Louisville, KY Radon Levels
Check local Louisville radon levels and find certified testing and mitigation professionals to keep your home safe
Louisville, KY Radon Facts
Kentucky's largest city in Jefferson County shows an average radon level of 5.5 pCi/L, which exceeds the EPA's action threshold of 4.0 pCi/L. Based on testing data showing readings between 4.0 and 7.0 pCi/L, Louisville homeowners should prioritize radon testing and mitigation when necessary. The city's diverse housing stock, from historic neighborhoods to modern suburbs, sits on limestone bedrock that contributes to elevated radon potential throughout the metro area.
Based on 2 user-submitted radon tests for homes in Louisville, KY. The EPA recommends taking action at or above 4.0 pCi/L.
Louisville, KY Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Louisville?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Jefferson County Pros
Louisville, KY Radon Levels
User-submitted radon test readings from homes in the Louisville area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 4 pCi/L | Louisville, KY | 51-99 Years | Full Basement |
| 7 pCi/L | Louisville, KY | 0-20 Years | Full Basement |
Have a radon test result for Louisville? Submit your reading to help other homeowners.
Radon Readings Near Louisville, KY
Compare radon levels in Louisville with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Shepherdsville | 14.2 mi | 20.00 pCi/L | 1 |
| Crestwood | 15.2 mi | 5.00 pCi/L | 1 |
| Goshen | 15.5 mi | 10.00 pCi/L | 1 |
| Taylorsville | 20.3 mi | 6.00 pCi/L | 1 |
| Brandenburg | 28.1 mi | 11.50 pCi/L | 2 |
| Vine Grove | 29.6 mi | 20.00 pCi/L | 1 |
| Bardstown | 30.5 mi | 12.67 pCi/L | 3 |
| Elizabethtown | 37.6 mi | 18.33 pCi/L | 3 |
Jefferson County Radon Profile
Jefferson County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 1 city in Jefferson County average 5.50 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Jefferson County to test, as levels can differ between neighboring homes.