Bethpage is within the Town of Oyster Bay with its own school district. The boundaries of the school district include parts of some surrounding hamlets (such as Old Bethpage and Plainedge). The Zip Code for most of the hamlet is 11714, though the most northeastern part of Bethpage is in the Old Bethpage postal district of 11804.The Town of Hempstead, on its website,Town of Hempstead Map. includes a small part of Bethpage that is in the Levittown census-designated place.
