Bonnie, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Bonnie in?

Bonnie is in Jefferson County, EPA Zone 2.

Q: How much does radon mitigation cost in Bonnie?

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

Jefferson County

EPA Zone 2

Small Jefferson County sits on Pennsylvanian-era coal measures and shale deposits in the Illinois Basin that create generally moderate radon conditions. While testing data for the 62816 area is currently limited, residents should conduct individual home testing given the area's geological characteristics. The rural community features scattered older homes and farmsteads, many with partial basements or crawl spaces where radon accumulation patterns can vary significantly from property to property.

Bonnie, IL Radon Mitigation

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

Bonnie, IL Radon Testing

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

Bonnie Radon Facts

Key details about the radon risk profile for Bonnie and the 62816 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Jefferson County, IL

Zip Code

62816

Predicted Screening Level

2–4 pCi/L (Zone 2)

Bonnie and the 62816 zip code are located in Jefferson 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 Bonnie, IL

What EPA Radon Zone is Bonnie in?

Bonnie and the 62816 zip code are in Jefferson 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 Bonnie?

Radon mitigation in Bonnie 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 Bonnie?

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