Data can show up in a variety of places and formats. General data about U.S. populations is typically gathered in the 10-year census and other surveys by the U.S. Census Bureau. First, consider what type of data you are looking for. Next, Consider who might be interested in gathering it (The federal government? State or local government? A government agency? A non-profit organization? A think tank?) and consider where it might be published (A website? A data repository? A book? An article?).
You may want to start with University Library's "Finding Data & Statistics" guide:
Search, browse, retrieve, view, map, print, and download Census data (formerly American FactFinder).
Includes Mexican Border Crossing Records
If you have questions or would like help, please contact a subject librarian.
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