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Prince Frederick, MD Radon Levels

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


Prince Frederick, MD Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Calvert County, MD
Zip Code 20678

Prince Frederick serves as the county seat of Calvert County within the Lexington Park Metro area, situated on Maryland's Western Shore where Coastal Plain sediments overlay older formations. While comprehensive testing data for ZIP code 20678 remains limited, the area's EPA Zone 1 designation indicates high radon potential that requires homeowner attention. The region's mix of clay soils and typical Maryland basement construction can contribute to indoor radon accumulation.

Prince Frederick, MD Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon FAQ for Prince Frederick, MD

What EPA Radon Zone is Prince Frederick in?
Prince Frederick and the 20678 zip code are in Calvert 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 Prince Frederick?
Radon mitigation in Prince Frederick 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 Prince Frederick?
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.

CityAvg User Radon LevelSubmissions
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
Frostburg 8.67 pCi/L 3