The Brentwood Fire Department is located in Suffolk County, Long Island, New York. The Department is in Suffolk County Fire-Rescue's 3rd Fire Division.

 The Department has an area of approximately 24 square miles covering Brentwood, North Bay Shore, Edgewood and Baywood. It has a wide variety of structures including; single and multiple family dwellings, Suffolk Community College, C.W. Post, Pilgrim State Psychiatric Facility which has 25 to 30 non fire proof buildings with many converted into private businesses, 20 Brentwood Public School buildings, many taxpayers and commercial structures, several garden apartment complexes and the St. Josephs Complex.

 Brentwood Fire Department also covers three major roadways. The Long Island Expressway, the Islands major thoroughfare for commercial and commuter traffic, the Southern State Parkway and the Sagtikos Parkway.

 The Brentwood Fire Department responds to fire calls only and does not handle EMS. The Department responds to an average of 1,600 runs each year. Brentwood Ambulance, which is responsible for emergency medical care, handles an average of 7,000 EMS runs each year.

 The Department is under the command of Chief John J. Carney, the 39th Chief of the Department. Brentwood FD operates out of 5 houses with 11 engines, 1 - 95' tower ladder, 1 - 100' aerial, a heavy rescue unit, 1 brush unit and a mobile command unit. In 1998, the Department celebrated its 100th year of service to the people of Brentwood.