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1990 population density by block group for the conterminous United States

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: August 03, 2026 at 04:20 PM | Dataset Last Updated: November 17, 2020 at 12:00 AM
This data set represents 1990 population density by block group as a 100-m grid using data from the 1990 Census of Population and Housing (Public Law 94-171 redistricting data). Grid cell values represent population density in people per square kilometer multiplied by 10 so that the data could be stored as integer.

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