Clarksville, MO Radon Levels

Q: What EPA Radon Zone is Clarksville in?

Clarksville is in Pike County, EPA Zone 2.

Q: How much does radon mitigation cost in Clarksville?

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

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

Clarksville, MO Radon Facts

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

County Pike County, MO

Zip Code 63336

Found in Pike County along the Mississippi River corridor, Clarksville benefits from Missouri's variable geology of limestone karst and river valley deposits. The community's EPA Zone 2 classification suggests moderate radon potential across the region. Since comprehensive testing data for zip code 63336 remains limited, homeowners should test their properties to understand their specific radon exposure risk.

7.94

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.94 pCi/L, based on 16 tests from 8 nearby cities. No readings have been submitted for Clarksville 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+

Clarksville, 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 Clarksville, MO

No homeowner tests have been submitted for Clarksville 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
Troy	23.9 mi	8.50 pCi/L	4
Hannibal	34.5 mi	6.00 pCi/L	2
Lake Saint Louis	39.0 mi	5.00 pCi/L	2
O Fallon	40.1 mi	7.75 pCi/L	4
Saint Peters	42.6 mi	7.00 pCi/L	1
Palmyra	44.4 mi	8.00 pCi/L	1
Saint Charles	44.9 mi	5.00 pCi/L	1
Hazelwood	49.6 mi	20.00 pCi/L	1

Pike County Radon Profile

EPA mapping assigns Pike 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 Pike 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 Pike County home regardless of zone or a neighbor's results.

Radon FAQ for Clarksville, MO

What EPA Radon Zone is Clarksville in?

Clarksville and the 63336 zip code are in Pike 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 Clarksville?

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

Radon mitigation in Clarksville 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 Clarksville?

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.