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Research Guides

United States Federal Government Resources: Departments and Agencies


Executive departments are government units under the direct President supervision. The President's Cabinet includes the Vice President, heads of the 15 executive departments below, and  the Attorney General.  There are hundreds of federal agencies and commissions with various responsibilities. Visit for a current list of federal agencies, commissions and departments.

Each executive department collects and publishes unique information. Consult the departmental pages listed below, and the links to highlighted publications, resources, agencies and administrations to learn more! Other agencies and administrations are highlighted in boxes in the right column. Also recommended: UCSD's guide on Accountability resources (Inspector Generals' reports).

Department of Agriculture

Department of Agriculture highlighted publications and resources:

Department of Commerce

Department of Commerce highlighted commerce bureaus:

        Department of Defense

        Department of Defense highlighted documents and sites:

        • Department of Defense News Releases: News releases are official statements of the DOD, which include casualty notices. Archived releases are online from Oct. 1994 on.
        • Homeland Security Digital Library: A research collection of open-source resources related to homeland security policy, strategy and organizational management.
        • Joint Chiefs of Staff: The Chairman of the Joint Chiefs of Staff is the principal military adviser to the President, though all JCS members are considered law military advisers
        • Military Departments: The official sites for the Navy, Army, Marine Corps, Air Force and more can be found on this page.
        • Greta's Links: Useful blog from respected librarian Greta Marlatt, U.S. Naval Postgraduate School

          Department of Education

          Department of Education highlighted resources:

            Department of Energy

            Department of Energy highlighted agencies and offices:

            Department of Health & Human Services

            Department of Health and Human Services highlighted agencies:

              Department of Homeland Security

              Department of Homeland Security highlighted resources and administrations.

              Department of Housing & Urban Development

              Department of Housing and Urban Development highlighted resources for HUD data: 

              • HUD USER: This resources contains housing research and data sets as well as publications of HUD research.
              • Homelessness: Follow this link for resources and information about homelessness; also see HHS information above.

              Department of the Interior

              Department of the Interior highlighted bureaus and agencies:

              Department of Justice

              Department of Justice highlighted offices, divisions, and bureaus:

                Department of Labor

                Department of Labor highlighted bureaus and administrations:

                Department of State

                Department of State highlighted publications and documents:

                    Department of Transportation

                    Department of Transportation highlighted activities and areas of focus: 

                            Department of the Treasury

                            Department of the Treasury highlighted resources and agencies:

                            • Tax Policy: here you'll find Treasury-produced documents related to taxes and tax policy.
                            • Data and Charts Center: this page contains raw data, graphs, and charts on Treasury topics.
                            • Internal Revenue Service: the IRS is the nation's tax collection agency and administers the Internal Revenue Code.

                            Department of Veteran Affairs

                            Department of Veteran Affairs highlighted resources:


                              Highlighted & Familiar Agencies