Radon zones in Vermont
| Addison County | Vermont | 2 |
| Bennington County | Vermont | 2 |
| Caledonia County | Vermont | 2 |
| Chittenden County | Vermont | 3 |
| Essex County | Vermont | 2 |
| Franklin County | Vermont | 2 |
| Lamoille County | Vermont | 2 |
| Orange County | Vermont | 2 |
| Orleans County | Vermont | 2 |
| Rutland County | Vermont | 2 |
| Washington County | Vermont | 2 |
| Windham County | Vermont | 2 |
| Windsor County | Vermont | 2 |
Sources
- Vermont: 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
- Vermont: 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
- Vermont: 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
- Vermont: 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
- Vermont: 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
- Vermont: 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.