Brentwood, New York

Brentwood is a hamlet in the Town of Islip in Suffolk County, on Long Island, in New York, United States. The population was 62,387 at the 2020 Census, making it the most populous CDP in Suffolk County and on all of Long Island outside of New York City.
  • Elevation: 79 ft (24 m)
  • Country: United States
  • State: New York
  • County: Suffolk
  • Town: Islip
  • Named for: Brentwood, Essex
  • ZIP code: 11717
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