Sumner, MO Radon Levels

Q: What EPA Radon Zone is Sumner in?

Sumner is in Chariton County, EPA Zone 2.

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

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

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

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

Sumner, MO Radon Facts

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

County Chariton County, MO

Zip Code 64681

Located in Chariton County within Missouri's prairie region (zip code 64681), Sumner sits above limestone and shale formations that can influence radon gas patterns in the area. Testing data for this small community is currently sparse, highlighting the importance of individual home testing for residents. Missouri's diverse geological landscape means radon levels can differ substantially between neighboring properties.

9.67

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 9.67 pCi/L, based on 3 tests from 3 nearby cities. No readings have been submitted for Sumner 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+

Sumner, 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 Sumner, MO

No homeowner tests have been submitted for Sumner 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
Meadville	9.5 mi	18.00 pCi/L	1
Carrollton	24.5 mi	6.00 pCi/L	1
Richmond	47.9 mi	5.00 pCi/L	1

Chariton County Radon Profile

EPA mapping assigns Chariton County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Chariton County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Chariton County home regardless of zone or a neighbor's results.

Radon FAQ for Sumner, MO

What EPA Radon Zone is Sumner in?

Sumner and the 64681 zip code are in Chariton 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 Sumner?

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

Radon mitigation in Sumner 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 Sumner?

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.