Guilford, MO Radon Levels

Q: What EPA Radon Zone is Guilford in?

Guilford is in Nodaway County, EPA Zone 1.

Q: How much does radon mitigation cost in Guilford?

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

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

Guilford, MO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Nodaway County, MO

Zip Code 64457

This small agricultural community in Nodaway County rests on glacial till deposits over Pennsylvanian limestone, creating geological conditions favorable for radon production. Testing data remains sparse for zip code 64457, making professional radon assessment crucial for area residents. Guilford's mix of historic farmsteads and rural residential properties may experience varying radon levels depending on foundation construction and soil contact.

5.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 5.00 pCi/L, based on 1 test from 1 nearby city. No readings have been submitted for Guilford 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+

Guilford, 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 Guilford, MO

No homeowner tests have been submitted for Guilford 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
Rock Port	47.3 mi	5.00 pCi/L	1

Nodaway County Radon Profile

Because of its underlying geology, Nodaway County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Direct test data for Nodaway 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 Nodaway County home regardless of zone or a neighbor's results.

Radon FAQ for Guilford, MO

What EPA Radon Zone is Guilford in?

Guilford and the 64457 zip code are in Nodaway County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Guilford?

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

Radon mitigation in Guilford 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 Guilford?

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.