King Of Prussia, PA Radon Levels
Check local King Of Prussia radon levels and find certified testing and mitigation professionals to keep your home safe
King Of Prussia, PA Radon Facts
This major Montgomery County business hub in the Philadelphia Metro area recorded an average radon level of 7.0 pCi/L from available testing. This reading significantly exceeds the EPA action level, reflecting the area's underlying geology and dense suburban development with predominantly basement construction. Homeowners in zip code 19406 should prioritize radon testing and consider mitigation systems given the consistently elevated readings typical of southeastern Pennsylvania.
Based on 1 user-submitted radon test for homes in King Of Prussia, PA. The EPA recommends taking action at or above 4.0 pCi/L.
King Of Prussia, PA Radon Mitigation
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King Of Prussia, PA Radon Levels
User-submitted radon test readings from homes in the King Of Prussia area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 7 pCi/L | King Of Prussia, PA | 21-50 Years | Full Basement |
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Radon Readings Near King Of Prussia, PA
Compare radon levels in King Of Prussia with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Wayne | 2.8 mi | 5.00 pCi/L | 1 |
| Ardmore | 7.6 mi | 6.00 pCi/L | 2 |
| Broomall | 8.4 mi | 7.00 pCi/L | 2 |
| Bala Cynwyd | 9.4 mi | 1.00 pCi/L | 1 |
| Ambler | 10.2 mi | 4.00 pCi/L | 1 |
| North Wales | 10.4 mi | 7.00 pCi/L | 1 |
| Lansdale | 10.7 mi | 3.00 pCi/L | 1 |
| Drexel Hill | 10.7 mi | 2.50 pCi/L | 2 |
Montgomery County Radon Profile
Because of its underlying geology, Montgomery County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 16 cities in Montgomery County average 8.41 pCi/L across 17 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 Montgomery County home regardless of zone or a neighbor's results.