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Federal
Collection TIGER/Line Shapefile, 2014, Series Information for the 2010 Census 5-Digit ZIP Code Tabulation Area (ZCTA5) National Shapefile
U.S. Census Bureau, Department of Commerce —
ZIP Code Tabulation Areas (ZCTAs) are approximate area representations of U.S. Postal Service (USPS) ZIP Code service areas that the Census Bureau creates to present... -
Federal
Collection TIGER/Line Shapefile, 2014,Series Information for the Current American Indian Tribal Subdivision (AITS) National Shapefile
U.S. Census Bureau, Department of Commerce —
American Indian tribal subdivisions are administrative subdivisions of federally recognized American Indian reservations/off-reservation trust lands or Oklahoma...