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Ancestry Groups in the United States
Maps which show how many people in each county of the United States identify with certain ancestry groups.
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From the Library of Congress.
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John R. Borchert Map Library - Atlas of Minnesota - Ancestry Maps
From the University of Minnesota. Displays 1990 census data for self-reported ancestry background by county.
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Various ancestry distribution maps showing ancestry concentrations by county as reported on the 2000 census.










