Radon zones in South Carolina
Zone 1: 1, Zone 2: 8, Zone 3: 37. A zone is an area estimate; EPA says all homes should be tested.
- Abbeville County Zone 2
- Aiken County Zone 3
- Allendale County Zone 3
- Anderson County Zone 2
- Bamberg County Zone 3
- Barnwell County Zone 3
- Beaufort County Zone 3
- Berkeley County Zone 3
- Calhoun County Zone 3
- Charleston County Zone 3
- Cherokee County Zone 2
- Chester County Zone 3
- Chesterfield County Zone 3
- Clarendon County Zone 3
- Colleton County Zone 3
- Darlington County Zone 3
- Dillon County Zone 3
- Dorchester County Zone 3
- Edgefield County Zone 3
- Fairfield County Zone 3
- Florence County Zone 3
- Georgetown County Zone 3
- Greenville County Zone 1
- Greenwood County Zone 3
- Hampton County Zone 3
- Horry County Zone 3
- Jasper County Zone 3
- Kershaw County Zone 3
- Lancaster County Zone 3
- Laurens County Zone 2
- Lee County Zone 3
- Lexington County Zone 3
- McCormick County Zone 3
- Marion County Zone 3
- Marlboro County Zone 3
- Newberry County Zone 3
- Oconee County Zone 2
- Orangeburg County Zone 3
- Pickens County Zone 2
- Richland County Zone 3
- Saluda County Zone 3
- Spartanburg County Zone 2
- Sumter County Zone 3
- Union County Zone 3
- Williamsburg County Zone 3
- York County Zone 2
County not listed? See what we left out and why. Leave your email to hear if this data changes.