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  2. 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.

  3. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    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)

  4. National Historical Geographic Information System - Wikipedia

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

    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 information, much of ...

  5. Georelational data model - Wikipedia

    en.wikipedia.org/wiki/Georelational_data_model

    Shapefile (Esri 1992–present) As the GIS industry grew to incorporate more casual users, the inherent complexity of the coverage data structure became a concern. When Esri released ArcView GIS 2.0 in 1992, it introduced the new shapefile format for vector data. This was a much simpler data model, eliminating features such as topology, but was ...

  6. 2020 Census data shows population drop in Baltimore ... - AOL

    www.aol.com/news/2020-census-data-shows...

    Maryland's population increased by almost 5% from 2010 to 2019 to a little more than 6 million residents, according to newly released data from last year's Census. Baltimore City officials have ...

  7. Census tract - Wikipedia

    en.wikipedia.org/wiki/Census_tract

    A census tract, census area, census district or meshblock [1] is a geographic region defined for the purpose of taking a census. [2] Sometimes these coincide with the limits of cities , towns or other administrative areas [ 2 ] and several tracts commonly exist within a county.

  8. Maryland statistical areas - Wikipedia

    en.wikipedia.org/wiki/Maryland_statistical_areas

    The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico. [2] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

  9. Thinking outside the lunch box: How Baltimore City is trying ...

    www.aol.com/thinking-outside-lunch-box-baltimore...

    Kamiara West positioned her plate to take advantage of the midday light streaming through the windows, angling her phone to capture an artful view of her chicken Caesar salad with a garlic knot on ...