Radon zones in North Carolina
| Anson County | North Carolina | 3 |
| Ashe County | North Carolina | 2 |
| Beaufort County | North Carolina | 3 |
| Bertie County | North Carolina | 3 |
| Bladen County | North Carolina | 3 |
| Brunswick County | North Carolina | 3 |
| Buncombe County | North Carolina | 1 |
| Burke County | North Carolina | 2 |
| Cabarrus County | North Carolina | 3 |
| Catawba County | North Carolina | 2 |
| Chatham County | North Carolina | 3 |
| Cherokee County | North Carolina | 1 |
| Chowan County | North Carolina | 3 |
| Clay County | North Carolina | 2 |
| Columbus County | North Carolina | 3 |
| Craven County | North Carolina | 3 |
| Cumberland County | North Carolina | 3 |
| Dare County | North Carolina | 3 |
| Davie County | North Carolina | 3 |
| Duplin County | North Carolina | 3 |
| Edgecombe County | North Carolina | 3 |
| Forsyth County | North Carolina | 2 |
| Franklin County | North Carolina | 2 |
| Gates County | North Carolina | 3 |
| Graham County | North Carolina | 2 |
| Greene County | North Carolina | 3 |
| Guilford County | North Carolina | 3 |
| Halifax County | North Carolina | 3 |
| Harnett County | North Carolina | 3 |
| Henderson County | North Carolina | 1 |
| Hertford County | North Carolina | 3 |
| Hoke County | North Carolina | 3 |
| Hyde County | North Carolina | 3 |
| Iredell County | North Carolina | 2 |
| Jackson County | North Carolina | 2 |
| Johnston County | North Carolina | 3 |
| Jones County | North Carolina | 3 |
| Lee County | North Carolina | 3 |
| Lenoir County | North Carolina | 3 |
| Lincoln County | North Carolina | 2 |
| Macon County | North Carolina | 2 |
| Madison County | North Carolina | 2 |
| Martin County | North Carolina | 3 |
| McDowell County | North Carolina | 2 |
| Mitchell County | North Carolina | 1 |
| Moore County | North Carolina | 3 |
| Nash County | North Carolina | 3 |
| Onslow County | North Carolina | 3 |
| Pamlico County | North Carolina | 3 |
| Pasquotank County | North Carolina | 3 |
| Pender County | North Carolina | 3 |
| Pitt County | North Carolina | 3 |
| Polk County | North Carolina | 2 |
| Randolph County | North Carolina | 3 |
| Richmond County | North Carolina | 3 |
| Robeson County | North Carolina | 3 |
| Rockingham County | North Carolina | 1 |
| Rowan County | North Carolina | 3 |
| Rutherford County | North Carolina | 2 |
| Sampson County | North Carolina | 3 |
| Scotland County | North Carolina | 3 |
| Stanly County | North Carolina | 3 |
| Stokes County | North Carolina | 2 |
| Surry County | North Carolina | 2 |
| Swain County | North Carolina | 2 |
| Transylvania County | North Carolina | 1 |
| Union County | North Carolina | 3 |
| Vance County | North Carolina | 2 |
| Wake County | North Carolina | 2 |
| Warren County | North Carolina | 2 |
| Watauga County | North Carolina | 1 |
| Wayne County | North Carolina | 3 |
| Wilkes County | North Carolina | 2 |
| Wilson County | North Carolina | 3 |
| Yadkin County | North Carolina | 2 |
Sources
- North Carolina: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- North Carolina: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- North Carolina: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- North Carolina: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- North Carolina: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- North Carolina: EPA Map of Radon Zones, US Environmental Protection Agency, checked 1 November 2026
- 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.