Exeter, MO Radon Levels

Q: What EPA Radon Zone is Exeter in?

Exeter is in Barry County, EPA Zone 2.

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

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

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

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

Exeter, MO Radon Facts

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

County Barry County, MO

Zip Code 65647

Ozark foothills community Exeter sits in Barry County in southwestern Missouri, where limestone bedrock and residual soils create geological conditions that can support radon gas production. The area's housing includes older farmhouses, mobile homes, and newer rural construction, with foundation types varying from full basements to crawl spaces. Since comprehensive radon testing data for the 65647 zip code is currently unavailable, local residents are encouraged to conduct individual radon assessments.

4.33

pCi/L area average

Above EPA Action Level

Barry County average: 4.33 pCi/L, based on 3 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Exeter 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+

Exeter, 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 Exeter, MO

No homeowner tests have been submitted for Exeter 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
Shell Knob	19.7 mi	5.00 pCi/L	2
Golden	20.9 mi	3.00 pCi/L	1
Lampe	29.7 mi	6.50 pCi/L	2
Kimberling City	29.7 mi	7.00 pCi/L	2
Reeds Spring	34.7 mi	6.00 pCi/L	1
Branson	40.0 mi	4.00 pCi/L	1
Webb City	42.3 mi	7.00 pCi/L	1
Carl Junction	47.2 mi	5.00 pCi/L	1

Barry County Radon Profile

Barry 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 2 cities in Barry County average 4.33 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 Barry County.

Radon FAQ for Exeter, MO

What EPA Radon Zone is Exeter in?

Exeter and the 65647 zip code are in Barry 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 Exeter?

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

Radon mitigation in Exeter 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 Exeter?

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.