United States Department of State: The Diplomatic Arm of the Government

Department of State
Rex Tillerson, Secretary of State

The United States Department of State was created in 1789 and was the first executive department established by the U.S. government. The department is often referred to as the “State Department” and is the federal executive department that is responsible for:

  • International relations of the United States
  • Serving as the equivalent to the foreign ministries of other countries
  • U.S. diplomatic missions abroad
  • Implementing U.S. foreign policy
  • U.S. diplomacy efforts

The department is led by the Secretary of State, who is nominated by the President and confirmed by the Senate and is a member of the Cabinet. The current Secretary of State is John Kerry, who replaced Hillary Rodham Clinton.

The department’s headquarters building is physically located at 2201 C. Street, NW in Washington D.C. inside the Harry S. Truman Building.

Contact Information

  • Primary Website: U.S. Department of State – This website serves as the State Department’s portal of information on foreign policy and information about the State Department. It is managed by the Office of Electronic Information, Bureau of Public Affairs
  • The Phone Number: 703-875-5084
  • Email Address: [email protected]

Private detectives who conduct international investigations, or whose domestic investigation leads them abroad, should be familiar with the department, especially how to leverage its website and data in the course of their investigation case. Also, it is a good idea to check the department’s website prior to traveling abroad to check for any international travel warnings.

Related Information

Find more Government Resources.


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