Federal Departments
This directory covers the fifteen executive departments of the federal government. Each page brings together the official department website, contact routes, office locator links, and a current workforce snapshot so you can see the scale of the department before you click through.
U.S. Department of Agriculture
The Department of Agriculture (USDA) provides leadership on food, agriculture, natural resources, and related issues.
March 2025 workforce: 90,840 employees · Avg. pay $88,591
U.S. Department of Commerce
The Department of Commerce (DOC) works with businesses, universities, communities, and the Nation’s workers to promote job creation, economic growth, sustainable development, and improved standards of living for Americans.
March 2025 workforce: 47,410 employees · Avg. pay $127,933
U.S. Department of Defense
The Department of Defense (DOD) provides the military forces needed to deter war, and to protect the security of the United States.
March 2025 workforce: 771,382 employees · Avg. pay $102,824
U.S. Department of Education
The Department of Education (ED) fosters educational excellence and ensures equal access to educational opportunity for all.
March 2025 workforce: 4,052 employees · Avg. pay $145,334
U.S. Department of Energy
The Department of Energy (DOE) manages the United States' nuclear infrastructure and administers the country's energy policy. The Department of Energy also funds scientific research in the field.
March 2025 workforce: 17,472 employees · Avg. pay $145,574
U.S. Department of Health and Human Services
The Department of Health and Human Services (HHS) protects the health of all Americans and provides essential human services.
March 2025 workforce: 92,269 employees · Avg. pay $134,256
U.S. Department of Homeland Security
The Department of Homeland Security (DHS) works to improve the security of the United States. The Department's work includes customs, border, and immigration enforcement, emergency response to natural and manmade disasters, antiterrorism work, and cybersecurity.
March 2025 workforce: 231,771 employees · Avg. pay $103,913
U.S. Department of Housing and Urban Development
The Department of Housing and Urban Development (HUD) administers programs that provide housing and community development assistance. The Department also works to ensure fair and equal housing opportunity for all.
March 2025 workforce: 8,671 employees · Avg. pay $139,117
U.S. Department of the Interior
The Department of the Interior (DOI) manages public lands and minerals, national parks, and wildlife refuges and upholds Federal trust responsibilities to Indian tribes and Native Alaskans. Additionally, Interior is responsible for endangered species conservation and other environmental conservation efforts.
March 2025 workforce: 63,752 employees · Avg. pay $95,844
U.S. Department of Justice
The Department of Justice (DOJ) enforces federal laws, seeks just punishment for the guilty, and ensures the fair and impartial administration of justice.
March 2025 workforce: 116,047 employees · Avg. pay $117,386
U.S. Department of Labor
The Department of Labor (DOL) administers federal labor laws to guarantee workers' rights to fair, safe, and healthy working conditions, including minimum hourly wage and overtime pay, protection against employment discrimination, and unemployment insurance.
March 2025 workforce: 14,107 employees · Avg. pay $125,279
U.S. Department of State
The Department of State (DOS) advises the President and leads the nation in foreign policy issues. The State Department negotiates treaties and agreements with foreign entities and represents the United States at the United Nations.
March 2025 workforce: 14,163 employees · Avg. pay $133,798
U.S. Department of Transportation
The Department of Transportation (DOT) is responsible for planning and coordinating federal transportation projects. It also sets safety regulations for all major modes of transportation.
March 2025 workforce: 57,204 employees · Avg. pay $141,857
U.S. Department of the Treasury
The Department of the Treasury manages federal finances by collecting taxes and paying bills and by managing currency, government accounts and public debt. The Department of the Treasury also enforces finance and tax laws.
March 2025 workforce: 116,073 employees · Avg. pay $95,743
U.S. Department of Veterans Affairs
The Department of Veterans Affairs (VA) runs programs benefiting veterans and members of their families. It offers education opportunities and rehabilitation services and provides compensation payments for disabilities or death related to military service, home loan guaranties, pensions, burials, and health care that includes the services of nursing homes, clinics, and medical centers.
March 2025 workforce: 474,532 employees · Avg. pay $110,817
Contact details and office links come from the USA.gov agency directory. Workforce counts and average pay come from the latest OPM FedScope Employment Summary Data (March 2025).