Concord, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Concord in?

Concord is in Morgan County, EPA Zone 1.

Q: How much does radon mitigation cost in Concord?

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

Morgan County

EPA Zone 1

Situated in Morgan County within zip code 62631, Concord lies in EPA Zone 1, reflecting high radon potential typical of central Illinois geology. Although local testing data is currently unavailable, the region's glacial deposits over limestone bedrock create favorable conditions for radon gas production. Homeowners should conduct radon testing, especially in properties with basements or lower-level living areas common in traditional Illinois construction.

Concord, IL Radon Mitigation

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

Concord, IL Radon Testing

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

Concord Radon Facts

Key details about the radon risk profile for Concord and the 62631 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Morgan County, IL

Zip Code

62631

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Concord and the 62631 zip code are located in Morgan 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 Concord, IL

What EPA Radon Zone is Concord in?

Concord and the 62631 zip code are in Morgan 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 Concord?

Radon mitigation in Concord 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 Concord?

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