Lyndon, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Lyndon in?

Lyndon is in Whiteside County, EPA Zone 1.

Q: How much does radon mitigation cost in Lyndon?

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

Whiteside County

EPA Zone 1

Small-town Whiteside County in northwestern Illinois features glacial till deposits over sedimentary bedrock that can facilitate radon accumulation in homes. While specific testing data for ZIP code 61261 remains limited, the area's geological composition suggests moderate radon potential similar to other communities in the Illinois-Iowa border region. Local homeowners should prioritize radon testing, especially in properties with basements common to this part of Illinois.

Lyndon, IL Radon Mitigation

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

Lyndon, IL Radon Testing

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

Lyndon Radon Facts

Key details about the radon risk profile for Lyndon and the 61261 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Whiteside County, IL

Zip Code

61261

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Lyndon and the 61261 zip code are located in Whiteside 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 Lyndon, IL

What EPA Radon Zone is Lyndon in?

Lyndon and the 61261 zip code are in Whiteside 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 Lyndon?

Radon mitigation in Lyndon 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 Lyndon?

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