District of Columbia, United States

State guide with cities, regions, and key information.

United StatesAmericas
Introduction
The District of Columbia is the federal capital district of the United States — a 177-square-kilometre area carved out of Maryland (and originally Virginia) by the Residence Act of 1790, designed by Pierre L'Enfant in 1791, and chartered as the seat of the federal government from 1800. Coextensive with the city of Washington, the District is unique in the American constitutional structure: not a state, not part of any state, with limited self-government since 1973 (an elected Mayor and 13-member Council), a non-voting Delegate in the United States House of Representatives, and no Senators. The DC statehood movement has been a recurring proposal since 1980. The wider Washington metropolitan area — the 'DMV' (DC, Maryland, Virginia) — extends across the District line into Montgomery and Prince George's counties in Maryland, Arlington and Fairfax counties and the cities of Alexandria and Falls Church in Virginia, and out to Loudoun, Prince William, Frederick and Anne Arundel counties. The metropolitan area's 6.4 million residents and 720 billion-dollar economy make it the seventh-largest in the United States. The state-level read of the District is therefore both the federal-and-monumental city of L'Enfant's plan, and the wider DMV — Embassy Row, the Pentagon and Arlington National Cemetery just across the Potomac, the colonial Old Town Alexandria, Mount Vernon as Washington's plantation home, the Smithsonian Udvar-Hazy Center near Dulles, and the Chesapeake Bay and Shenandoah day-trip orbit beyond.

Discover District of Columbia

The District of Columbia is unique in the American federal system — a federal district, not a state, governed under the United States Constitution's 'District Clause' (Article I, Section 8, Clause 17) which gives Congress 'exclusive Legislation in all Cases whatsoever, over such District (not exceeding ten Miles square) as may, by Cession of particular States, and the Acceptance of Congress, become the Seat of the Government of the United States'. The District was created by the Residence Act of 1790, which selected the Potomac site between Maryland and Virginia and gave President George Washington the authority to define the precise boundaries. From 1800 to 1973, the District was governed directly by a presidentially-appointed Board of Commissioners with no elected local government. The District of Columbia Home Rule Act of 1973 finally established an elected Mayor and 13-member Council, but Congress retains authority to overturn DC laws within a 30-day review period and to control the District budget. DC residents pay federal income tax but have no voting representation in Congress — the slogan 'Taxation Without Representation' appears on every District licence plate. The non-voting Delegate to the United States House of Representatives can vote in committee but not on the House floor; there are no DC Senators. The 23rd Amendment (1961) gave DC three Electoral College votes for presidential elections. The DC statehood movement (Washington, DC Admission Act) — to admit the District as the 51st state under the proposed name 'Washington, Douglass Commonwealth' (preserving the DC initials and honouring abolitionist Frederick Douglass who lived in the city) — has passed the House twice (2020, 2021) but has never advanced in the Senate.

Travel Types

Federal District — Constitutional Status

The unique constitutional structure of a federal district — not a state, governed under the District Clause, with limited Home Rule since 1973, no voting representation in Congress, the 'Taxation Without Representation' licence-plate slogan, and the recurring DC statehood movement.

L'Enfant Plan & Monumental Core

The 1791 baroque diagonal-avenue plan with the Capitol and White House as focal points, the 1902 McMillan Plan that restored the open National Mall, the 1910 Height of Buildings Act capping building heights at the avenue width, and the constitutionally-significant federal core.

Embassy Row & Diplomatic Geography

The largest diplomatic concentration after Brussels and New York — 180 foreign embassies clustered along Massachusetts Avenue NW, in Kalorama and Sheridan-Kirk, plus the World Bank, IMF, OAS, IDB and PAHO international institutions, with the May Embassy Row Open House.

Across the Potomac — Arlington & Northern Virginia

Arlington National Cemetery and the Tomb of the Unknown Soldier directly across Memorial Bridge, the Pentagon, colonial Old Town Alexandria, George Washington's Mount Vernon, the Smithsonian Udvar-Hazy Center near Dulles, and the Wolf Trap National Park for the Performing Arts.

Maryland Side & Chesapeake Bay

Annapolis as Maryland's colonial capital and the United States Naval Academy, Baltimore's Inner Harbor and Fort McHenry, the Chesapeake Bay's blue crab and Eastern Shore villages, the C&O Canal towpath west to Cumberland, and the Frederick historic district.

Shenandoah & the Western Day-Trip Belt

The Shenandoah National Park's Skyline Drive along the Blue Ridge Mountains with Old Rag and Hawksbill summit hikes, Harpers Ferry at the confluence of the Potomac and Shenandoah, Antietam National Battlefield, and Charlottesville with Monticello and the University of Virginia.

Federal Calendar & the Capital Year

Cherry blossom peak-bloom in late March / early April, Independence Day fireworks on the Mall, the May Memorial Day weekend, the Embassy Row Open House, the National Book Festival, and the December National Christmas Tree Lighting on the Ellipse.

Practical Tips for the District of Columbia
  • •The District is a federal district, not a state — DC residents have no voting representation in Congress (one non-voting Delegate in the House, no Senators) but pay full federal income tax. The 'Taxation Without Representation' slogan appears on every DC licence plate.
  • •The DMV (DC, Maryland, Virginia) is the functional metropolitan region — most visitors will cross into Northern Virginia (Arlington, Alexandria) or Maryland (Bethesda, Silver Spring) by Metro or car. WMATA Metro, MARC commuter rail, VRE rail and Metrobus all operate jointly across the three jurisdictions.
  • •Smithsonian museums and the National Mall memorials are free — admission is never charged. The National Museum of African American History and Culture and the National Air and Space Museum require free timed-entry passes during peak periods (book online via si.edu).
  • •Cherry blossom peak bloom is typically late March to mid April — the National Park Service publishes a forecast 10 days ahead. The festival runs roughly 20 March to 16 April. Tidal Basin paddle-boats are available from late March through October.
  • •The White House public tour requires a request 90 days ahead through a US member of Congress (or, for foreign nationals, through their embassy in Washington). The Capitol Visitor Center handles Capitol tours with free advance online reservations recommended.
  • •Three airports serve the metropolitan region — Reagan National (DCA, 12 min by Metro), Dulles (IAD, 50 min by Silver Line Metro since 2022, the international hub), and Baltimore-Washington (BWI, 30-45 min by MARC or Amtrak). Choose by airline schedule, not airport.
  • •The Smithsonian Udvar-Hazy Center near Dulles Airport (40 km west of the District) is the off-Mall annex of the National Air and Space Museum, free admission, with the Space Shuttle Discovery, the Enola Gay, the SR-71 Blackbird and the Concorde — well worth the dedicated half-day trip if at Dulles in transit.
  • •Embassy Row is best walked rather than driven — the principal stretch along Massachusetts Avenue NW from Dupont Circle to the Naval Observatory is 2.5 km, and most consulates and embassies are on or within a block of the avenue. Many embassies don't post obvious signage.
  • •DC Metro fares are zone-based and time-of-day variable — peak weekday morning and evening fares run $2.25-$6.75 by distance; off-peak and weekend fares are flat lower. Use a SmarTrip card (plastic or Apple Pay / Google Pay digital) — paper farecards are no longer supported.
  • •The Washington Beltway (Interstate 495) is one of the most-congested motorways in the country, particularly weekday rush hours (6.30-9am, 4-7pm). Day trips to Annapolis, Baltimore or Shenandoah are best driven outside peak hours; Metro / MARC / Amtrak are usually faster for inner-DMV destinations.
  • •Tipping is customary in the United States: 18-22% in restaurants for table service, 15-20% for taxis, $1-2 per bag for bellhops, $2-5 per night for hotel housekeeping. Coffee shops and counter-service restaurants typically have a tip jar or 15-20% screen prompt. Tipping is not customary on the Metro or for self-service retail.
  • •The Mall's monuments are best photographed at sunrise (Lincoln Memorial faces east; the Capitol from the Mall faces east), or under stadium lights after dark — the National Mall is open 24 hours, the monuments are illuminated until 11.30pm. Park rangers stay on duty until 10pm.
Cities in District of Columbia

1 city with detailed travel information

Washington D.C.