Northport station was originally built between May and July 1873 as "New Northport" station when the Smithtown and Port Jefferson Railroad was built from Northport Junction to Port Jefferson, New York. The original line which lead directly into a station within Northport Village, since April 25, 1868, became the Northport Branch. During that period, the original Northport station was renamed Old Northport station, while at some point in or before 1899, "New" Northport station was renamed "Northport East" station. Passenger service ended in 1899. Freight service continued until 1985, when the branch was abandoned.