Washington
Washington, D.C. was the 24th most populous place in the United States as of 2010. Commuters from the surrounding Maryland and Virginia suburbs raise the city’s population to over one million during the workweek. The Washington Metropolitan Area, of which the District is a part, has a population of nearly 5.6 million, the seventh-largest metropolitan area in the country.
The centers of all three branches of the federal government of the United States are located in the District, as are many of the nation’s monuments and museums. Washington, D.C., hosts 176 foreign embassies as well as the headquarters of the World Bank, the International Monetary Fund (IMF), the Organization of American States (OAS), the Inter-American Development Bank, and the Pan American Health Organization (PAHO). The headquarters of many other institutions such as trade unions, non-profit organizations, lobbying groups, and professional associations are also located in the city
