Middletown, MO Radon Levels

Q: What EPA Radon Zone is Middletown in?

Middletown is in Montgomery County, EPA Zone 2.

Q: How much does radon mitigation cost in Middletown?

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

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

Middletown, MO Radon Facts

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

County Montgomery County, MO

Zip Code 63359

Found in Montgomery County within the St. Louis Metro area, this Missouri community sits in EPA Zone 2, suggesting moderate radon potential. Testing data for zip code 63359 remains limited, making professional radon assessment crucial for homeowners in this region. The area's mix of housing types and underlying geological formations warrant individual property testing to determine actual radon levels.

6.35

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.35 pCi/L, based on 20 tests from 10 nearby cities. No readings have been submitted for Middletown 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+

Middletown, 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 Middletown, MO

No homeowner tests have been submitted for Middletown 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
Mexico	27.3 mi	4.00 pCi/L	1
New Haven	37.7 mi	5.00 pCi/L	1
Lake Saint Louis	38.9 mi	5.00 pCi/L	2
O Fallon	41.3 mi	7.75 pCi/L	4
Hannibal	41.5 mi	6.00 pCi/L	2
Hallsville	44.9 mi	5.00 pCi/L	2
Saint Peters	46.8 mi	7.00 pCi/L	1

Montgomery County Radon Profile

Montgomery 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 Montgomery 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 Montgomery County.

Radon FAQ for Middletown, MO

What EPA Radon Zone is Middletown in?

Middletown and the 63359 zip code are in Montgomery 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 Middletown?

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

Radon mitigation in Middletown 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 Middletown?

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.