Delmar, MD Radon Mitigation and Testing

Q: What EPA Radon Zone is Delmar in?

Delmar is in Wicomico County, EPA Zone 3.

Q: How much does radon mitigation cost in Delmar?

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

Wicomico County

EPA Zone 3

Located in Wicomico County on Maryland's Eastern Shore, Delmar sits in coastal plain geology where sandy soils and shallow bedrock typically yield lower radon levels than inland areas. The community's EPA Zone 3 classification reflects this reduced risk, though local geological variations can still produce unexpected readings. With testing data limited for zip code 21875, homeowners should consider baseline radon testing, especially in properties with crawl spaces or basements that could concentrate naturally occurring radon gas.

Delmar, MD Radon Mitigation

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

Delmar, MD Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Delmar Radon Facts

Key details about the radon risk profile for Delmar and the 21875 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Wicomico County, MD

Zip Code

21875

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Delmar and the 21875 zip code are located in Wicomico County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Delmar, MD

What EPA Radon Zone is Delmar in?

Delmar and the 21875 zip code are in Wicomico 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 Delmar?

Radon mitigation in Delmar 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 Delmar?

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 with the most user-submitted radon test data in the state.

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
Gambrills	6.00 pCi/L	3
Elkton	5.33 pCi/L	3
Silver Spring	4.33 pCi/L	3
Chesapeake Beach	14.00 pCi/L	2
Cumberland	9.00 pCi/L	2
Frostburg	9.00 pCi/L	2
Owings	5.50 pCi/L	2
Huntingtown	4.50 pCi/L	2
Mc Henry	20.00 pCi/L	1
Mount Airy	20.00 pCi/L	1