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  2. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    List of GIS data sources. This is a list of GIS data sources (including some geoportals) that provide information sets that can be used in geographic information systems (GIS) and spatial databases for purposes of geospatial analysis and cartographic mapping. This list categorizes the sources of interest.

  3. Topologically Integrated Geographic Encoding and Referencing

    en.wikipedia.org/wiki/Topologically_Integrated...

    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.

  4. National Historical Geographic Information System - Wikipedia

    en.wikipedia.org/wiki/National_Historical...

    Logo for the NHGIS. The National Historical Geographic Information System (NHGIS) is a historical GIS project to create and freely disseminate a database incorporating all available aggregate census information for the United States between 1790 and 2010. The project has created one of the largest collections in the world of statistical census ...

  5. Pennsylvania Spatial Data Access - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Spatial_Data...

    Pennsylvania Spatial Data Access (PASDA), [4] the official public geospatial data clearinghouse for the Commonwealth of Pennsylvania marked its 18th year in 2014. PASDA, which has grown from a small website offering 35 data sets in 1996 to the expansive user-centered data clearinghouse that it is today, has become a staple of the GIS community in Pennsylvania.

  6. United States Census Bureau - Wikipedia

    en.wikipedia.org/wiki/United_States_Census_Bureau

    The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The U.S. Census Bureau is part of the U.S. Department of Commerce and its director is appointed by the President of the United States.

  7. Geographic information system - Wikipedia

    en.wikipedia.org/wiki/Geographic_Information_System

    A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. [1][2] Much of this often happens within a spatial database; however, this is not essential to meet the definition of a GIS. [1] In a broader sense, one may consider such a system ...

  8. Web GIS - Wikipedia

    en.wikipedia.org/wiki/Web_GIS

    The United States Census Department extensively uses Web GIS to distribute its boundary data, such as TIGER files, and demographics to the public. [ 1 ] [ 16 ] The "2020 Census Demographic Data Map Viewer" runs on an ESRI Web Map Application, and provides demographic information, such as population, race, and housing information at the state ...

  9. Great Britain Historical GIS - Wikipedia

    en.wikipedia.org/wiki/Great_Britain_Historical_GIS

    The Great Britain Historical GIS (or GBHGIS) is a spatially enabled database that documents and visualises the changing human geography of the British Isles, [1] although is primarily focussed on the subdivisions of the United Kingdom mainly over the 200 years since the first census in 1801. The project is currently based at the University of ...