Cosby, MO Radon Levels

Q: What EPA Radon Zone is Cosby in?

Cosby is in Andrew County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Cosby yet, so readings from the closest cities and the Andrew 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 Cosby?

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

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

Cosby, MO Radon Facts

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

County Andrew County, MO

Zip Code 64436

Rural Andrew County contains this small northwestern Missouri community, where loess deposits over limestone bedrock create variable radon potential. Testing data remains limited for the 64436 zip code area, emphasizing the importance of individual home testing for residents. Andrew County's agricultural landscape features scattered farmsteads with diverse foundation types that can influence radon entry rates.

6.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.00 pCi/L, based on 3 tests from 2 nearby cities. No readings have been submitted for Cosby 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+

Cosby, MO 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 Cosby, MO

No homeowner tests have been submitted for Cosby 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
Kearney	38.3 mi	5.00 pCi/L	1
Liberty	44.6 mi	6.50 pCi/L	2

Andrew County Radon Profile

The bedrock and soils beneath Andrew County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. User-submitted readings are still sparse within Andrew County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. 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 Andrew County.

Radon FAQ for Cosby, MO

What EPA Radon Zone is Cosby in?

Cosby and the 64436 zip code are in Andrew 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 Cosby?

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

Radon mitigation in Cosby 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 Cosby?

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.