IL Radon Levels

Adams Zone 1

Alexander Zone 3

Bond Zone 2

Boone Zone 1

Brown Zone 1

Bureau Zone 1

Calhoun Zone 1

Carroll Zone 1

Cass Zone 1

Champaign Zone 1

Christian Zone 2

Clark Zone 2

Clay Zone 2

Clinton Zone 2

Coles Zone 1

Cook Zone 2

Crawford Zone 2

Cumberland Zone 2

De Witt Zone 1

DeKalb Zone 1

Douglas Zone 1

DuPage Zone 2

Edgar Zone 1

Edwards Zone 2

Effingham Zone 2

Fayette Zone 2

Ford Zone 1

Franklin Zone 2

Fulton Zone 1

Gallatin Zone 2

Greene Zone 1

Grundy Zone 1

Hamilton Zone 2

Hancock Zone 1

Hardin Zone 2

Henderson Zone 1

Henry Zone 1

Iroquois Zone 1

Jackson Zone 2

Jasper Zone 2

Jefferson Zone 2

Jersey Zone 1

Jo Daviess Zone 1

Johnson Zone 2

Kane Zone 1

Kankakee Zone 2

Kendall Zone 1

Knox Zone 1

LaSalle Zone 1

Lake Zone 2

Lawrence Zone 2

Lee Zone 1

Livingston Zone 1

Logan Zone 1

Macon Zone 1

Macoupin Zone 2

Madison Zone 2

Marion Zone 2

Marshall Zone 1

Mason Zone 1

Massac Zone 3

McDonough Zone 1

McHenry Zone 2

McLean Zone 1

Menard Zone 1

Mercer Zone 1

Monroe Zone 2

Montgomery Zone 2

Morgan Zone 1

Moultrie Zone 1

Ogle Zone 1

Peoria Zone 1

Perry Zone 2

Piatt Zone 1

Pike Zone 1

Pope Zone 2

Pulaski Zone 3

Putnam Zone 1

Randolph Zone 2

Richland Zone 2

Rock Island Zone 1

Saline Zone 2

Sangamon Zone 1

Schuyler Zone 1

Scott Zone 1

Shelby Zone 2

St. Clair Zone 2

Stark Zone 1

Stephenson Zone 1

Tazewell Zone 1

Union Zone 2

Vermilion Zone 1

Wabash Zone 2

Warren Zone 1

Washington Zone 2

Wayne Zone 2

White Zone 2

Whiteside Zone 1

Will Zone 2

Williamson Zone 2

Winnebago Zone 1

Woodford Zone 1