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Shell Knob, MO Radon Levels

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


Shell Knob, MO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Barry County, MO
Zip Code 65747
Avg. User Level 5.00 pCi/L
User Tests 2

This Barry County community along Table Rock Lake has recorded an average radon level of 5.0 pCi/L, slightly above the EPA action threshold despite the area's generally moderate radon potential from underlying Mississippian limestone. Located in zip code 65747 within Missouri's Ozark region, Shell Knob's consistent readings suggest homeowners should maintain awareness of radon levels. The area's mix of lakefront properties and traditional Ozark construction presents varied foundation types that can influence indoor radon concentrations.

5.00
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Shell Knob, MO. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Shell Knob, MO Radon Mitigation

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

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Shell Knob, MO Radon Levels

User-submitted radon test readings from homes in the Shell Knob area.

Radon LevelCityHome AgeFoundation
5 pCi/L Shell Knob, MO 21-50 Years Full Basement

Have a radon test result for Shell Knob? Submit your reading to help other homeowners.

Radon Readings Near Shell Knob, MO

Compare radon levels in Shell Knob with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Golden 3.7 mi 3.00 pCi/L 1
Lampe 10.0 mi 6.50 pCi/L 2
Kimberling City 10.5 mi 7.00 pCi/L 2
Reeds Spring 16.4 mi 6.00 pCi/L 1
Branson 21.2 mi 4.00 pCi/L 1
Springfield 43.8 mi 7.00 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 Shell Knob, MO

What is the average radon level in Shell Knob, MO?
Based on 2 user-submitted tests, the average radon level in Shell Knob is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Shell Knob in?
Shell Knob and the 65747 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.
How much does radon mitigation cost in Shell Knob?
Radon mitigation in Shell Knob 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 Shell Knob?
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.