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Dixon, IL Radon Levels

Check local Dixon radon levels and find certified testing and mitigation professionals to keep your home safe


Dixon, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Lee County, IL
Zip Code 61021
Avg. User Level 14.00 pCi/L
User Tests 2

Dixon in Lee County shows an average radon level of 14.0 pCi/L, well above the EPA action threshold of 4.0 pCi/L. This northwestern Illinois community, with readings ranging from 8.0 to 20.0 pCi/L, sits in glacial till deposits that create highly favorable conditions for radon accumulation in homes with basements. Residents in zip code 61021 should prioritize radon testing and mitigation given these elevated levels.

14.00
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Dixon, IL. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Dixon, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Dixon, IL Radon Levels

User-submitted radon test readings from homes in the Dixon area.

Radon LevelCityHome AgeFoundation
20 pCi/L Dixon, IL 51-99 Years Full Basement
8 pCi/L Dixon, IL 21-50 Years Full Basement

Have a radon test result for Dixon? Submit your reading to help other homeowners.

Radon Readings Near Dixon, IL

Compare radon levels in Dixon with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Rock Falls 11.9 mi 6.00 pCi/L 2
Amboy 12.3 mi 5.00 pCi/L 1
Mount Morris 14.1 mi 4.00 pCi/L 1
Ashton 14.5 mi 4.00 pCi/L 1
Walnut 22.2 mi 5.00 pCi/L 1
Rochelle 22.2 mi 13.00 pCi/L 1
Byron 22.6 mi 11.50 pCi/L 2
Lanark 24.2 mi 12.00 pCi/L 3

Lee County Radon Profile

Lee County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 3 cities in Lee County average 9.25 pCi/L across 4 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Lee County to test, as levels can differ between neighboring homes.

Radon FAQ for Dixon, IL

What is the average radon level in Dixon, IL?
Based on 2 user-submitted tests, the average radon level in Dixon is 14.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Dixon in?
Dixon and the 61021 zip code are in Lee County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Dixon?
Radon mitigation in Dixon typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Dixon?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.