Annapolis, MO Radon Levels

Q: What EPA Radon Zone is Annapolis in?

Annapolis is in Iron County, EPA Zone 1.

Q: How much does radon mitigation cost in Annapolis?

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

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

Annapolis, MO Radon Facts

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

County Iron County, MO

Zip Code 63620

Tucked away in Missouri's Iron County, Annapolis sits within the Ozark region where ancient granite and volcanic rock formations typically contribute to the state's elevated radon potential. The rural community's scattered housing includes both historic properties and newer rural development throughout the 63620 area. Given the lack of comprehensive testing data for this region, residents should conduct professional radon testing to determine their individual property's exposure levels.

6.17

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.17 pCi/L, based on 6 tests from 4 nearby cities. No readings have been submitted for Annapolis 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+

Annapolis, 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 Annapolis?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Iron County Pros

1-800-299-3578 636-205-4618 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Annapolis, MO

No homeowner tests have been submitted for Annapolis 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	29.8 mi	9.50 pCi/L	2
Ellsinore	31.6 mi	3.00 pCi/L	1
Bonne Terre	36.8 mi	4.50 pCi/L	2
Salem	49.3 mi	6.00 pCi/L	1

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 Annapolis, MO

What EPA Radon Zone is Annapolis in?

Annapolis and the 63620 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 Annapolis?

No homeowner radon tests have been submitted for Annapolis 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 Annapolis 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 Annapolis?

Radon mitigation in Annapolis 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 Annapolis?

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.