The Florida Geographic Data Library (FGDL) is the state's comprehensive geospatial clearinghouse, maintained by the University of Florida's GeoPlan Center in partnership with state agencies. It aggregates hundreds of authoritative GIS layers covering Florida.
Coverage spans administrative boundaries, environment and conservation, transportation, hydrography, imagery, and land use, available as downloads and web services. FGDL is the long-standing authoritative source for Florida GIS data.