Middletown, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Middletown in?

Middletown is in Logan County, EPA Zone 1.

Q: How much does radon mitigation cost in Middletown?

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

Logan County

EPA Zone 1

This Logan County community in central Illinois sits within the Springfield Metro area, where deep glacial moraine deposits over limestone bedrock contribute to moderate-to-high radon potential. Testing data remains limited for zip code 62666, making professional radon testing essential for homeowners in this prairie region. Given the area's geological characteristics and housing stock of older homes with full basements, establishing radon levels through testing is strongly recommended.

Middletown, IL Radon Mitigation

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

Middletown, IL Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Middletown Radon Facts

Key details about the radon risk profile for Middletown and the 62666 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Logan County, IL

Zip Code

62666

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Middletown and the 62666 zip code are located in Logan County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Middletown, IL

What EPA Radon Zone is Middletown in?

Middletown and the 62666 zip code are in Logan 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 Middletown?

Radon mitigation in Middletown 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 Middletown?

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.

Most Active Radon Markets in Illinois

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Buffalo Grove	6.10 pCi/L	10
Crystal Lake	7.25 pCi/L	8
Lake Zurich	6.00 pCi/L	7
Grayslake	5.00 pCi/L	7
New Lenox	10.17 pCi/L	6
Park Ridge	7.00 pCi/L	6
Arlington Heights	6.17 pCi/L	6
Waterloo	9.20 pCi/L	5
Palatine	7.80 pCi/L	5
Round Lake	7.80 pCi/L	5
Northbrook	6.20 pCi/L	5
Mchenry	11.00 pCi/L	4
Dekalb	8.75 pCi/L	4
Columbia	8.00 pCi/L	4
Lisle	7.25 pCi/L	4
Normal	7.25 pCi/L	4
Antioch	7.00 pCi/L	4
Elk Grove Village	7.00 pCi/L	4
Aurora	6.75 pCi/L	4
Hoffman Estates	6.75 pCi/L	4