Radon zones in Arizona
Zone 1: 0, Zone 2: 15, Zone 3: 0. A zone is an area estimate; EPA says all homes should be tested.
- Apache County Zone 2
- Cochise County Zone 2
- Coconino County Zone 2
- Gila County Zone 2
- Graham County Zone 2
- Greenlee County Zone 2
- La Paz County Zone 2
- Maricopa County Zone 2
- Mohave County Zone 2
- Navajo County Zone 2
- Pima County Zone 2
- Pinal County Zone 2
- Santa Cruz County Zone 2
- Yavapai County Zone 2
- Yuma County Zone 2
County not listed? See what we left out and why. Leave your email to hear if this data changes.