Tennessee, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Tennessee in?

Tennessee is in McDonough County, EPA Zone 1.

Q: How much does radon mitigation cost in Tennessee?

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

McDonough County

EPA Zone 1

Tennessee, a small community in McDonough County, sits atop Illinois prairie soils and limestone bedrock formations that can contribute to radon accumulation in local homes. The area features a mix of older farmhouses and newer rural residences, many with basement foundations that provide pathways for radon entry. Although comprehensive testing data for zip code 62374 is currently limited, residents should test their homes given the county's geological conditions favorable for radon production.

Tennessee, IL Radon Mitigation

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

Tennessee, IL Radon Testing

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

Tennessee Radon Facts

Key details about the radon risk profile for Tennessee and the 62374 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

McDonough County, IL

Zip Code

62374

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Tennessee and the 62374 zip code are located in McDonough 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 Tennessee, IL

What EPA Radon Zone is Tennessee in?

Tennessee and the 62374 zip code are in McDonough 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 Tennessee?

Radon mitigation in Tennessee 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 Tennessee?

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