and community, so a notice for your county doesn't mean your property is changing zones. What flood zones mean