New London, MO Radon Levels

Q: What EPA Radon Zone is New London in?

New London is in Ralls County, EPA Zone 2.

Q: How much does radon mitigation cost in New London?

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

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

New London, MO Radon Facts

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

County Ralls County, MO

Zip Code 63459

New London in Ralls County along the Mississippi River represents Missouri's EPA Zone 2 moderate radon potential area. The community's location near river bluffs and underlying limestone formations can create variable radon conditions that differ significantly between properties. Given the limited testing data available for zip code 63459, residents should consider individual radon testing to understand their home's specific radon profile.

7.25

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.25 pCi/L, based on 8 tests from 4 nearby cities. No readings have been submitted for New London 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+

New London, MO Radon Mitigation

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

Need Radon Mitigation or Testing in New London?

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Radon Readings Near New London, MO

No homeowner tests have been submitted for New London 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
Hannibal	8.0 mi	6.00 pCi/L	2
Palmyra	15.7 mi	8.00 pCi/L	1
Mexico	39.2 mi	4.00 pCi/L	1
Troy	46.9 mi	8.50 pCi/L	4

Ralls County Radon Profile

Ralls 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. User-submitted readings are still sparse within Ralls County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. 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 Ralls County.

Radon FAQ for New London, MO

What EPA Radon Zone is New London in?

New London and the 63459 zip code are in Ralls 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 New London?

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

Radon mitigation in New London 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 New London?

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.