Below are downloadable copies of FEMA’s floodplain maps for Kankakee County. They are in a TIF file format and can be viewed with a variety of image, CAD and GIS softwares.
The index map will help guide you to the map that you need.

Kankakee County Floodplain Maps
Municipal Floodplain Maps
For those of you with broadband, the entire FEMA Floodplain Map Bundle for Kankakee County can be downloaded here: Floodplain Bundle