Gorham, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Gorham in?

Gorham is in Jackson County, EPA Zone 2.

Q: How much does radon mitigation cost in Gorham?

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

Jackson County

EPA Zone 2

Found in Jackson County in southern Illinois, Gorham sits on Pennsylvanian-era coal measures and shale deposits that typically produce moderate radon levels. With testing data currently unavailable for the 62940 zip code, individual home testing remains important for residents. The area's mixed housing stock, from historic farmhouses to newer rural construction, can show varying radon accumulation patterns.

Gorham, IL Radon Mitigation

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

Gorham, IL Radon Testing

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

Gorham Radon Facts

Key details about the radon risk profile for Gorham and the 62940 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Jackson County, IL

Zip Code

62940

Predicted Screening Level

2–4 pCi/L (Zone 2)

Gorham and the 62940 zip code are located in Jackson 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 Gorham, IL

What EPA Radon Zone is Gorham in?

Gorham and the 62940 zip code are in Jackson 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 Gorham?

Radon mitigation in Gorham 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 Gorham?

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