Farmington, IL Radon Levels

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.

Check local Farmington radon levels and find certified testing and mitigation professionals to keep your home safe

Farmington, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Fulton County, IL

Zip Code 61531

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.

6.00

pCi/L area average

Above EPA Action Level

Fulton County average: 6.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Farmington itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Farmington, IL Radon Mitigation

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

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Radon Readings Near Farmington, IL

No homeowner tests have been submitted for Farmington yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Cuba	14.8 mi	6.00 pCi/L	1
Mapleton	17.3 mi	8.00 pCi/L	1
Knoxville	20.5 mi	8.00 pCi/L	1
Peoria	21.7 mi	5.00 pCi/L	1
Dunlap	23.5 mi	7.00 pCi/L	1
East Peoria	25.3 mi	8.00 pCi/L	3
Metamora	32.4 mi	7.50 pCi/L	2
Monmouth	35.6 mi	8.00 pCi/L	1

Fulton County Radon Profile

Fulton County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 1 city in Fulton County average 6.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Fulton County to test, as levels can differ between neighboring homes.

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.

Why are radon readings shown from areas near Farmington?

No homeowner radon tests have been submitted for Farmington yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Fulton County average—are the best available indicator of local conditions until Farmington homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

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.