Washington, DC

ZIP code 20522 is located in Washington, D.C. and is primarily associated with the U.S. Department of State. The major landmarks in this area include the Harry S. Truman Building, which serves as the headquarters for the Department of State, as well as the United States Diplomacy Center and the George P. Shultz National Foreign Affairs Training Center. This ZIP code is integral to the functioning of the U.S. government's foreign affairs operations.