Fredericktown, MO Radon Levels

Q: What EPA Radon Zone is Fredericktown in?

Fredericktown is in Madison County, EPA Zone 2.

Q: How much does radon mitigation cost in Fredericktown?

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

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

Fredericktown, MO Radon Facts

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

County Madison County, MO

Zip Code 63645

Situated in the Ozark foothills of Madison County, Fredericktown lies in southeastern Missouri where Precambrian granite and rhyolite bedrock can influence local radon conditions. This rural community features predominantly older homes with varying foundation types, from full basements to crawl spaces typical of the region. Since detailed radon testing data isn't widely available, homeowners should conduct independent testing to assess their specific exposure levels.

6.58

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.58 pCi/L, based on 12 tests from 7 nearby cities. No readings have been submitted for Fredericktown 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+

Fredericktown, 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 Fredericktown, MO

No homeowner tests have been submitted for Fredericktown 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
Farmington	20.2 mi	9.50 pCi/L	2
Bonne Terre	32.2 mi	4.50 pCi/L	2
Jackson	38.2 mi	7.00 pCi/L	2
Ellsinore	44.0 mi	3.00 pCi/L	1
De Soto	45.1 mi	11.00 pCi/L	1
Cape Girardeau	45.8 mi	6.50 pCi/L	2
Festus	48.4 mi	5.00 pCi/L	2

Madison County Radon Profile

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

Radon FAQ for Fredericktown, MO

What EPA Radon Zone is Fredericktown in?

Fredericktown and the 63645 zip code are in Madison 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 Fredericktown?

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

Radon mitigation in Fredericktown 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 Fredericktown?

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.