Sycamore, IL Radon Levels
Check local Sycamore radon levels and find certified testing and mitigation professionals to keep your home safe
Sycamore, IL Radon Facts
Located in DeKalb County within the Chicago Metro area, Sycamore shows elevated radon readings with an average of 16.0 pCi/L that significantly exceeds EPA action levels. The city's position in the glacial till deposits from Wisconsin glaciation creates highly favorable conditions for radon production and migration. Homeowners in zip code 60178 should prioritize radon testing and mitigation, particularly in the area's predominantly basement-equipped suburban homes built from the 1950s through 1990s.
Based on 2 user-submitted radon tests for homes in Sycamore, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Sycamore, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Sycamore, IL Radon Levels
User-submitted radon test readings from homes in the Sycamore area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 14 pCi/L | Sycamore, IL | 0-20 Years | Full Basement |
| 18 pCi/L | Sycamore, IL | 21-50 Years | Full Basement |
Have a radon test result for Sycamore? Submit your reading to help other homeowners.
Radon Readings Near Sycamore, IL
Compare radon levels in Sycamore with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Cortland | 4.9 mi | 5.00 pCi/L | 1 |
| Dekalb | 7.0 mi | 8.75 pCi/L | 4 |
| Kingston | 8.8 mi | 13.00 pCi/L | 1 |
| Marengo | 18.0 mi | 5.50 pCi/L | 2 |
| Saint Charles | 18.1 mi | 18.00 pCi/L | 1 |
| Huntley | 18.7 mi | 5.75 pCi/L | 4 |
| Elgin | 19.5 mi | 11.50 pCi/L | 2 |
| Sugar Grove | 19.9 mi | 7.00 pCi/L | 1 |
Dekalb County Radon Profile
Because of its underlying geology, Dekalb 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 4 cities in Dekalb County average 10.63 pCi/L across 8 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 Dekalb County home regardless of zone or a neighbor's results.