Weldon, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Weldon in?

Weldon is in De Witt County, EPA Zone 1.

Q: How much does radon mitigation cost in Weldon?

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

De Witt County

EPA Zone 1

Nestled in central Illinois prairie within De Witt County, Weldon sits where deep glacial moraine deposits over limestone bedrock contribute to the region's elevated radon potential. The area features a mix of older farmstead properties and mid-century homes, many with full or partial basements that can trap radon gas. While specific testing data for zip code 61882 remains limited, the geological conditions suggest homeowners should conduct radon testing.

Weldon, IL Radon Mitigation

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

Weldon, IL Radon Testing

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

Weldon Radon Facts

Key details about the radon risk profile for Weldon and the 61882 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

De Witt County, IL

Zip Code

61882

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Weldon and the 61882 zip code are located in De Witt County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Weldon, IL

What EPA Radon Zone is Weldon in?

Weldon and the 61882 zip code are in De Witt County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Weldon?

Radon mitigation in Weldon 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 Weldon?

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