Radon zones in Idaho
Zone 1: 19, Zone 2: 20, Zone 3: 5. A zone is an area estimate; EPA says all homes should be tested.
- Ada County Zone 2
- Adams County Zone 3
- Bannock County Zone 2
- Bear Lake County Zone 2
- Benewah County Zone 1
- Bingham County Zone 2
- Blaine County Zone 1
- Boise County Zone 1
- Bonner County Zone 1
- Bonneville County Zone 2
- Boundary County Zone 1
- Butte County Zone 1
- Camas County Zone 1
- Canyon County Zone 2
- Caribou County Zone 2
- Cassia County Zone 2
- Clark County Zone 1
- Clearwater County Zone 1
- Custer County Zone 1
- Elmore County Zone 1
- Franklin County Zone 2
- Fremont County Zone 1
- Gem County Zone 3
- Gooding County Zone 1
- Idaho County Zone 1
- Jefferson County Zone 2
- Jerome County Zone 2
- Kootenai County Zone 1
- Latah County Zone 1
- Lemhi County Zone 1
- Lewis County Zone 3
- Lincoln County Zone 2
- Madison County Zone 2
- Minidoka County Zone 2
- Nez Perce County Zone 3
- Oneida County Zone 2
- Owyhee County Zone 2
- Payette County Zone 2
- Power County Zone 2
- Shoshone County Zone 1
- Teton County Zone 2
- Twin Falls County Zone 2
- Valley County Zone 1
- Washington County Zone 3
County not listed? See what we left out and why. Leave your email to hear if this data changes.