Carthage, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Carthage in?

Carthage is in Hancock County, EPA Zone 1.

Q: How much does radon mitigation cost in Carthage?

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

Hancock County

EPA Zone 1

Western Illinois community Carthage in Hancock County sits along the Mississippi River valley where alluvial deposits over limestone bedrock create variable radon conditions. While testing data for zip code 62321 is limited, the area's EPA Zone 1 status indicates significant potential for elevated radon levels. Local homeowners should prioritize testing, especially given the region's typical housing stock with full basements that can trap radon gas.

Carthage, IL Radon Mitigation

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

Carthage, IL Radon Testing

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

Carthage Radon Facts

Key details about the radon risk profile for Carthage and the 62321 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Hancock County, IL

Zip Code

62321

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Carthage and the 62321 zip code are located in Hancock 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 Carthage, IL

What EPA Radon Zone is Carthage in?

Carthage and the 62321 zip code are in Hancock 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 Carthage?

Radon mitigation in Carthage 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 Carthage?

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