Farmington, KY Radon Levels

Q: What EPA Radon Zone is Farmington in?

Farmington is in Graves County, EPA Zone 3.

Q: Why are radon readings shown from areas near Farmington?

No homeowner radon tests have been submitted for Farmington yet, so readings from the closest cities and the Graves County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

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, KY Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Graves County, KY

Zip Code 42040

Located in western Kentucky's Graves County, Farmington sits in EPA Zone 3 where radon levels are typically lower but can still vary based on local geological conditions. The rural community's housing characteristics and regional soil formations influence indoor radon patterns throughout the area. Given the absence of comprehensive testing data for zip code 42040, residents should consider professional radon testing to establish individual property baselines.

9.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 9.00 pCi/L, based on 1 test from 1 nearby city. No readings have been submitted for Farmington yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Farmington, KY 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, KY

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
Eddyville	41.4 mi	9.00 pCi/L	1

Graves County Radon Profile

Local geology places Graves County in EPA Radon Zone 3, where predicted indoor radon averages fall below 2 pCi/L — though no county is risk-free. Few homeowner tests have been logged inside Graves County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Graves County to test, as levels can differ between neighboring homes.

Radon FAQ for Farmington, KY

What EPA Radon Zone is Farmington in?

Farmington and the 42040 zip code are in Graves County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 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 Graves 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.