Galesburg, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Galesburg in?

Galesburg is in Knox County, EPA Zone 1.

Q: How much does radon mitigation cost in Galesburg?

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

Knox County's county seat, Galesburg sits on deep glacial deposits over Pennsylvanian limestone bedrock that characterizes west-central Illinois geology. Testing data for the 61401 area remains limited, though homeowners should be aware of the region's EPA Zone 1 high radon potential. The city's historic housing stock, including many late-1800s and early-1900s homes with full basements, may be particularly susceptible to radon accumulation.

Galesburg, IL Radon Mitigation

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

Galesburg, IL Radon Testing

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

Galesburg Radon Facts

Key details about the radon risk profile for Galesburg and the 61401 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Knox County, IL

Zip Code

61401

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Galesburg and the 61401 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 Galesburg, IL

What EPA Radon Zone is Galesburg in?

Galesburg and the 61401 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 Galesburg?

Radon mitigation in Galesburg 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 Galesburg?

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