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GIS Data: Data Sources for U. S.

Find datasets for GIS mapping applications recommended by the library's subject specialist. It features current and historical data in the library’s collections and in public repositories.

General sources

These sites are either search engines for finding data or sites that have a large accumulation of data layers.

Data from the Census Bureau

National Park Service

Historical boundaries

Crime data

Health

Soil surveys

Our neighbors, North & South

National Data Sources