Winston Salem, NC Radon Levels
Check local Winston Salem radon levels and find certified testing and mitigation professionals to keep your home safe
Winston Salem, NC Radon Facts
Winston Salem in Forsyth County shows an average radon level of 7.5 pCi/L from available testing, significantly exceeding the EPA action level. Built on Piedmont granite and metamorphic bedrock, the city's geology commonly produces elevated radon readings across various zip codes. Homeowners throughout the Winston Metro should test their properties and strongly consider mitigation systems when levels exceed 4.0 pCi/L.
Based on 3 user-submitted radon tests for homes in Winston Salem, NC. The EPA recommends taking action at or above 4.0 pCi/L.
Winston Salem, NC Radon Mitigation
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Winston Salem, NC Radon Levels
User-submitted radon test readings from homes in the Winston Salem area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 11 pCi/L | Winston Salem, NC | 21-50 Years | Partial Basement |
| 4 pCi/L | Winston Salem, NC | 51-99 Years | Full Basement |
Have a radon test result for Winston Salem? Submit your reading to help other homeowners.
Radon Readings Near Winston Salem, NC
Compare radon levels in Winston Salem with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Clemmons | 8.5 mi | 4.00 pCi/L | 2 |
| King | 15.7 mi | 3.00 pCi/L | 1 |
| Walnut Cove | 17.4 mi | 12.00 pCi/L | 1 |
| Pilot Mountain | 26.2 mi | 14.00 pCi/L | 1 |
| Harmony | 29.3 mi | 5.00 pCi/L | 1 |
| Mount Airy | 35.0 mi | 5.00 pCi/L | 1 |
| Asheboro | 36.7 mi | 5.00 pCi/L | 2 |
| Gibsonville | 38.5 mi | 6.00 pCi/L | 1 |
Forsyth County Radon Profile
EPA mapping assigns Forsyth County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 4 cities in Forsyth County average 5.40 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Forsyth County home regardless of zone or a neighbor's results.