The map above shows District of Columbia and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
District of Columbia vs United Kingdom Geography
Land area: District of Columbia has a land area of 61 square miles (158 km²), while United Kingdom has 93,410 square miles (241,930 km²). United Kingdom's land area is 1,531.2 times larger than District of Columbia's.
Total area: District of Columbia: 68 square miles (177 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water. United Kingdom's total area is 1,376.3 times larger than District of Columbia's.
Length: District of Columbia is 13 miles (22 km) long from north to south; United Kingdom is 747 miles (1,202 km). United Kingdom's north-south length is 57.5 times longer than District of Columbia's.
Width: District of Columbia spans 12 miles (19 km) east to west; United Kingdom spans 429 miles (690 km). United Kingdom's east-west width is 35.8 times wider than District of Columbia's.
Highest point: District of Columbia's highest point is Fort Reno at 429 feet (131 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m). Ben Nevis is 3,984 feet higher than Fort Reno.
Lowest point: District of Columbia's lowest point is Potomac River at 0 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet. United Kingdom's lowest point is 10 feet lower.
District of Columbia vs United Kingdom Population and History
Population: District of Columbia has a population of 702,250 (2024), while United Kingdom has 69,487,000 (2025). United Kingdom's population is 98.9 times larger than District of Columbia's.
Population density: District of Columbia: 11,493.5 people per square mile vs United Kingdom: 743.9. District of Columbia's population density is 15.5 times higher than United Kingdom's.
Biggest city: District of Columbia's biggest city is Washington with 702,250 people; United Kingdom's is London with 8,825,001. London's population is 12.6 times larger than Washington's.
Largest metro area: District of Columbia's largest metropolitan area is Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489 people) vs United Kingdom's London (10,416,420). London's population is 1.6 times (62%) larger than Washington-Arlington-Alexandria, DC-VA-MD-WV metro area's.
History: District of Columbia: The federal district, established by the Residence Act on July 16, 1790; not a state. United Kingdom: Formed as the United Kingdom of Great Britain and Ireland on January 1, 1801; took its current form in 1922. In its current form, District of Columbia is the older of the two by 11 years.
District of Columbia vs United Kingdom Economy
GDP: District of Columbia's GDP is $184.3 billion (2024) vs United Kingdom's $4,002.6 billion. United Kingdom's economic output is 21.7 times larger than District of Columbia's.
GDP per capita: District of Columbia: $262,439 per person vs United Kingdom: $57,602. District of Columbia's GDP per capita is 4.6 times (356%) higher than United Kingdom's.
Average income: District of Columbia: $111,185 vs United Kingdom: $54,550 average income per person (per capita personal income). District of Columbia's average income is 2.0 times (104%) higher than United Kingdom's.
Official Websites
District of Columbia official website · United Kingdom official website
More Size Comparisons
All District of Columbia size comparisons · All United Kingdom size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.