Coulterville, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Coulterville in?

Coulterville is in Perry County, EPA Zone 2.

Q: How much does radon mitigation cost in Coulterville?

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

Perry County

EPA Zone 2

Southern Illinois community Coulterville in Perry County falls within EPA Zone 2 for moderate radon potential across the region. The area's coal-bearing shale and sandstone formations typical of the Illinois Basin create geological conditions that can facilitate radon gas movement, though levels are generally lower than northern Illinois. With testing data for zip code 62237 currently limited, homeowners should consider radon testing to establish their individual risk profile.

Coulterville, IL Radon Mitigation

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

Coulterville, IL Radon Testing

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

Coulterville Radon Facts

Key details about the radon risk profile for Coulterville and the 62237 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Perry County, IL

Zip Code

62237

Predicted Screening Level

2–4 pCi/L (Zone 2)

Coulterville and the 62237 zip code are located in Perry County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Coulterville, IL

What EPA Radon Zone is Coulterville in?

Coulterville and the 62237 zip code are in Perry County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Coulterville?

Radon mitigation in Coulterville 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 Coulterville?

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