Wilmington, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Wilmington in?

Wilmington is in Will County, EPA Zone 2.

Q: How much does radon mitigation cost in Wilmington?

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

Will County

EPA Zone 2

Situated in Will County within the southern suburban reaches of the Chicago metro, Wilmington sits on glacial till deposits from the Wisconsin glaciation that create soil conditions highly favorable for radon gas production and migration. While radon testing data for zip code 60481 remains limited, the area's geological characteristics and typical Midwest housing with full basements suggest homeowners should conduct comprehensive testing. This historic river town's mix of 19th-century homes and newer residential development may show varying radon levels depending on construction era and foundation type.

Wilmington, IL Radon Mitigation

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

Wilmington, IL Radon Testing

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

Wilmington Radon Facts

Key details about the radon risk profile for Wilmington and the 60481 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Will County, IL

Zip Code

60481

Predicted Screening Level

2–4 pCi/L (Zone 2)

Wilmington and the 60481 zip code are located in Will 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 Wilmington, IL

What EPA Radon Zone is Wilmington in?

Wilmington and the 60481 zip code are in Will 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 Wilmington?

Radon mitigation in Wilmington 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 Wilmington?

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