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The TIGER files do not contain the census demographic data, but merely the geospatial/map data. GIS can be used to merge census demographics or other data sources with the TIGER files to create maps and conduct analysis. TIGER data is available without cost because U.S. Government publications are required to be released into the public domain.
A Census Block Group is a geographical unit used by the United States Census Bureau which is between the Census Tract and the Census Block. It is the smallest geographical unit for which the bureau publishes sample data, i.e. data which is only collected from a fraction of all households. Typically, Block Groups have a population of 600 to ...
NHGIS provides free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2012. Atlas of Historical County Boundaries Project (AHCBP) The AHCBP documents all boundary changes in states and counties in United States territory, including non-county areas never before compiled or mapped ...
A census block is the smallest geographic unit used by the United States Census Bureau for tabulation of 100-percent data (data collected from all houses, rather than a sample of houses). The number of blocks in the United States, including Puerto Rico and other island areas, for the 2020 Census was 8,180,866. [1]
Census data is used to determine how seats of Congress are distributed to states. [24] Census data is not used to determine or define race genetically, biologically or anthropologically. [25] The census data is also used by the Bureau to obtain a real-time estimate in U.S. and World Population Clock. [26]
The data reveals that the American South remains the nation’s fast-growing region, adding nearly 1.8 million more residents this calendar year to record a population of 132.7 million, with the ...
ZIP Code Tabulation Areas (ZCTAs) are statistical entities developed by the United States Census Bureau for tabulating summary statistics. These were introduced with the Census 2000 and continued with the 2010 Census and 5 year American Community Survey [1] datasets. They were updated again for the 2020 census.
On July 15, 2015, the OMB released new standards based on the 2010 census. [2] [3] [4] These standards are used to replace the definitions of metropolitan areas from the 2010 United States census data.