Upper Marlboro, MD Radon Mitigation and Testing

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

Based on 3 user-submitted tests, the average radon level is 15.00 pCi/L.

Q: What EPA Radon Zone is Upper Marlboro in?

Upper Marlboro is in Prince George's County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Upper Marlboro?

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

Avg: 15.00 pCi/L

Prince George's County

EPA Zone Unknown

3 user tests

Upper Marlboro is located in Prince George's County, Maryland. With 3 user-submitted readings averaging 15.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 20772 zip code.

15.00

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Upper Marlboro, MD. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Upper Marlboro, MD Radon Mitigation

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

Upper Marlboro, MD Radon Testing

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

Upper Marlboro, Maryland Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
20 pCi/L	Upper Marlboro, MD	21-50 Years	Partial Basement	Sep 2025
5 pCi/L	Upper Marlboro, MD	51-99 Years	Full Basement	Dec 2020
20 pCi/L	Upper Marlboro, MD	0-20 Years	—	May 2016

Have a radon test result for Upper Marlboro? Submit your reading to help other homeowners.

Upper Marlboro Radon Facts

Key details about the radon risk profile for Upper Marlboro and the 20772 zip code area.

EPA Radon Zone

Unknown

County

Prince George's County, MD

Zip Code

20772

Predicted Screening Level

Unknown

Avg. User Submitted Level

15.00 pCi/L

User Tests Submitted

Upper Marlboro and the 20772 zip code are located in Prince George's County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Upper Marlboro, MD

What is the average radon level in Upper Marlboro, MD?

Based on 3 user-submitted tests, the average radon level in Upper Marlboro is 15.00 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 Upper Marlboro in?

Upper Marlboro and the 20772 zip code are in Prince George's County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

How much does radon mitigation cost in Upper Marlboro?

Radon mitigation in Upper Marlboro 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 Upper Marlboro?

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