Welcome to Naval District Washington, “The Quarterdeck of the Navy.“ With the nation's capital at its heart, the naval region encompasses more than 4,000 square miles, including the District of Columbia; the Maryland counties of Anne Arundel, Talbot, Dorchester, Wicomico, Somerset, Worchester, Kent, Calvert, Charles, Montgomery, St. Mary's, Queen Anne's and Caroline; and northern Virginia counties of Loudoun, Fauquier, Fairfax, Prince William, Stafford, King George, Arlington and the cities within their outer boundaries.

Naval District Washington is the regional provider of common operating support to naval installations within a 100-mile radius of the Pentagon. Services provided include public affairs, public works, public safety, community support, human resources, information technology, supply, air and port operations, ceremonial support, environmental and safety and morale, welfare and recreation.

Naval District Washington is responsible for efficiently delivering common operating support services to more than 120 mission commands located within its geographical borders. The region's installations comprise more than 26,000 acres and almost 4,400 buildings, with an $8.6 billion plant replacement value and more than 70,000 civilian and military personnel.

Naval District Washington includes the following commands:

• Naval Support Activity Annapolis
  - Naval Support Facility Annapolis
  - Naval Support Facility Chesapeake Beach
  
  
• Naval Support Activity North Potomac
  - Naval Support Facility Naval Observatory
  - Naval Support Facility Carderock
  - Naval Support Facility Potomac Annex
  - Naval Support Facility Arlington
  - Naval Support Facility Thurmont
  
  
• Naval Air Station Patuxent River
  - Naval Support Facility Solomons Island
  - Outlying Field Webster Field
  
  
• Naval Support Activity South Potomac
  - Naval Support Facility Dahlgren
  - Naval Support Facility Indian Head
  - Naval Support Facility Andrews
  
  
• Naval Support Activity Washington
  - Washington Navy Yard
  - Naval Support Facility Anacostia
  - Naval Research Laboratory
  - National Maritime Intelligence Center

Commandant, Naval District Washington represents the Secretary of the Navy and the Chief of Naval Operations (CNO) in a variety of matters, including public and diplomatic functions and the presentation of awards and decorations. The commandant also coordinates Navy participation in official ceremonies and serves as deputy commander for the Joint Forces Headquarters-National Capital Region (JFHQ-NCR).

The commandant exercises area coordination over military and civilian employees assigned to Navy activities within the geographic area encompassed by Naval District Washington.