Fremont, MO Radon Levels

Q: What EPA Radon Zone is Fremont in?

Fremont is in Carter County, EPA Zone 2.

Q: How much does radon mitigation cost in Fremont?

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

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

Fremont, MO Radon Facts

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

County Carter County, MO

Zip Code 63941

Located in rural Carter County in the Missouri Ozarks, Fremont sits on sedimentary rock formations that can contribute to radon gas production and migration. Testing data for this zip code 63941 community remains limited, making individual property assessment crucial for residents. Missouri's EPA Zone 2 designation reflects moderate radon potential, with levels varying based on local geological conditions and home construction factors.

3.00

pCi/L area average

Below EPA Action Level

Carter County average: 3.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Fremont 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+

Fremont, 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 Fremont, MO

No homeowner tests have been submitted for Fremont 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
Ellsinore	21.9 mi	3.00 pCi/L	1
West Plains	42.3 mi	4.00 pCi/L	1

Carter County Radon Profile

Carter 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 1 city in Carter County average 3.00 pCi/L across 1 test — below the EPA's 4 pCi/L action level, though radon varies sharply from home to home. 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 Carter County.

Radon FAQ for Fremont, MO

What EPA Radon Zone is Fremont in?

Fremont and the 63941 zip code are in Carter 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 Fremont?

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

Radon mitigation in Fremont 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 Fremont?

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.