Aerial of the Seven Sister Islands on the St. Johns River

Fast facts

The 18-county district had a population of 5.65 million people as of 2020.
The main water body in the district is the northerly flowing St. Johns River, the longest river entirely in Florida.
Other significant water bodies are the St. Marys, Nassau, Matanzas, Halifax and Ocklawaha rivers and the Indian River Lagoon.
There are 148 known springs and 1,400 lakes in the district.
Counties entirely or partially within the district are Alachua, Baker, Bradford, Brevard, Clay, Duval, Flagler, Indian River, Lake, Marion, Nassau, Okeechobee, Orange, Osceola, Putnam, St. Johns, Seminole and Volusia.
The District operates and maintains nearly 90 major and minor water control structures, including three navigational locks and about 300 miles of levees and canals.
The District owns or manages 777,912 acres of land (through transfers, donations, fee-simple purchases and less-than-fee acquisitions). The majority of the property is open for the public to enjoy.