Oneida, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Oneida in?

Oneida is in Knox County, EPA Zone 1.

Q: How much does radon mitigation cost in Oneida?

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

Knox County

EPA Zone 1

This small community in Knox County sits within Illinois's agricultural heartland, where glacial deposits and underlying sedimentary rock contribute to the state's elevated radon potential. Local housing typically features basements and older foundation systems that can allow radon entry through cracks and gaps in concrete or stone. Since comprehensive radon data for the 61467 zip code area is still developing, residents should test their homes to determine individual radon levels.

Oneida, IL Radon Mitigation

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

Oneida, IL Radon Testing

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

Oneida Radon Facts

Key details about the radon risk profile for Oneida and the 61467 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Knox County, IL

Zip Code

61467

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Oneida and the 61467 zip code are located in Knox 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 Oneida, IL

What EPA Radon Zone is Oneida in?

Oneida and the 61467 zip code are in Knox 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 Oneida?

Radon mitigation in Oneida 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 Oneida?

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