Fort Salonga is a hamlet and census-designated place (CDP) in Suffolk County, New York on the North Shore of Long Island. At the 2010 census, the CDP population was 10,008. The name evolved from the Revolutionary War-era British Fort Salonga, or Fort Slongo, (named after one of the fort’s architects) once located near the border of the towns of Huntington and Smithtown, overlooking Long Island Sound.
Fort Salonga is a community at the northeast corner of the town of Huntington and at the northwest boundary of the town of Smithtown. It is considered the easternmost "town" of the historic Gold Coast of Long Island, with the Geissler Estate located within the hamlet.
One night during the Revolutionary War, Colonial forces landed on the beach in nearby Crab Meadow, and moving down the beach overtook the fort.
In the post-Civil War era the rich red clay deposits gave birth to a successful brickworks as well as other trade. Barges loaded with manure swept from the streets of New York City would arrive, and farmers from nearby towns would come to get the manure for fertilizer. The emptied barges were then loaded with bricks for the trip back to the city. One of the brick companies to operate there in the late 19th century was owned by the Brown family, whose bricks bore the initials BBB for Brown's Best Bricks.