Rio, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Rio in?

Rio is in Knox County, EPA Zone 1.

Q: How much does radon mitigation cost in Rio?

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 Knox County community in western Illinois sits within the Davenport Metro area atop glacial deposits over limestone bedrock that can contribute to variable radon levels. While specific testing data for zip code 61472 is not available, the geological conditions common to west-central Illinois warrant attention from homeowners. The EPA Zone 1 classification indicates elevated radon potential, making professional testing particularly important for homes with basement foundations.

Rio, IL Radon Mitigation

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

Rio, IL Radon Testing

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

Rio Radon Facts

Key details about the radon risk profile for Rio and the 61472 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Knox County, IL

Zip Code

61472

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Rio and the 61472 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 Rio, IL

What EPA Radon Zone is Rio in?

Rio and the 61472 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 Rio?

Radon mitigation in Rio 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 Rio?

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