Oyster Bay, NY Radon Mitigation and Testing

Q: What EPA Radon Zone is Oyster Bay in?

Oyster Bay is in Nassau County, EPA Zone 3.

Q: How much does radon mitigation cost in Oyster Bay?

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

Nassau County

EPA Zone 3

Historic Oyster Bay in Nassau County on Long Island sits on glacial deposits over coastal plain sediments. While testing data for the 11771 zip code area within the New York City Metro remains limited, the EPA Zone 3 classification suggests lower radon potential typical of coastal areas. However, individual homes, particularly older estates with full basements or unique geological settings, may still benefit from radon testing for comprehensive indoor air quality assessment.

Oyster Bay, NY Radon Mitigation

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

Oyster Bay, NY Radon Testing

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

Oyster Bay Radon Facts

Key details about the radon risk profile for Oyster Bay and the 11771 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Nassau County, NY

Zip Code

11771

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Oyster Bay and the 11771 zip code are located in Nassau 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 Oyster Bay, NY

What EPA Radon Zone is Oyster Bay in?

Oyster Bay and the 11771 zip code are in Nassau 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 Oyster Bay?

Radon mitigation in Oyster Bay 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 Oyster Bay?

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 New York

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

City	Avg User Radon Level	Submissions
Brooklyn	10.80 pCi/L	5
Oneonta	6.50 pCi/L	4
Clifton Park	3.75 pCi/L	4
Elmira	15.00 pCi/L	3
Saugerties	10.67 pCi/L	3
Staten Island	4.00 pCi/L	3
New York	9.00 pCi/L	2
Yonkers	8.00 pCi/L	2
Horseheads	7.50 pCi/L	2
Poughkeepsie	16.00 pCi/L	1
Buffalo	4.00 pCi/L	1
Pelham	3.00 pCi/L	1