Hawaii Radon Levels
0Zone 1 (High)
0Zone 2 (Moderate)
5Zone 3 (Low)
All counties in Hawaii are classified as Zone 3 (lowest radon potential). However, the EPA recommends testing all homes, as elevated radon has been found in homes in every state.
| County | EPA Zone | Risk Level |
|---|---|---|
| Hawaii County | Zone 3 | Lowest Potential |
| Honolulu County | Zone 3 | Lowest Potential |
| Kalawao County | Zone 3 | Lowest Potential |
| Kauai County | Zone 3 | Lowest Potential |
| Maui County | Zone 3 | Lowest Potential |