List of counties in Florida - Wikipedia
en.wikipedia.org/wiki/List_of_counties_in_Florida
Holmes Creek, which forms the eastern boundary of the county: 40.77 19,651: 482 sq mi (1,248 km 2) Indian River County: 061: Vero Beach: 1925: St. Lucie: The Indian River Lagoon, which flows through the county: 332.71 167,352: 503 sq mi (1,303 km 2) Jackson County: 063: Marianna: 1822: Escambia: Andrew Jackson (1767–1845), the seventh ...