South Beloit, IL Radon Levels
Check local South Beloit radon levels and find certified testing and mitigation professionals to keep your home safe
South Beloit, IL Radon Facts
Positioned in Winnebago County within the Rockford Metro area near the Wisconsin border, South Beloit recorded an average radon level of 4.0 pCi/L from limited testing. This reading sits right at the EPA action threshold, making additional testing important for homeowners in zip code 61080. The area's glacial till deposits over limestone bedrock create conditions where radon levels can vary significantly between neighboring properties.
Based on 1 user-submitted radon test for homes in South Beloit, IL. The EPA recommends taking action at or above 4.0 pCi/L.
South Beloit, IL Radon Mitigation
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South Beloit, IL Radon Levels
User-submitted radon test readings from homes in the South Beloit area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 4 pCi/L | South Beloit, IL | 51-99 Years | Partial Basement |
Have a radon test result for South Beloit? Submit your reading to help other homeowners.
Radon Readings Near South Beloit, IL
Compare radon levels in South Beloit with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Rockton | 3.6 mi | 6.00 pCi/L | 1 |
| Roscoe | 4.7 mi | 5.50 pCi/L | 2 |
| Poplar Grove | 12.8 mi | 7.00 pCi/L | 2 |
| Belvidere | 18.0 mi | 4.50 pCi/L | 2 |
| Davis | 19.4 mi | 8.00 pCi/L | 1 |
| Pecatonica | 20.4 mi | 11.00 pCi/L | 1 |
| Harvard | 22.1 mi | 8.00 pCi/L | 2 |
| Stillman Valley | 26.5 mi | 5.00 pCi/L | 1 |
Winnebago County Radon Profile
The bedrock and soils beneath Winnebago County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 4 cities in Winnebago County average 6.40 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Winnebago County.