Farmington, IL Radon Mitigation and Testing

Q: What EPA Radon Zone is Farmington in?

Farmington is in Fulton County, EPA Zone 1.

Q: How much does radon mitigation cost in Farmington?

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

Fulton County

EPA Zone 1

Situated in west-central Illinois's Fulton County within the Peoria metro area, Farmington benefits from Illinois River valley alluvial soils combined with underlying Ordovician limestone that create variable radon conditions. The community's housing mix includes both historic properties and newer residential development typical of the region's downstate communities. Limited testing data for this EPA Zone 1 area emphasizes the importance of individual home testing to assess radon exposure risk.

Farmington, IL Radon Mitigation

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

Farmington, IL Radon Testing

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

Farmington Radon Facts

Key details about the radon risk profile for Farmington and the 61531 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Fulton County, IL

Zip Code

61531

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Farmington and the 61531 zip code are located in Fulton 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 Farmington, IL

What EPA Radon Zone is Farmington in?

Farmington and the 61531 zip code are in Fulton 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 Farmington?

Radon mitigation in Farmington 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 Farmington?

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