Madison, MD Radon Levels
Check local Madison radon levels and find certified testing and mitigation professionals to keep your home safe
Madison, MD Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Dorchester County, MD
Zip Code
21648
Located in Dorchester County on Maryland's Eastern Shore, Madison sits on coastal plain sediments where radon levels are typically lower but can still vary by individual property location. Testing data for zip code 21648 remains limited, making professional radon testing valuable for homeowners seeking comprehensive indoor air quality assessment. The area's mix of waterfront properties and inland homes both benefit from radon monitoring, particularly those with enclosed foundation spaces.
Madison, 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 Madison, MD
What EPA Radon Zone is Madison in?
Madison and the 21648 zip code are in Dorchester County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Madison?
Radon mitigation in Madison 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 Madison?
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 |
| Frostburg | 8.67 pCi/L | 3 |