Port Jefferson Station is a hamlet and census-designated place (CDP) in the Town of Brookhaven in Suffolk County, New York, United States. The population was 7,838 as of the 2010 census.HistoryThe area now known as Port Jefferson Station was first called by the Native American name Comsewogue. The name "Echo" was also used. The first Colonial resident, William Tooker, had arrived by 1750.In 1873, the Long Island Rail Road arrived to provide service to nearby Port Jefferson, providing the hamlet's name.The primarily farming community began to experience suburban growth following the construction of Nesconset Highway in the mid 1950s. By the early 1970s, it had become a primarily suburban community.GeographyPort Jefferson Station is located at .According to the United States Census Bureau, the CDP has a total area of 2.6sqmi, all land. The train tracks mark the northern boundary of Port Jefferson Station, separating it from the village of Port Jefferson. Route 347  on the south forms a boundary with Terryville.Demographics of the CDPAs of the 2010 census, the population of Port Jefferson Station was 7,838. Out of those, 5,598 (76.5%) were White, 183 (2.3%) were Black, 416 (5.3%) were Asian, 7 (0.1%) were Native American, 3 (0.04%) were Native Hawaiian or Pacific Islander, 7 (0.1%) were some other race, and 66 (0.8%) were two or more races. 1,158 people (14.8%) were Hispanic or Latino (of any race).