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

Back to Radon Zones in the United States




Radon zones
 Zone 3 (65 counties)
 Zone 2 (31 counties)
 Zone 1 (8 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)
Alamance County
Radon zone : 3

Alexander County
Radon zone : 2

Alleghany County
Radon zone : 1

Anson County
Radon zone : 3

Ashe County
Radon zone : 2

Avery County
Radon zone : 2

Beaufort County
Radon zone : 3

Bertie County
Radon zone : 3

Bladen County
Radon zone : 3

Brunswick County
Radon zone : 3

Buncombe County
Radon zone : 1

Burke County
Radon zone : 2

Cabarrus County
Radon zone : 3

Caldwell County
Radon zone : 2

Camden County
Radon zone : 3

Carteret County
Radon zone : 3

Caswell County
Radon zone : 2

Catawba County
Radon zone : 2

Chatham County
Radon zone : 3

Cherokee County
Radon zone : 1

Chowan County
Radon zone : 3

Clay County
Radon zone : 2

Cleveland County
Radon zone : 2

Columbus County
Radon zone : 3

Craven County
Radon zone : 3

Cumberland County
Radon zone : 3

Currituck County
Radon zone : 3

Dare County
Radon zone : 3

Davidson County
Radon zone : 3

Davie County
Radon zone : 3

Duplin County
Radon zone : 3

Durham County
Radon zone : 3

Edgecombe County
Radon zone : 3

Forsyth County
Radon zone : 2

Franklin County
Radon zone : 2

Gaston County
Radon zone : 2

Gates County
Radon zone : 3

Graham County
Radon zone : 2

Granville County
Radon zone : 3

Greene County
Radon zone : 3

Guilford County
Radon zone : 3

Halifax County
Radon zone : 3

Harnett County
Radon zone : 3

Haywood County
Radon zone : 2

Henderson County
Radon zone : 1

Hertford County
Radon zone : 3

Hoke County
Radon zone : 3

Hyde County
Radon zone : 3

Iredell County
Radon zone : 2

Jackson County
Radon zone : 2

Johnston County
Radon zone : 3

Jones County
Radon zone : 3

Lee County
Radon zone : 3

Lenoir County
Radon zone : 3

Lincoln County
Radon zone : 2

Macon County
Radon zone : 2

Madison County
Radon zone : 2

Martin County
Radon zone : 3

McDowell County
Radon zone : 2

Mecklenburg County
Radon zone : 3

Mitchell County
Radon zone : 1

Montgomery County
Radon zone : 3

Moore County
Radon zone : 3

Nash County
Radon zone : 3

New Hanover County
Radon zone : 3

Northampton County
Radon zone : 3

Onslow County
Radon zone : 3

Orange County
Radon zone : 3

Pamlico County
Radon zone : 3

Pasquotank County
Radon zone : 3

Pender County
Radon zone : 3

Perquimans County
Radon zone : 3

Person County
Radon zone : 3

Pitt County
Radon zone : 3

Polk County
Radon zone : 2

Randolph County
Radon zone : 3

Richmond County
Radon zone : 3

Robeson County
Radon zone : 3

Rockingham County
Radon zone : 1

Rowan County
Radon zone : 3

Rutherford County
Radon zone : 2

Sampson County
Radon zone : 3

Scotland County
Radon zone : 3

Stanly County
Radon zone : 3

Stokes County
Radon zone : 2

Surry County
Radon zone : 2

Swain County
Radon zone : 2

Transylvania County
Radon zone : 1

Tyrrell County
Radon zone : 3

Union County
Radon zone : 3

Vance County
Radon zone : 2

Wake County
Radon zone : 2

Warren County
Radon zone : 2

Washington County
Radon zone : 3

Watauga County
Radon zone : 1

Wayne County
Radon zone : 3

Wilkes County
Radon zone : 2

Wilson County
Radon zone : 3

Yadkin County
Radon zone : 2

Yancey County
Radon zone : 2


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