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    Federal
TIGER/Line Shapefile, 2018, nation, U.S., Current County and Equivalent National Shapefile
U.S. Census Bureau, Department of Commerce —
The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master... - 
  
    Federal
USGS Global Fiducials
National Aeronautics and Space Administration —
The Global Fiducials Library (GFL) is a long-term archive of images from U.S. National Imagery Systems which represents a long-term periodic record for selected... - 
  
    Federal
Social Vulnerability Index (SoVI) for Alaska based on 2000 Census Block Groups
National Oceanic and Atmospheric Administration, Department of Commerce —
This data depicts the social vulnerability of Alaska census block groups to environmental hazards. Data were culled primarily from the 2000 Decennial Census.