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

Back to Radon Zones in the United States




Radon zones
 Zone 3 (7 counties)
 Zone 2 (97 counties)
 Zone 1 (11 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)
Adair County
Radon zone : 2

Andrew County
Radon zone : 1

Atchison County
Radon zone : 1

Audrain County
Radon zone : 2

Barry County
Radon zone : 2

Barton County
Radon zone : 2

Bates County
Radon zone : 2

Benton County
Radon zone : 2

Bollinger County
Radon zone : 2

Boone County
Radon zone : 2

Buchanan County
Radon zone : 1

Butler County
Radon zone : 3

Caldwell County
Radon zone : 2

Callaway County
Radon zone : 2

Camden County
Radon zone : 2

Cape Girardeau County
Radon zone : 2

Carroll County
Radon zone : 2

Carter County
Radon zone : 2

Cass County
Radon zone : 1

Cedar County
Radon zone : 2

Chariton County
Radon zone : 2

Christian County
Radon zone : 2

Clark County
Radon zone : 2

Clay County
Radon zone : 1

Clinton County
Radon zone : 1

Cole County
Radon zone : 2

Cooper County
Radon zone : 2

Crawford County
Radon zone : 2

Dade County
Radon zone : 2

Dallas County
Radon zone : 2

Daviess County
Radon zone : 2

DeKalb County
Radon zone : 2

Dent County
Radon zone : 2

Douglas County
Radon zone : 2

Dunklin County
Radon zone : 3

Franklin County
Radon zone : 2

Gasconade County
Radon zone : 2

Gentry County
Radon zone : 2

Greene County
Radon zone : 2

Grundy County
Radon zone : 2

Harrison County
Radon zone : 2

Henry County
Radon zone : 2

Hickory County
Radon zone : 2

Holt County
Radon zone : 1

Howard County
Radon zone : 2

Howell County
Radon zone : 2

Iron County
Radon zone : 1

Jackson County
Radon zone : 1

Jasper County
Radon zone : 2

Jefferson County
Radon zone : 2

Johnson County
Radon zone : 2

Knox County
Radon zone : 2

Laclede County
Radon zone : 2

Lafayette County
Radon zone : 2

Lawrence County
Radon zone : 2

Lewis County
Radon zone : 2

Lincoln County
Radon zone : 2

Linn County
Radon zone : 2

Livingston County
Radon zone : 2

Macon County
Radon zone : 2

Madison County
Radon zone : 2

Maries County
Radon zone : 2

Marion County
Radon zone : 2

McDonald County
Radon zone : 2

Mercer County
Radon zone : 2

Miller County
Radon zone : 2

Mississippi County
Radon zone : 3

Moniteau County
Radon zone : 2

Monroe County
Radon zone : 2

Montgomery County
Radon zone : 2

Morgan County
Radon zone : 2

New Madrid County
Radon zone : 3

Newton County
Radon zone : 2

Nodaway County
Radon zone : 1

Oregon County
Radon zone : 2

Osage County
Radon zone : 2

Ozark County
Radon zone : 2

Pemiscot County
Radon zone : 3

Perry County
Radon zone : 2

Pettis County
Radon zone : 2

Phelps County
Radon zone : 2

Pike County
Radon zone : 2

Platte County
Radon zone : 1

Polk County
Radon zone : 2

Pulaski County
Radon zone : 2

Putnam County
Radon zone : 2

Ralls County
Radon zone : 2

Randolph County
Radon zone : 2

Ray County
Radon zone : 2

Reynolds County
Radon zone : 2

Ripley County
Radon zone : 2

Saline County
Radon zone : 2

Schuyler County
Radon zone : 2

Scotland County
Radon zone : 2

Scott County
Radon zone : 3

Shannon County
Radon zone : 2

Shelby County
Radon zone : 2

St. Charles County
Radon zone : 2

St. Clair County
Radon zone : 2

St. Francois County
Radon zone : 2

St. Louis County
Radon zone : 2

St. Louis County
Radon zone : 2

Ste. Genevieve County
Radon zone : 2

Stoddard County
Radon zone : 3

Stone County
Radon zone : 2

Sullivan County
Radon zone : 2

Taney County
Radon zone : 2

Texas County
Radon zone : 2

Vernon County
Radon zone : 2

Warren County
Radon zone : 2

Washington County
Radon zone : 2

Wayne County
Radon zone : 2

Webster County
Radon zone : 2

Worth County
Radon zone : 2

Wright County
Radon zone : 2


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