Federal Government Information: Agencies & Directories

Provides the website, email address, phone number, and mailing address for each government agency.

A searchable list of federal agencies maintained by the Federal Register.

Contact information for federal, state, and local government officials.

Includes an extensive list of apps by government agency.

This guide matches U.S. federal agencies with their SuDoc (Superintendent of Documents) number. With this number, you can browse print government publications on the 4th floor of Helmke Library. You can also find SuDoc numbers in the library catalog and Catalog of U.S. Government Publications.

Identifies federally appointed positions within the U.S. Government; published every four years. See also: https://m.gpo.gov/plumbook/.

The official handbook of the U.S. government, with contact information for federal officials, quasi-official agencies, commissions and committees. See also GPO.