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Geolytics Neighborhood Change Database (NCDB) provides access to selected variables from the 1970 to the 2000 Census at the nation, state, county, or census tract level. Where available, normalized time-series data can be accessed in Census 2000 tract boundaries. Download data as a CSV, DBF, MapInfo file, or shapefile.
Note: The NCDB works with *Internet Explorer *only.
For help with this and other sources of current and historical Census data, contact Katharin Peter, Social Sciences Data Librarian (http://libguides.usc.edu/data).
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