Centerport is a hamlet and census-designated place in Suffolk County, New York, United States, on the notably affluent North Shore of Long Island, historically known as the Gold Coast. Formerly known as Little Cow Harbor in about 1700, as Centerport in 1836, and as Centerport after 1895, the name refers to its geographic position midway between the east and west boundaries of the town of Huntington. As of the 2010 United States Census, the CDP population was 5,508.