Bethesda, MD Radon Levels

Q: What is the average radon level in Bethesda, MD?

Based on 1 user-submitted tests, the average radon level is 12.00 pCi/L.

Q: What EPA Radon Zone is Bethesda in?

Bethesda is in Montgomery County, EPA Zone 1.

Q: How much does radon mitigation cost in Bethesda?

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

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

Bethesda, MD Radon Facts

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

County Montgomery County, MD

Zip Code 20814

Avg. User Level 12.00 pCi/L

User Tests 1

This affluent Washington Metro suburb in Montgomery County shows an average radon level of 12.0 pCi/L based on initial testing, substantially exceeding EPA action levels. The community's upscale housing stock includes many homes built between the 1940s-1980s with finished basements, sitting atop Piedmont geology that contributes to EPA Zone 1 radon conditions. With such elevated readings documented across zip codes 20814, 20816, and 20817, all Bethesda residents should test their homes and strongly consider professional mitigation systems.

12.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Bethesda, MD. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Bethesda, MD Radon Mitigation

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Bethesda, MD Radon Levels

User-submitted radon test readings from homes in the Bethesda area.

Radon Level	City	Home Age	Foundation
12 pCi/L	Bethesda, MD	51-99 Years	Full Basement

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Radon FAQ for Bethesda, MD

What is the average radon level in Bethesda, MD?

Based on 1 user-submitted test, the average radon level in Bethesda is 12.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Bethesda in?

Bethesda and the 20814 zip code are in Montgomery 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.

How much does radon mitigation cost in Bethesda?

Radon mitigation in Bethesda 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 Bethesda?

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.

Most Active Radon Markets in Maryland

Cities in Maryland with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Frederick	8.29 pCi/L	7
Potomac	9.00 pCi/L	6
Hagerstown	8.67 pCi/L	6
Westminster	14.50 pCi/L	4
Baltimore	7.00 pCi/L	4
Annapolis	4.25 pCi/L	4
Upper Marlboro	15.00 pCi/L	3
Edgewater	12.67 pCi/L	3
Bowie	9.00 pCi/L	3
Clarksburg	8.00 pCi/L	3

Bethesda, MD Radon Levels

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

Bethesda, MD Radon Facts

Bethesda, MD Radon Mitigation

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Bethesda, MD Radon Levels

Radon FAQ for Bethesda, MD

Most Active Radon Markets in Maryland

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