Census Tract Reference Maps from the 23rd Census of Population and Housing, 2010; README file
README FILE Census Tract Reference Maps from the 23rd Census of Population and Housing, 2010 Record Group 29: Records of the Bureau of the Census TR-0029-2018-0012 This series consists of county-based maps that show and label the census tracts as delineated to support 2010 Census data dissemination. There are 4,924* map files for census tract groups within 3,312 counties. Each county is covered by one or more parent map sheets at a single scale. The agency created inset map sheets at larger scales where there are clusters of census tracts that cannot be identified at the parent map scale. There is an index map showing the sheet configuration for all counties requiring more than one parent map sheet. Each set of census tract reference maps is accompanied by a “Census Tract to Map Sheet” (CT2MS) relationship file that includes a record for each census tract within the county, consisting of the code and name of the tract, and a list of all map sheet numbers on which the tract appears. …
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README FILE Census Tract Reference Maps from the 23rd Census of Population and Housing, 2010 Record Group 29: Records of the Bureau of the Census TR-0029-2018-0012 This series consists of county-based maps that show and label the census tracts as delineated to support 2010 Census data dissemination. There are 4,924* map files for census tract groups within 3,312 counties. Each county is covered by one or more parent map sheets at a single scale. The agency created inset map sheets at larger scales where there are clusters of census tracts that cannot be identified at the parent map scale. There is an index map showing the sheet configuration for all counties requiring more than one parent map sheet. Each set of census tract reference maps is accompanied by a “Census Tract to Map Sheet” (CT2MS) relationship file that includes a record for each census tract within the county, consisting of the code and name of the tract, and a list of all map sheet numbers on which the tract appears. Example: DC10CT_C06083_000.pdf = Index Sheet DC10CT_C06083_001.pdf = Parent Sheet 1 … DC10CT_C06083_0011.pdf = Parent Sheet 11 DC10CT_C06083_CT2MS.txt = Census Tract-to-Map Sheet In January 2020, to facilitate access to these records, the files that support a particular census tract group were “zipped” into 3,312 separate ZIP files. Found within each ZIP file are: This NARA-created README file (Readme_DC10CT.pdf) The “Census Tract-to-Map Sheet” (CT2MS) relationship file in ASCII text (.txt) The map files in Portable Document Format (.pdf) for the respective census tract. *NARA received duplicate versions of files for some counties. The duplicate versions are not available online. Electronic Records Reference Branch (RDER) Prepared: February 4, 2020