Surfside is a town in Miami-Dade County, Florida, United States. Surfside is a primarily residential beachside community, with several multistory condominium buildings adjacent to Surfside Beach on the Atlantic Ocean. The town is bordered on the south by the North Beach neighborhood of Miami Beach, on the north by Bal Harbour, on the west by Biscayne Bay, and on the east by the Atlantic Ocean. It also serves as part of the Miami metropolitan area of South Florida. The population was 5,689 as of the 2020 census.