Lee, IL Radon Levels

Q: What EPA Radon Zone is Lee in?

Lee is in Lee County, EPA Zone 1.

Q: Why are radon readings shown from areas near Lee?

No homeowner radon tests have been submitted for Lee yet, so readings from the closest cities and the Lee County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Lee?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

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

Lee, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Lee County, IL

Zip Code 60530

Located in northern Illinois's Lee County within the Chicago Metro region, Lee sits atop glacial deposits that can influence radon gas migration patterns. Testing data for zip code 60530 remains limited, highlighting the need for individual home radon testing. The area's combination of rural farmsteads and small-town housing stock, built on Illinois's characteristic glacial till over limestone bedrock, makes professional testing essential for determining indoor air quality risks.

9.25

pCi/L area average

Above EPA Action Level

Lee County average: 9.25 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Lee itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Lee, IL Radon Mitigation

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

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Radon Readings Near Lee, IL

No homeowner tests have been submitted for Lee yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Rochelle	11.1 mi	13.00 pCi/L	1
Ashton	13.3 mi	4.00 pCi/L	1
Dekalb	13.7 mi	8.75 pCi/L	4
Earlville	14.2 mi	11.00 pCi/L	1
Cortland	17.2 mi	5.00 pCi/L	1
Sycamore	20.1 mi	16.00 pCi/L	2
Amboy	20.2 mi	5.00 pCi/L	1
Plano	23.8 mi	10.00 pCi/L	1

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 Lee, IL

What EPA Radon Zone is Lee in?

Lee and the 60530 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.

Why are radon readings shown from areas near Lee?

No homeowner radon tests have been submitted for Lee yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Lee County average—are the best available indicator of local conditions until Lee homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Lee?

Radon mitigation in Lee 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 Lee?

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.