In October of 1926 the Central Park Free Library was organized as an Association Library with 41 Members. It was quartered in a small store near the railroad station. The board of directors included: Mr. S.I. Hicks, Mrs. A. Sorenson, Mr. H.G. Holzmacher, Mr. O.B. Briggs and Mr. E.A. Rosenthal. February 17, 1927 the Library was granted a Provisional Charter by the Regents of the University of the State of New York. The book collection numbered 550 volumes.
In 1931 the library became a school district library supported by tax levy. The Library's name was changed to the Central Park Public Library. In 1936 Central Park became Bethpage and in 1942 the Regents amended the Library's charter to read Bethpage Public Library. In autumn, the library moved to larger rented quarters at corner of Broadway and Railroad Ave. In 1961 Gibbons and Heidtmann were selected as architects for a new building to be constructed on site of the Powell Avenue School. July 29, 1963 the new library building opened.
Bethpage Public Library is a member of the Long Island Library Resources Council.