Cropsey, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Cropsey in?

Cropsey is in McLean County, EPA Zone 1.

Q: How much does radon mitigation cost in Cropsey?

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

McLean County

EPA Zone 1

Found in McLean County within central Illinois prairie, Cropsey sits in EPA Zone 1 where deep glacial deposits over limestone bedrock create favorable conditions for radon production. Testing data remains limited for zip code 61731, making individual home assessment important for residents. The area's agricultural setting features traditional farmhouses and newer homes, many with full basements that can accumulate radon during Illinois winters.

Cropsey, IL Radon Mitigation

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

Cropsey, IL Radon Testing

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

Cropsey Radon Facts

Key details about the radon risk profile for Cropsey and the 61731 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

McLean County, IL

Zip Code

61731

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Cropsey and the 61731 zip code are located in McLean 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 Cropsey, IL

What EPA Radon Zone is Cropsey in?

Cropsey and the 61731 zip code are in McLean 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 Cropsey?

Radon mitigation in Cropsey 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 Cropsey?

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