Radon Zone Map

All counties

Radon zones in South Dakota

Aurora CountySouth Dakota1
Beadle CountySouth Dakota1
Bennett CountySouth Dakota2
Bon Homme CountySouth Dakota1
Brookings CountySouth Dakota1
Brown CountySouth Dakota1
Brule CountySouth Dakota1
Buffalo CountySouth Dakota1
Butte CountySouth Dakota2
Campbell CountySouth Dakota1
Charles Mix CountySouth Dakota1
Clark CountySouth Dakota1
Clay CountySouth Dakota1
Codington CountySouth Dakota1
Corson CountySouth Dakota1
Custer CountySouth Dakota2
Davison CountySouth Dakota1
Day CountySouth Dakota1
Deuel CountySouth Dakota1
Dewey CountySouth Dakota2
Douglas CountySouth Dakota1
Edmunds CountySouth Dakota1
Fall River CountySouth Dakota2
Faulk CountySouth Dakota1
Grant CountySouth Dakota1
Gregory CountySouth Dakota2
Haakon CountySouth Dakota2
Hamlin CountySouth Dakota1
Hand CountySouth Dakota1
Hanson CountySouth Dakota1
Harding CountySouth Dakota2
Hughes CountySouth Dakota1
Hutchinson CountySouth Dakota1
Hyde CountySouth Dakota1
Jackson CountySouth Dakota2
Jerauld CountySouth Dakota1
Jones CountySouth Dakota2
Kingsbury CountySouth Dakota1
Lake CountySouth Dakota1
Lawrence CountySouth Dakota2
Lincoln CountySouth Dakota1
Lyman CountySouth Dakota1
Marshall CountySouth Dakota1
McCook CountySouth Dakota1
McPherson CountySouth Dakota1
Meade CountySouth Dakota2
Mellette CountySouth Dakota2
Miner CountySouth Dakota1
Minnehaha CountySouth Dakota1
Moody CountySouth Dakota1
Pennington CountySouth Dakota2
Perkins CountySouth Dakota1
Potter CountySouth Dakota1
Roberts CountySouth Dakota1
Sanborn CountySouth Dakota1
Spink CountySouth Dakota1
Stanley CountySouth Dakota1
Sully CountySouth Dakota1
Todd CountySouth Dakota2
Tripp CountySouth Dakota2
Turner CountySouth Dakota1
Union CountySouth Dakota1
Walworth CountySouth Dakota1
Yankton CountySouth Dakota1
Ziebach CountySouth Dakota2

Sources

  1. South Dakota: 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. South Dakota: 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. South Dakota: 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. South Dakota: 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. South Dakota: 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. South Dakota: 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.