Lisle, IL Radon Levels
Check local Lisle radon levels and find certified testing and mitigation professionals to keep your home safe
Lisle, IL Radon Facts
This western Chicago suburb in DuPage County shows an average radon level of 7.25 pCi/L, significantly exceeding the EPA action threshold. Located in zip code 60532, Lisle's homes sit atop glacial till deposits over limestone bedrock, creating ideal conditions for radon accumulation in the area's predominantly basement-equipped housing stock. The community's four test results range from 5.0 to 12.0 pCi/L, indicating consistently elevated levels that warrant mitigation.
Based on 4 user-submitted radon tests for homes in Lisle, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Lisle, IL Radon Mitigation
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Lisle, IL Radon Levels
User-submitted radon test readings from homes in the Lisle area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 6 pCi/L | Lisle, IL | 51-99 Years | — |
| 12 pCi/L | Lisle, IL | 51-99 Years | Full Basement |
| 5 pCi/L | Lisle, IL | 21-50 Years | Full Basement |
Have a radon test result for Lisle? Submit your reading to help other homeowners.
Radon Readings Near Lisle, IL
Compare radon levels in Lisle with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Woodridge | 3.1 mi | 5.00 pCi/L | 1 |
| Downers Grove | 3.8 mi | 14.00 pCi/L | 2 |
| Naperville | 4.5 mi | 6.25 pCi/L | 4 |
| Hinsdale | 4.7 mi | 5.00 pCi/L | 1 |
| Wheaton | 4.9 mi | 4.00 pCi/L | 1 |
| Glen Ellyn | 5.6 mi | 9.00 pCi/L | 3 |
| Westmont | 5.9 mi | 4.00 pCi/L | 1 |
| Warrenville | 6.1 mi | 10.50 pCi/L | 2 |
Dupage County Radon Profile
EPA mapping assigns Dupage 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 25 cities in Dupage County average 6.98 pCi/L across 45 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 Dupage County home regardless of zone or a neighbor's results.