Arcadia, MO Radon Levels

Q: What EPA Radon Zone is Arcadia in?

Arcadia is in Iron County, EPA Zone 1.

Q: How much does radon mitigation cost in Arcadia?

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

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

Arcadia, MO Radon Facts

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

County Iron County, MO

Zip Code 63621

Found in Iron County within Missouri's Ozark Mountains, Arcadia sits on Precambrian igneous bedrock and residual soils that can generate significant radon concentrations. The area's housing consists of both older mountain homes and newer construction, with many properties featuring partial or full basements. While testing data for zip code 63621 is currently limited, the high-risk EPA Zone 1 classification indicates homeowners should conduct radon testing to assess their exposure levels.

6.50

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.50 pCi/L, based on 8 tests from 5 nearby cities. No readings have been submitted for Arcadia 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+

Arcadia, 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 Arcadia, MO

No homeowner tests have been submitted for Arcadia 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
Farmington	22.8 mi	9.50 pCi/L	2
Bonne Terre	30.3 mi	4.50 pCi/L	2
Ellsinore	38.2 mi	3.00 pCi/L	1
De Soto	43.8 mi	11.00 pCi/L	1
Festus	49.4 mi	5.00 pCi/L	2

Iron County Radon Profile

The bedrock and soils beneath Iron 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 Iron 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 Iron County.

Radon FAQ for Arcadia, MO

What EPA Radon Zone is Arcadia in?

Arcadia and the 63621 zip code are in Iron 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 Arcadia?

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

Radon mitigation in Arcadia 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 Arcadia?

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.