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Map of Radon Zones in Michigan based on Environmental Protection Agency (EPA) data

Back to Radon Zones in the United States




Radon zones
 Zone 3 (43 counties)
 Zone 2 (36 counties)
 Zone 1 (9 counties)
  Highest Potential: counties have a predicted average indoor radon screening level greater than 4 pCi/L (pico curies per liter) (red zones)
  Moderate Potential: counties have a predicted average indoor radon screening level between 2 and 4 pCi/L (orange zones)
  Low Potential: counties have a predicted average indoor radon screening level less than 2 pCi/L (yellow zones)
Alcona County
Radon zone : 2

Alger County
Radon zone : 2

Allegan County
Radon zone : 3

Alpena County
Radon zone : 2

Antrim County
Radon zone : 2

Arenac County
Radon zone : 3

Baraga County
Radon zone : 2

Barry County
Radon zone : 2

Bay County
Radon zone : 3

Benzie County
Radon zone : 3

Berrien County
Radon zone : 3

Branch County
Radon zone : 1

Calhoun County
Radon zone : 1

Cass County
Radon zone : 1

Charlevoix County
Radon zone : 2

Cheboygan County
Radon zone : 3

Chippewa County
Radon zone : 3

Clare County
Radon zone : 3

Clinton County
Radon zone : 2

Crawford County
Radon zone : 3

Delta County
Radon zone : 3

Dickinson County
Radon zone : 2

Eaton County
Radon zone : 2

Emmet County
Radon zone : 2

Genesee County
Radon zone : 2

Gladwin County
Radon zone : 3

Gogebic County
Radon zone : 2

Grand Traverse County
Radon zone : 3

Gratiot County
Radon zone : 3

Hillsdale County
Radon zone : 1

Houghton County
Radon zone : 2

Huron County
Radon zone : 3

Ingham County
Radon zone : 2

Ionia County
Radon zone : 2

Iosco County
Radon zone : 3

Iron County
Radon zone : 2

Isabella County
Radon zone : 3

Jackson County
Radon zone : 1

Kalamazoo County
Radon zone : 1

Kalkaska County
Radon zone : 3

Kent County
Radon zone : 2

Keweenaw County
Radon zone : 2

Lake County
Radon zone : 3

Lapeer County
Radon zone : 2

Leelanau County
Radon zone : 2

Lenawee County
Radon zone : 1

Livingston County
Radon zone : 2

Luce County
Radon zone : 3

Mackinac County
Radon zone : 3

Macomb County
Radon zone : 3

Manistee County
Radon zone : 3

Marquette County
Radon zone : 2

Mason County
Radon zone : 3

Mecosta County
Radon zone : 3

Menominee County
Radon zone : 2

Midland County
Radon zone : 3

Missaukee County
Radon zone : 3

Monroe County
Radon zone : 2

Montcalm County
Radon zone : 2

Montmorency County
Radon zone : 2

Muskegon County
Radon zone : 3

Newaygo County
Radon zone : 3

Oakland County
Radon zone : 2

Oceana County
Radon zone : 3

Ogemaw County
Radon zone : 3

Ontonagon County
Radon zone : 3

Osceola County
Radon zone : 3

Oscoda County
Radon zone : 3

Otsego County
Radon zone : 2

Ottawa County
Radon zone : 3

Presque Isle County
Radon zone : 2

Roscommon County
Radon zone : 3

Saginaw County
Radon zone : 3

Sanilac County
Radon zone : 2

Schoolcraft County
Radon zone : 3

Shiawassee County
Radon zone : 2

St. Clair County
Radon zone : 3

St. Joseph County
Radon zone : 1

Tuscola County
Radon zone : 3

Van Buren County
Radon zone : 3

Washtenaw County
Radon zone : 1

Wayne County
Radon zone : 3

Wexford County
Radon zone : 3


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