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TIGER was developed to support and improve the Bureau's process of taking the Decennial Census. 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.
US Census Bureau US basemaps and US demographic data: U.S. Gazetteer, TIGER/Line shapefiles, census data. National Historical Geographic Information System: 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)
Dual Independent Map Encoding (DIME) is an encoding scheme developed by the US Bureau of the Census for efficiently storing geographical data. The committee behind the case study that eventually resulted in DIME was established in 1965, although the term DIME itself was first coined by George Farnsworth in August 1967.
The Census Bureau's legal authority is codified in Title 13 of the United States Code. The Census Bureau also conducts surveys on behalf of various federal government and local government agencies on topics such as employment, crime, health, consumer expenditures, and housing. Within the bureau, these are known as "demographic surveys" and are ...
DOT agencies provided funding for technical support related to use of the data as well as coordination and software. From 1970 to 2000 the CTPP used data from the decennial census long form. The long-form decennial census was discontinued after the 2000 decennial census and in 2006 much of the content of the long form was replaced with the ACS. [5]
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.
In April 2000, the Census Bureau renewed its commitment to close the minority and economic gap in data access by expanding the CIC Program to include 54 additional organizations representing under-served communities, bringing the number of Program participants to 59 organizations.
A GIS software program is a computer program to support the use of a geographic information system, providing the ability to create, store, manage, query, analyze, and visualize geographic data, that is, data representing phenomena for which location is important.