West Yarmouth, MA Radon Levels

Q: What EPA Radon Zone is West Yarmouth in?

West Yarmouth is in Barnstable County, EPA Zone 2.

Q: How much does radon mitigation cost in West Yarmouth?

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

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

West Yarmouth, MA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Barnstable County, MA

Zip Code 02673

Situated in Barnstable County on Cape Cod, West Yarmouth sits in an area where glacial outwash deposits over coastal plain sediments generally produce lower radon levels than mainland Massachusetts. The community's housing includes many seasonal properties and year-round homes, with slab-on-grade and crawl space foundations common. Though testing data for zip code 02673 is limited, coastal properties should still consider radon testing for peace of mind.

6.80

pCi/L area average

Above EPA Action Level

Barnstable County average: 6.80 pCi/L, based on 10 user-submitted tests across 6 cities in the county. No homeowner readings have been submitted for West Yarmouth itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

West Yarmouth, MA Radon Mitigation

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

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Radon Readings Near West Yarmouth, MA

No homeowner tests have been submitted for West Yarmouth yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Osterville	7.9 mi	6.00 pCi/L	1
Sandwich	12.9 mi	10.00 pCi/L	1
Mashpee	13.2 mi	5.00 pCi/L	4
Buzzards Bay	17.5 mi	9.50 pCi/L	2
North Falmouth	20.0 mi	6.00 pCi/L	1
Falmouth	21.0 mi	7.00 pCi/L	1
Plymouth	27.1 mi	7.00 pCi/L	1
Kingston	34.7 mi	4.00 pCi/L	1

Barnstable County Radon Profile

EPA mapping assigns Barnstable County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 6 cities in Barnstable County average 6.80 pCi/L across 10 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Barnstable County home regardless of zone or a neighbor's results.

Radon FAQ for West Yarmouth, MA

What EPA Radon Zone is West Yarmouth in?

West Yarmouth and the 02673 zip code are in Barnstable County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near West Yarmouth?

No homeowner radon tests have been submitted for West Yarmouth yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Barnstable County average—are the best available indicator of local conditions until West Yarmouth homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in West Yarmouth?

Radon mitigation in West Yarmouth 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 West Yarmouth?

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.