Miami is a major city in southeastern Florida, in the United States. Miami and the surrounding metropolitan area are situated on northern Biscayne Bay between the Everglades and the Atlantic Ocean. By population, Miami is the largest city in Miami-Dade County and the county seat, the largest city in the South Florida metropolitan area, which comprises Miami-Dade County, Broward County, and Palm Beach County, making up the largest metropolitan area in the Southeastern United States, and the seventh largest metropolitan area in the United States.