Stockton, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Stockton in?

Stockton is in Jo Daviess County, EPA Zone 1.

Q: How much does radon mitigation cost in Stockton?

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

Jo Daviess County

EPA Zone 1

Tucked away in Jo Daviess County's rolling hills, Stockton (61085) sits above dolomite bedrock formations typical of northwestern Illinois' driftless region. Although specific radon testing data for this rural community is currently unavailable, the area's geological profile and Illinois' EPA Zone 1 classification suggest homeowners should test their properties. Local homes ranging from historic farmhouses to newer rural construction may show varying radon accumulation patterns.

Stockton, IL Radon Mitigation

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

Stockton, IL Radon Testing

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

Stockton Radon Facts

Key details about the radon risk profile for Stockton and the 61085 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Jo Daviess County, IL

Zip Code

61085

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Stockton and the 61085 zip code are located in Jo Daviess 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 Stockton, IL

What EPA Radon Zone is Stockton in?

Stockton and the 61085 zip code are in Jo Daviess 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 Stockton?

Radon mitigation in Stockton 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 Stockton?

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