Davisville, MO Radon Levels

Q: What EPA Radon Zone is Davisville in?

Davisville is in Crawford County, EPA Zone 2.

Q: How much does radon mitigation cost in Davisville?

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

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

Davisville, MO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Crawford County, MO

Zip Code 65456

Found in Crawford County in Missouri's Ozark region, Davisville sits atop dolomite and limestone bedrock that can contribute to elevated radon levels. The area's karst topography and older housing stock, typical of rural Missouri communities, can create pathways for radon entry into homes. While specific testing data for zip code 65456 remains limited, the geological context strongly suggests that homeowners should test their properties for radon.

5.00

pCi/L area average

Above EPA Action Level

Crawford County average: 5.00 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Davisville 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+

Davisville, 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 Davisville, MO

No homeowner tests have been submitted for Davisville 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
Salem	20.8 mi	6.00 pCi/L	1
Leasburg	21.6 mi	4.00 pCi/L	1
Cuba	23.7 mi	5.00 pCi/L	1
Bourbon	26.6 mi	6.00 pCi/L	1
Rolla	31.9 mi	4.50 pCi/L	2
Bonne Terre	37.0 mi	4.50 pCi/L	2
De Soto	42.6 mi	11.00 pCi/L	1
Farmington	43.8 mi	9.50 pCi/L	2

Crawford County Radon Profile

Crawford County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 3 cities in Crawford County average 5.00 pCi/L across 3 tests — 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 Crawford County.

Radon FAQ for Davisville, MO

What EPA Radon Zone is Davisville in?

Davisville and the 65456 zip code are in Crawford County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Davisville?

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

Radon mitigation in Davisville 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 Davisville?

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.