Duke, MO Radon Levels

Q: What EPA Radon Zone is Duke in?

Duke is in Phelps County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Duke yet, so readings from the closest cities and the Phelps 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 Duke?

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

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

Duke, MO Radon Facts

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

County Phelps County, MO

Zip Code 65461

Set in Phelps County in Missouri's Ozark region, Duke sits on Paleozoic limestone and dolomite formations that can produce moderate radon levels. Testing data for zip code 65461 is currently sparse, making home testing advisable for area residents. The region's karst topography and mix of rural housing types create conditions where radon concentrations can vary widely even within the same neighborhood.

4.50

pCi/L area average

Above EPA Action Level

Phelps County average: 4.50 pCi/L, based on 2 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Duke itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Duke, 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 Duke, MO

No homeowner tests have been submitted for Duke 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
Waynesville	13.2 mi	7.00 pCi/L	2
Saint Robert	13.3 mi	7.00 pCi/L	1
Rolla	24.2 mi	4.50 pCi/L	2
Salem	26.7 mi	6.00 pCi/L	1
Cuba	44.4 mi	5.00 pCi/L	1
Leasburg	49.1 mi	4.00 pCi/L	1

Phelps County Radon Profile

Phelps 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. Homeowner-submitted tests from 1 city in Phelps County average 4.50 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. 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 Phelps County.

Radon FAQ for Duke, MO

What EPA Radon Zone is Duke in?

Duke and the 65461 zip code are in Phelps 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 Duke?

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

Radon mitigation in Duke 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 Duke?

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.