Kentucky has 120 counties, with 30 classified as EPA Zone 1 (highest risk). With an average radon level of 9.45 pCi/L, Kentucky state testing data reveals significantly elevated risks across multiple counties. Testing is highly recommended.
Kentucky is the 37th most expansive state and the 26th most populous. The state has an active radon program, dedicated to educating citizens about the risks associated with the deadly gas. You can find more information on Radon, testing and mitigation at the official page.
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 |
|---|---|---|
| Bowling Green | 15.80 pCi/L | 5 |
| Lexington | 8.40 pCi/L | 5 |
| Frankfort | 7.80 pCi/L | 5 |
| Florence | 5.40 pCi/L | 5 |
| Owensboro | 5.33 pCi/L | 3 |
| Union | 4.67 pCi/L | 3 |
| Brandenburg | 11.50 pCi/L | 2 |
| Harrodsburg | 9.00 pCi/L | 2 |
| Louisville | 5.50 pCi/L | 2 |
| Campbellsville | 11.00 pCi/L | 1 |
All 120 Kentucky counties with their EPA radon zone classification and user-submitted average radon levels.
Browse radon data for individual cities across Kentucky. Each city page includes user-submitted radon levels, local contractors, and mitigation resources.