The county has 31 municipalities, which consist of 24 incorporated cities and many unincorporated areas. It is also Florida's seventh-largest county in terms of land area, with 1,322. 8 square miles (3,426 km2). Broward County's urbanized area occupies 427. 8 square miles of land. The largest portion of the county is the Conservation Area that extends west to border Collier County. The conservation area is 796. 9 square miles and consists of wetlands, much of which are part of the Everglades National Park. At its widest points, the County stretches approximately 50. 3 miles east to west and approximately 27. 4 miles from north to south, averaging 5 to 25 feet in elevation.