Edwardsville, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Edwardsville in?

Edwardsville is in Madison County, EPA Zone 2.

Q: How much does radon mitigation cost in Edwardsville?

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

Madison County

EPA Zone 2

Positioned in Madison County on the Illinois side of the St. Louis Metro area, Edwardsville sits on Mississippi River bluff formations where loess deposits over limestone create variable radon conditions. The community features a diverse housing stock from historic properties to modern suburban developments, with basement construction common throughout zip code 62025. While specific testing data is limited, homeowners should consider radon testing as levels can vary significantly based on individual soil conditions and home construction factors.

Edwardsville, IL Radon Mitigation

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

Edwardsville, IL Radon Testing

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

Edwardsville Radon Facts

Key details about the radon risk profile for Edwardsville and the 62025 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Madison County, IL

Zip Code

62025

Predicted Screening Level

2–4 pCi/L (Zone 2)

Edwardsville and the 62025 zip code are located in Madison 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 Edwardsville, IL

What EPA Radon Zone is Edwardsville in?

Edwardsville and the 62025 zip code are in Madison 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 Edwardsville?

Radon mitigation in Edwardsville 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 Edwardsville?

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