Fairfax, MO Radon Levels

Q: What EPA Radon Zone is Fairfax in?

Fairfax is in Atchison County, EPA Zone 1.

Q: How much does radon mitigation cost in Fairfax?

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

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

Fairfax, MO Radon Facts

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

County Atchison County, MO

Zip Code 64446

Located in Atchison County in northwestern Missouri, Fairfax sits where glacial till deposits over sedimentary bedrock can create variable radon conditions throughout the region. Testing data specific to this rural community remains limited, making individual property assessment important for local homeowners. Given Missouri's variable radon potential, residents of zip code 64446 should consider professional testing.

5.00

pCi/L area average

Above EPA Action Level

Atchison County average: 5.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Fairfax 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+

Fairfax, MO Radon Mitigation

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

Need Radon Mitigation or Testing in Fairfax?

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Radon Readings Near Fairfax, MO

No homeowner tests have been submitted for Fairfax 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
Rock Port	10.6 mi	5.00 pCi/L	1

Atchison County Radon Profile

The bedrock and soils beneath Atchison County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Atchison County average 5.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Atchison County.

Radon FAQ for Fairfax, MO

What EPA Radon Zone is Fairfax in?

Fairfax and the 64446 zip code are in Atchison 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 Fairfax?

No homeowner radon tests have been submitted for Fairfax yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Atchison County average—are the best available indicator of local conditions until Fairfax 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 Fairfax?

Radon mitigation in Fairfax 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 Fairfax?

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.