The Northwest Florida Water Management District (NWFWMD or District) stretches from the St. Marks River Basin in Jefferson County to the Perdido River in Escambia County. The District is one of five water management districts in Florida created by the Water Resources Act of 1972. The District has worked for decades to protect and manage water resources in a sustainable manner for the continued welfare of people and natural systems across its 16-county region. It serves Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf, Holmes, Jackson, Leon, Liberty, Okaloosa, Santa Rosa, Wakulla, Walton, Washington and western Jefferson County.
Within the District's 11,305-square-mile area, there are several major hydrologic (or drainage) basins: Perdido River and Bay System, Pensacola Bay System (Escambia, Blackwater and Yellow Rivers), Choctawhatchee River and Bay System, St. Andrew Bay System, Apalachicola River and Bay System and St. Marks River Basin (Wakulla River).