Walsh, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Walsh in?

Walsh is in Randolph County, EPA Zone 2.

Q: How much does radon mitigation cost in Walsh?

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

Randolph County

EPA Zone 2

Rural Randolph County includes this small community where Mississippi River floodplain deposits over limestone bedrock create moderate radon potential. The area's agricultural character features scattered farmsteads and rural homes, many with partial basements typical of southern Illinois construction. Given the limited testing data available for zip code 62297, homeowners should consider professional radon testing to establish baseline levels.

Walsh, IL Radon Mitigation

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

Walsh, IL Radon Testing

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

Walsh Radon Facts

Key details about the radon risk profile for Walsh and the 62297 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Randolph County, IL

Zip Code

62297

Predicted Screening Level

2–4 pCi/L (Zone 2)

Walsh and the 62297 zip code are located in Randolph 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 Walsh, IL

What EPA Radon Zone is Walsh in?

Walsh and the 62297 zip code are in Randolph 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 Walsh?

Radon mitigation in Walsh 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 Walsh?

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