Mangonia Park is a town in Palm Beach County, Florida, United States. It is a part of Uptown West Palm, which also includes Riviera Beach & West Palm Beach. The population was 1,283 at the 2000 census. As of 2004, the population recorded by the U.S. Census Bureau was 1,289. The Town of Mangonia Park was established in 1947. It has a Town Manager-Town Council type of local government, with council members elected to five "at-large" seats that serve three year staggered terms. Municipal elections are held in March of each year by the Palm Beach County Supervisor of Elections Office.