ProQuest Statistical Abstract of the United States database is a comprehensive summary of statistics on the social, political, and economic organization of the United States. Use the Abstract as a convenient online source for statistical reference, and as a guide to sources of more information both in print and on the Web. You can access it through the library's A-Z Databases list, or through any of the Databases by Discipline pages.
There's a great LibGuide with all kinds of links to information about what's covered in the database: http://proquest.libguides.com/content.php?pid=344620&sid=2819294