Cropsey, IL Radon Levels

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.

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

Cropsey, IL Radon Facts

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

County McLean County, IL

Zip Code 61731

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.

8.50

pCi/L area average

Above EPA Action Level

McLean County average: 8.50 pCi/L, based on 8 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Cropsey 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+

Cropsey, 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 Cropsey, IL

No homeowner tests have been submitted for Cropsey 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
Fairbury	9.9 mi	4.00 pCi/L	1
Pontiac	20.2 mi	10.50 pCi/L	2
Le Roy	22.5 mi	5.00 pCi/L	1
Paxton	23.1 mi	4.00 pCi/L	1
Normal	26.7 mi	7.25 pCi/L	4
Bloomington	28.3 mi	11.33 pCi/L	3
Mahomet	28.6 mi	5.00 pCi/L	1
Gifford	32.0 mi	10.00 pCi/L	1

McLean County Radon Profile

McLean 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 McLean County average 8.50 pCi/L across 8 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 McLean County to test, as levels can differ between neighboring homes.

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.

Why are radon readings shown from areas near Cropsey?

No homeowner radon tests have been submitted for Cropsey yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the McLean County average—are the best available indicator of local conditions until Cropsey 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 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.