Elliott & Associates tracks the number of radon mitigation systems that have been installed for each zip code since 1995.

Here are the number of radon systems we have installed in each county by zip code for the Illinois counties that Elliott & Associates services:

Select a County:
Cook Kendall
DeKalb La Salle
DuPage Lake
Kane McHenry
Kankakee Will

Interactive Illinois Radon Map

Clicking on the map of Illinois will open an interactive map of the state that displays average measured radon levels submitted to IEMA, color-coded by county. The map enables you to zoom in and out and to find average measured radon levels by county and zip code. Clicking on a county will bring up additional options for locating measurement and mitigation professionals as well as providing access to the measurement data for a specific county by zip code.