Note on 2009 census tracts and block groups: This Census Bureau page identifies the vintages of geographic areas for each ACS survey year since 2009.
These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Access & Use InformationĪccess Constraints: None, Use Constraints:The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. The boundaries of all CCDs, delineated in 20 states, are those as reported as part of the Census Bureau's Participant Statistical Areas Program (PSAP) for the 2010 Census. The boundaries of most legal MCDs are as of January 1, 2015, as reported through the Census Bureau's Boundary and Annexation Survey (BAS). The entire area of the United States, Puerto Rico, and the Island Areas are covered by county subdivisions.
In MCD States where no MCD exists or is not defined, the Census Bureau creates statistical unorganized territories to complete coverage. For the 2010 Census, the MCDs are the primary governmental and/or administrative divisions of counties in 29 States and Puerto Rico Tennessee changed from having CCDs for Census 2000 to having MCDs for the 2010 Census. They include legally-recognized minor civil divisions (MCDs) and statistical census county divisions (CCDs), and unorganized territories.
The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation.Ĭounty subdivisions are the primary divisions of counties and their equivalent entities for the reporting of Census Bureau data. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S.