NYU Spatial Data Repository

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1. County Boundaries of the United States, 1980

1980. Geological Survey (U.S.). This polygon shapefile contains the 1980 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).

2. SEDAC 1980 Census Blocks

1980. This dataset contains the census blocks from the United States Decennial Census of 1980. The data were derived from the TigerLine 1992 release. In ...