Radon zones in Wyoming
| Albany County | Wyoming | 1 |
| Big Horn County | Wyoming | 1 |
| Campbell County | Wyoming | 1 |
| Carbon County | Wyoming | 1 |
| Converse County | Wyoming | 1 |
| Crook County | Wyoming | 1 |
| Fremont County | Wyoming | 1 |
| Goshen County | Wyoming | 1 |
| Hot Springs County | Wyoming | 1 |
| Johnson County | Wyoming | 1 |
| Laramie County | Wyoming | 1 |
| Lincoln County | Wyoming | 1 |
| Natrona County | Wyoming | 1 |
| Niobrara County | Wyoming | 1 |
| Park County | Wyoming | 1 |
| Platte County | Wyoming | 2 |
| Sheridan County | Wyoming | 1 |
| Sublette County | Wyoming | 1 |
| Sweetwater County | Wyoming | 1 |
| Teton County | Wyoming | 1 |
| Uinta County | Wyoming | 1 |
| Washakie County | Wyoming | 1 |
| Weston County | Wyoming | 2 |
Sources
- Wyoming: 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
- Wyoming: 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
- Wyoming: 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
- Wyoming: 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
- Wyoming: 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
- Wyoming: 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.