- SC.GOV - Official Web Site of the State of South Carolina
- South Carolina Association of Counties - link is to a list of County web sites. Note: Many counties have GIS data available through interactive web applications.
- Digital Cartography & Precinct Demographics - Office of Research & Statistics.
- Geodetic Survey - Office of Research & Statistics.
- USC GIS Data Server
- SC DHEC GIS Data and web applications
- My South Carolina Map (mySCmap)
- GeoSpatial One-Stop
- The National Map, USGS
- The National Atlas
- FEMA
- GIS & Maps, University of Arkansas
- National Park Service
- National Wetlands Inventory
- U.S. Census Bureau
- U.S. Geological Survey (USGS)
- US GeoData, Available Online Data from USGS
- USDA Natural Resources Conservation Service
- US Environment Protection Agency (EPA)