Radon Zone Map

All counties

Radon zones in Michigan

Alcona CountyMichigan2
Alger CountyMichigan2
Allegan CountyMichigan3
Alpena CountyMichigan2
Antrim CountyMichigan2
Arenac CountyMichigan3
Baraga CountyMichigan2
Barry CountyMichigan2
Bay CountyMichigan3
Benzie CountyMichigan3
Branch CountyMichigan1
Calhoun CountyMichigan1
Cass CountyMichigan1
Charlevoix CountyMichigan2
Chippewa CountyMichigan3
Clare CountyMichigan3
Clinton CountyMichigan2
Crawford CountyMichigan3
Delta CountyMichigan3
Dickinson CountyMichigan2
Eaton CountyMichigan2
Emmet CountyMichigan2
Genesee CountyMichigan2
Gladwin CountyMichigan3
Gogebic CountyMichigan2
Hillsdale CountyMichigan1
Huron CountyMichigan3
Ingham CountyMichigan2
Ionia CountyMichigan2
Iosco CountyMichigan3
Iron CountyMichigan2
Isabella CountyMichigan3
Jackson CountyMichigan1
Kalamazoo CountyMichigan1
Kalkaska CountyMichigan3
Kent CountyMichigan2
Keweenaw CountyMichigan2
Lake CountyMichigan3
Lapeer CountyMichigan2
Leelanau CountyMichigan2
Lenawee CountyMichigan1
Luce CountyMichigan3
Mackinac CountyMichigan3
Manistee CountyMichigan3
Marquette CountyMichigan2
Mason CountyMichigan3
Menominee CountyMichigan2
Midland CountyMichigan3
Missaukee CountyMichigan3
Monroe CountyMichigan2
Montcalm CountyMichigan2
Montmorency CountyMichigan2
Newaygo CountyMichigan3
Oakland CountyMichigan2
Oceana CountyMichigan3
Ogemaw CountyMichigan3
Osceola CountyMichigan3
Otsego CountyMichigan2
Presque Isle CountyMichigan2
Roscommon CountyMichigan3
Saginaw CountyMichigan3
Sanilac CountyMichigan2
Schoolcraft CountyMichigan3
Shiawassee CountyMichigan2
St. Clair CountyMichigan3
St. Joseph CountyMichigan1
Tuscola CountyMichigan3
Van Buren CountyMichigan3
Wayne CountyMichigan3
Wexford CountyMichigan3

Sources

  1. Michigan: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  2. EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  3. Michigan: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  4. EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  5. Michigan: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  6. EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  7. Michigan: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  8. EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  9. Michigan: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  10. EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  11. Michigan: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
  12. EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026

"Secondary" marks a source used only because the official page could not be read.