Massapequa Park is an incorporated village located within the southern portion of the Town of Oyster Bay in Nassau County, on the South Shore of Long Island, in New York. The population was 17,008 at the 2010 census. The areas south and east of the village borders are considered the hamlet of Massapequa because they are under the jurisdiction of the Town of Oyster Bay rather than the village. The hamlet shares the same zip code, fire department and school district as the village.