Alaska has 27 counties, with 0 classified as EPA Zone 1 (highest risk). With an average radon level of 7.17 pCi/L, Alaska state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.
Alaska is the largest state in the United States by surface area, the least densely populated and the fourth least populous. Alaska has no active radon program, however the state does maintain an informative website on the general air quality in the state.
Explore radon data organized by metro region, including average levels, hotspot cities, and local mitigation professionals.
Cities with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Anchorage | 5.00 pCi/L | 5 |
| Palmer | 9.00 pCi/L | 4 |
| Eagle River | 9.33 pCi/L | 3 |
| Wasilla | 5.00 pCi/L | 1 |
All 27 Alaska counties with their EPA radon zone classification and user-submitted average radon levels.
Browse radon data for individual cities across Alaska. Each city page includes user-submitted radon levels, local contractors, and mitigation resources.