Sonra: Administrative Boundaries USA
The polygon boundaries of geographic areas of the United States from the US Census
The Administrative Boundaries USA data set contains border information as polygons about the following divisions of the fifty states, the District of Columbia, Puerto Rico, and the Island areas (American Samoa, the Commonwealth of the Northern Mariana Islands, Guam, and the United States Virgin Islands) of the United States.
> Zip Code Tabulation Areas
> County Subdivisions
> Census Tracts
> Block Groups
Apart from the geographic boundary information as polygons, the data set also includes attributes such as total land area, total water area, FIPS codes and much more. Please refer to the data dictionary in the documentation for full details.
The data set is based on the TIGER/Line Shapefiles from the US Census Bureau. These are extracts of selected geographic and cartographic information from the Census Bureau’s Master Address File (MAF)/Topologically Integrated Geographic Encoding and Referencing (TIGER) Database (MTDB).
We have put together a comprehensive documentation which includes a description of all of the tables and columns in the data set and sample queries.
You can view the documentation here.
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