IPUMS National Historic GIS
The National Historical Geographic Information System (NHGIS) provides easy access to summary tables and time series of population, housing, agriculture, and economic data, along with GIS-compatible boundary files, for years from 1790 through the present and for all levels of…
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- Urban & Regional Planning
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- 2026-10-10
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National Housing Preservation Database preservationdatabase.org
The National Housing Preservation Database contains property and subsidy-level data pulled from nine different HUD and USDA data sources. The database contains information on over 70,000 properties nationwide.
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National Register of Historic Places nps.gov
The National Register of Historic Places is the official list of the Nation's historic places worthy of preservation.
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Data.gov data.gov
United States federal repository of data, tools, and resources to conduct research, develop web and mobile applications, design data visualizations, and more.
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PTNA wiki.openstreetmap.org
Public Transit Nework Analysis is a open source system for finding and aggregating information about public transportation lines mapped in OSM.
Urban & Regional Planning › Public Data Resources > Demographic: “The National Historical Geographic Information System (NHGIS) provides easy access to summary tables and time series of population, housing, agriculture, and economic data, along with GIS-compatible boundary files, for years from 1790 through the present and for all levels of…”