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District of Columbia, Washington, D.C.

  •   State: 
    District of Columbia
    38°54′17″N 77°00′59″W
      Area total: 
    68.35 sq mi (177.0 km²) [87,489.280 acres]
      Area land: 
    61.126 sq mi (158.32 km²) [78,254.080 acres]
      Area water: 
    10.57% = 7.224 sq mi (18.71 km²) [9,235.200 acres]
    409 ft (125 m)
    July 16, 1790
      Capital seat: 

    Washington, D.C.

  • District of Columbia (Washington, D.C.), United States

  •   Population: 
      Population density: 
    11,280.71/sq mi (4,355.39/km²) - residents per square mile of area.
      Household income: 
      Unemployment rate: 
  •   Sales taxes: 
      Income taxes: 
    $162,314 (2022) nominal GDP at current prices 2022 (millions of U.S. dollars). This is equivalent to 0.67% of the U.S. national real gross domestic product (GDP) in 2022, or 0.70% from 2021.  5.2% change in GDP from 2022 to 2021 =  8,644. Real GDP growth rate (2021–2022) =  2.8%. Nominal GDP per capita 2022 = $242,853 respectively per capita 2023 = $239,861.
      Housing units: 
    360,890 units, July 1, 2022 estimate = a 3.0% increase compared to 2020, specifically 10,525 more housing units.

Washington, D.C., formally the District of Columbia and commonly referred to as Washington or D.C., is the capital of the United States. Founded after the American Revolution as the seat of government of the newly independent country, Washington was named after George Washington, first President of the United States and Founding Father. As the seat of the United States federal government and several international organizations, Washington is an important world political capital. The city is also one of the most visited cities in the world, with more than 20 million tourists annually. The signing of the Residence Act on July 16, 1790, approved the creation of a capital district located along the Potomac River on the country's East Coast. The U.S. Constitution provided for a federal district under the exclusive jurisdiction of the U.S. Congress, and the District is therefore not a part of any state. The states of Maryland and Virginia each donated land to form the federal district, which included the pre-existing settlements of Georgetown and Alexandria. The City of Washington was founded in 1791 to serve as the new national capital. In 1846, Congress returned the land originally ceded by Virginia; in 1871, it created a single municipal government for the remaining portion of the District. Washington had an estimated population of 702,455 as of July 2018, making it the 20th most populous city in the United States. Commuters from the surrounding Maryland and Virginia suburbs raise the city's daytime population to more than one million during the workweek.

Washington, D.C. is the capital of the United States. It is not located in any state and is instead a territory of its own. Washington D.C. is not a state but a federal district which was hived from the states of Virginia and Maryland in 1790. As such, it has no voting representation in Senate. While it is not a state, it still has state organs such as the State Board of Education and the State Board of Elections. The District of Columbia occupies an area of 68 square miles and is home to over half a million people.

The high population translates to an equally-high population density of over 11,300 persons per square mile. However, the population balloons in the daytime as people residing in the neighboring states of Virginia and Maryland commute to Washington to work. As the nation’s capital, D.C. is home to a large number of government offices which include the White House and the US Capitol. Unlike other cities in the United States, Washington has no true skyscrapers.

As it is not a state, the District of Columbia has no representation in the US Senate. The District has one representative at the House of Representatives, but the delegate has no authority to vote on the floor of the House. The delegate is, however, allowed to introduce bills and participate during debates. Many residents see the lack of representation of Washington D.C. as unjust since the residents are still subjected to federal taxation. Nonetheless, Washington D.C. residents can vote during Presidential elections, with the District having a long history of supporting Democratic presidential candidates.

The National Mall is one of the most picturesque areas of the city, highlighted by the towering Washington Monument in the center, and lined with several commemorative monuments. Even if you are in town only for a short trip, this is a must-visit stop for any first-time visitor. Take a guided tour of the legendary building that houses the American legislature. The U.S. Capitol Visitor Center has a ton of information about the history and the operations of this house of government. The largest library in the world and one of the most prestigious, the stunning Library of Congress sits in three buildings and houses over 160 million items. It is also the oldest federal cultural institution in the U.S. Take a look at historic aircraft and space vehicles including the Apollo Space Module, see how an actual space toilet looks, and peer through a giant telescope at the Smithsonian National Air and Space Museum. With lots of interactive exhibits and fascinating pieces to learn about, this stop will leave you in awe. The foundation of Washington (the town) is unique among American cities because the new Constitution of the fledgling United States gave the recently organized Congress of the United States authority to establish a federal territory. The states of Maryland and Virginia donated land to form the federal district. The capital city was named in honor of George Washington, one of the Founding Fathers of the United States and the 1st President of the nation. Washington D.C.'s economy is based to 25% on lucrative federal jobs. One-quarter of the city's workforce is employed at a federal governmental agency. The second largest source of municipal revenue is tourism. 22.8 million visitors flooded the city in 2017 and spent $7.53 billion. You can tour the White House, the iconic home of America’s president, by scheduling a visit in advance. Even if you are unable to schedule a visit, walk around to the back to get a closer view of the building. Tour the Supreme Court of the United States and attend a free lecture about the building’s history and the proceedings of the court. If the court is in session (Monday–Wednesday during the months of October–April), arrive early to get a free spot to watch a case being argued. The neoclassical Lincoln Memorial is a tribute to America’s 16th president and is best seen at night. Located at the western end of the National Mall, the views from the memorial are nothing short of spectacular. Browse through the National Gallery of Art’s exhibits, featuring works of art from numerous countries, artists, and historical eras. Go up to the rooftop to get a fabulous view of the Capitol, and also make sure to take the groovy tunnel between the East and West Building.

The US State Washington D.C. occupies 158 m², about 0,01 % of the total territory of the USA of 9,148,020 m². The total population of the US State Washington D.C. with 693,972 inhabitants (in 2017) has already increased by 21,31 % in this millennium. Almost 40 years ago there were 55,639 fewer people. The capital Washington alone has 702,455 inhabitants.

District of Columbia, federal district (2010 pop. 601,723, a 5.2% increase in population since the 2000 census), 69 sq mi (179 sq km), on the east bank of the Potomac River, coextensive with the city of Washington, D.C. (the capital of the United States). The District was established by congressional acts of 1790 and 1791 and selected by George Washington. It was originally a 10-mi (16.1-km) square (100 sq mi/259 sq km), with Maryland and Virginia granting land on each side of the river, including Georgetown, Md., and Alexandria , Va. The " Federal City " was laid out at its center. Alexandria was returned to Virginia in 1847. The city continued to grow on the east bank of the river and in 1878, when Georgetown became a part of Washington (although it continued to operate as a separate city until 1895), the city of Washington and the District of Columbia became one and the same. Although " Washington " is the name known throughout the world, the city is more commonly called " the District " by its own residents.

Washington's metropolitan area, the country's sixth largest, had a 2017 estimated population of 6.2 million residents. All three branches of the U.S. federal government are centered in the District: Congress (legislative), president (executive), and the U.S. Supreme Court (judicial). Washington is home to many national monuments, and museums, primarily situated on or around the National Mall. The city hosts 177 foreign embassies as well as the headquarters of many international organizations, trade unions, non-profit, lobbying groups, and professional associations, including the World Bank Group, the International Monetary Fund (IMF), the Organization of American States, AARP, the National Geographic Society, the Human Rights Campaign, the International Finance Corporation, and the American Red Cross. A locally elected mayor and a 13 member council have governed the District since 1973. However, Congress maintains supreme authority over the city and may overturn local laws. D.C. residents elect a non-voting, at-large congressional delegate to the House of Representatives, but the District has no representation in the Senate. The District receives three electoral votes in presidential elections as permitted by the Twenty-third Amendment to the United States Constitution, ratified in 1961. Washington, D.C. is located in the mid-Atlantic region of the U.S. East Coast. Due to the District of Columbia retrocession, the city has a total area of 68.34 square miles (177.0 km²), of which 61.05 square miles (158.1 km²) is land and 7.29 square miles (18.9 km²) (10.67%) is water. The District is bordered by Montgomery County, Maryland to the northwest; Prince George's County, Maryland to the east; Arlington County, Virginia to the south; and Alexandria, Virginia to the west.

District of Columbia (Washington DC) is known under different nicknames; aka Nation's Capital, or DMV (nickname for the broader metropolitan area of the District of Columbia, Maryland, and Virginia), or Inside the Beltway, or Chocolate City and detailed official information about District of Columbia (Washington DC) can be found on the homepage at

Poverty and median household income estimates for 2021 in District of Columbia, Washington, D.C. about 107,307 individuals poverty estimate - all ages, it's 16.8% estimated percent of the total resident population of all ages in poverty: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE) Program Release date: December 2022. SNAP is the Supplemental Nutrition Assistance Program, and was formerly known as the Food Stamp Program. Estimated SNAP benefits recipients in District of Columbia are about 137,653 individuals, for July of the reference year 2020. With a estimate of median household income = $91,072 by each individual family, with a 90% confidence interval lower bound of estimate of median household income = $88,170, with a 90% confidence interval upper bound of estimate of median household income = $93,974 in 2021.

The Air Quality index is in District of Columbia = 6.8. These Air Quality index is based on annual reports from the EPA. Higher values are better (100=best). The number of ozone alert days is used as an indicator of air quality, as are the amounts of seven pollutants including particulates, carbon monoxide, sulfur dioxide, lead, and volatile organic chemicals. The Water Quality Index is 40. A measure of the quality of an area’s water supply as rated by the EPA. Higher values are better (100=best). The EPA has a complex method of measuring the watershed quality, using 15 indicators such as pollutants, turbidity, sediments, and toxic discharges. The Superfund Sites Index is 90. Higher is better (100=best). Based upon the number and impact of EPA Superfund pollution sites in the county, including spending on the cleanup efforts. The UV Index in District of Columbia = 4.1 and is a measure of an area's exposure to the sun's ultraviolet rays. This is most often a combination of sunny weather, altitude, and latitude. The UV Index has been defined by the WHO ( and is uniform worldwide.

The annual rainfall in District of Columbia = 43.4 inches and the annual snowfall = 14 inches. The annual number of days with measurable precipitation (over .01 inch) = 113. The average number of days per year that are predominantly sunny = 202. 87.6 degrees Fahrenheit is the average daily high temperature for the month of July and 25.9 degrees Fahrenheit is the average daily low temperature for the month of January. The Comfort Index (higher=better) is 41, where higher values mean a more pleasant climate. The Comfort Index measure recognizes that humidity by itself isn't the problem. (Have you noticed nobody ever complains about the weather being 'cold and humid?) It's in the summertime that we notice the humidity the most, when it's hot and muggy. Our Comfort Index uses a combination of afternoon summer temperature and humidity to closely predict the effect that the humidity will have on people.

The most recent state population of 689,545 individuals with a median age of 35.5 age the population grows by 3.64% in District of Columbia population since 2000 and are distributed over a density of 11,280.71/sq mi (4,355.39/km²) - residents per square mile of area.. There are average 2.57 people per household in the 260,749 households with an average household income of $55,791 a year. The unemployment rate in Alabama is 12.10% of the available work force and has dropped -5.29% over the most recent 12-month period and the projected change in job supply over the next decade based on migration patterns, economic growth, and other factors will increase by 17.32%. The number of physicians in District of Columbia per 100,000 population = 477.4.

The percentage of housing units in District of Columbia which are owned by the occupant = 36.50%. A housing unit is a house, apartment, mobile home, or room occupied as separate living quarters. The average age of homes = 56 years with median home cost = $346,700 and home appreciation of -7.07%. This is the value of the years most recent home sales data. Its important to note that this is not the average (or arithmetic mean). The median home price is the middle value when you arrange all the sales prices of homes from lowest to highest. This is a better indicator than the average, because the median is not changed as much by a few unusually high or low values. The property tax rate of $6.16 shown here is the rate per $1,000 of home value. If for simplification for example the tax rate is $14.00 and the home value is $250,000, the property tax would be $14.00 x ($250,000/1000), or $3500. This is the 'effective' tax rate.

The local school district spends $8,030 per student. There are 11.4 students for each teacher in the school, 1449 students for each Librarian and 989 students for each Counselor. 2.75% of the area’s population over the age of 25 with an Associate Degree or other 2-year college degree, 18.33% with a master’s degree, Ph.D. or other advanced college degree and 21.33% with high school diplomas or high school equivalency degrees (GEDs).

  • District of Columbia's population of 131,700 residents in 1870 has increased 2,47-fold to 689,545 residents after 150 years, according to the official 2020 census. U.S. Bureau of the Census beginning in 1900. Data for 1870-1890 are on a de facto or unspecified basis; data for 1900 and later years are resident totals.

    Approximately 52.63% female residents and 47.37% male residents live in District of Columbia, USA.

    As of 2020, 34.21% in District of Columbia (Washington, D.C.) are married and the remaining 65.79% are single population.

  • 32.1 minutes is the average time that residents in District of Columbia require for a one-way commute to work. A long commute can have different effects on health. A Gallup poll in the US found that in terms of mental health, long haul commuters are up to 12 percent more likely to experience worry, and ten percent less likely to feel well rested. The Gallup poll also found that of people who commute 61­–90 minutes each day, a whopping one third complained of neck and back pain, compared to less than a quarter of people who only spend ten minutes getting to work.

    38.01% of the working population which commute to work alone in their car, 10.87% of the working population which commutes to work in a carpool, 33.22% of the population that commutes using mass transit, including bus, light rail, subway, and ferry. 3.76% of the population that has their home as their principal place of work.

  • Of the total residential buildings in District of Columbia (Washington, D.C.), 36.50% are owner-occupied homes, another 9.13% are rented apartments, and the remaining 54.37% are vacant.

  • 68.83% of the population in District of Columbia who identify themselves as belonging to a religion are distributed among the following most diverse religions.

    Since the 1860s, the two main parties have been the Republican Party (here in 2022 = 6.530%) and the Democratic Party (here in 2022 = 92.460%) of those eligible to vote in District of Columbia.

Skyline of District of Columbia, Washington, D.C.

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Landscape of District of Columbia, Washington, D.C.