US Geological Survey – USGS
Download data from St. Johns River Water Management District. (Imagery, Soils, Topography, FEMA, Wetlands, Vegetation, etc.)
Download data from Land Boundary Information System (LABINS). (Imagery, DRGs, DLGs, DEMs, Horizontal and Vertical Control, etc.)
Florida Department of Emergency Management (FDEM) GIS page
Download data from Florida Department of Transportation. (Roads, Road Data, Traffic Data, DOT Fueling Sites, Toll Roads, US Highways, Speed Limits, Bridges, Interchanges, District Boundaries, etc.)
Download data from Florida Department of Health. (Group Care Facilities, Mobile Home/RV Parks, Migrant Labor Camps, Tanning Facilities, Beach Water Monitoring Sites, SUPER Act Risk Sources, Public Swimming Pools, etc.)
Download data from Florida Department of Environmental Protection. (Critical Beach Erosion Areas in Florida, Range Monuments, SBMP Regions and Units, Coastal Construction Control Line)
USDA NRCS Data Gateway. The Natural Resources Conservation Services provides environmental and natural resources information..
FEMA Maps Service Center (FEMA Map Services and Data)
Download data from Federal Communications Commission (Cell Towers, Cellular Market Areas, Basic Trading Areas, etc.)
The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2000.