The map above shows Missouri and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Missouri vs United Kingdom Geography
Land area: Missouri has a land area of 68,746 square miles (178,052 km²), while United Kingdom has 93,410 square miles (241,930 km²). United Kingdom's land area is 1.4 times (36%) larger than Missouri's.
Total area: Missouri: 69,707 square miles (180,540 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water. United Kingdom's total area is 1.3 times (35%) larger than Missouri's.
Length: Missouri is 328 miles (529 km) long from north to south; United Kingdom is 747 miles (1,202 km). United Kingdom's north-south length is 2.3 times (128%) longer than Missouri's.
Width: Missouri spans 437 miles (703 km) east to west; United Kingdom spans 429 miles (690 km). Missouri and United Kingdom have about the same east-west width.
Highest point: Missouri's highest point is Taum Sauk Mountain at 1,771 feet (540 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m). Ben Nevis is 2,642 feet higher than Taum Sauk Mountain.
Lowest point: Missouri's lowest point is St. Francis River at 230 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet. United Kingdom's lowest point is 240 feet lower.
Missouri vs United Kingdom Population and History
Population: Missouri has a population of 6,245,466 (2024), while United Kingdom has 69,487,000 (2025). United Kingdom's population is 11.1 times larger than Missouri's.
Population density: Missouri: 90.8 people per square mile vs United Kingdom: 743.9. United Kingdom's population density is 8.2 times (719%) higher than Missouri's.
Biggest city: Missouri's biggest city is Kansas City with 516,032 people; United Kingdom's is London with 8,825,001. London's population is 17.1 times larger than Kansas City's.
Largest metro area: Missouri's largest metropolitan area is St. Louis, MO-IL metro area (2,811,927 people) vs United Kingdom's London (10,416,420). London's population is 3.7 times (270%) larger than St. Louis, MO-IL metro area's.
History: Missouri: Admitted to the Union on August 10, 1821, as the 24th 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, United Kingdom is the older of the two by 20 years.
Missouri vs United Kingdom Economy
GDP: Missouri's GDP is $448.7 billion (2024) vs United Kingdom's $4,002.6 billion. United Kingdom's economic output is 8.9 times (792%) larger than Missouri's.
GDP per capita: Missouri: $71,846 per person vs United Kingdom: $57,602. Missouri's GDP per capita is 1.2 times (25%) higher than United Kingdom's.
Average income: Missouri: $64,920 vs United Kingdom: $54,550 average income per person (per capita personal income). Missouri's average income is 1.2 times (19%) higher than United Kingdom's.
Official Websites
Missouri official website · United Kingdom official website
More Size Comparisons
All Missouri 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.