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Curated
National Spatiotemporal Population Research Infrastructure (ICPSR 35986)
Released/updated on: 2015-06-18
Geographic coverage: United States
This project expands and improves the National Historical Geographic Information System (NHGIS), which is the nation's most comprehensive source for statistical data, geographic data, and metadata describing spatial characteristics of the American population. It expands the NHGIS database by adding all new American Community Survey summary files, new historical census data, new health data sets, and additional integrated time series tables.