Helena, MO Radon Levels

Q: What EPA Radon Zone is Helena in?

Helena is in Andrew County, EPA Zone 1.

Q: Why are radon readings shown from areas near Helena?

No homeowner radon tests have been submitted for Helena yet, so readings from the closest cities and the Andrew County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Helena?

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

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

Helena, MO Radon Facts

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

County Andrew County, MO

Zip Code 64459

Located in Andrew County in northwest Missouri, Helena sits on glacial till deposits that can contribute to moderate radon potential in the region. The rural community features traditional Midwest farmsteads and rural residences with varying foundation styles. Since radon testing data for zip code 64459 is currently limited, homeowners should prioritize testing to understand their specific radon exposure levels.

6.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.00 pCi/L, based on 3 tests from 2 nearby cities. No readings have been submitted for Helena 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+

Helena, 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 Helena, MO

No homeowner tests have been submitted for Helena 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
Kearney	41.8 mi	5.00 pCi/L	1
Liberty	48.7 mi	6.50 pCi/L	2

Andrew County Radon Profile

The bedrock and soils beneath Andrew County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. User-submitted readings are still sparse within Andrew 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 Andrew County.

Radon FAQ for Helena, MO

What EPA Radon Zone is Helena in?

Helena and the 64459 zip code are in Andrew 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 Helena?

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

Radon mitigation in Helena 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 Helena?

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.