The map above shows Mississippi and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mississippi vs United Kingdom Geography
Land area: Mississippi has a land area of 46,925 square miles (121,534 km²), while United Kingdom has 93,410 square miles (241,930 km²). United Kingdom's land area is 2.0 times (99%) larger than Mississippi's.
Total area: Mississippi: 48,436 square miles (125,448 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water. United Kingdom's total area is 1.9 times (94%) larger than Mississippi's.
Length: Mississippi is 337 miles (542 km) long from north to south; United Kingdom is 747 miles (1,202 km). United Kingdom's north-south length is 2.2 times (122%) longer than Mississippi's.
Width: Mississippi spans 340 miles (547 km) east to west; United Kingdom spans 429 miles (690 km). United Kingdom's east-west width is 1.3 times (26%) wider than Mississippi's.
Highest point: Mississippi's highest point is Woodall Mountain at 805 feet (245 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m). Ben Nevis is 3,608 feet higher than Woodall Mountain.
Lowest point: Mississippi's lowest point is Gulf of Mexico at 0 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet. United Kingdom's lowest point is 10 feet lower.
Mississippi vs United Kingdom Population and History
Population: Mississippi has a population of 2,943,045 (2024), while United Kingdom has 69,487,000 (2025). United Kingdom's population is 23.6 times larger than Mississippi's.
Population density: Mississippi: 62.7 people per square mile vs United Kingdom: 743.9. United Kingdom's population density is 11.9 times higher than Mississippi's.
Biggest city: Mississippi's biggest city is Jackson with 141,449 people; United Kingdom's is London with 8,825,001. London's population is 62.4 times larger than Jackson's.
Largest metro area: Mississippi's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs United Kingdom's London (10,416,420). London's population is 7.8 times (678%) larger than Memphis, TN-MS-AR metro area's.
History: Mississippi: Admitted to the Union on December 10, 1817, as the 20th 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 16 years.
Mississippi vs United Kingdom Economy
GDP: Mississippi's GDP is $158.2 billion (2024) vs United Kingdom's $4,002.6 billion. United Kingdom's economic output is 25.3 times larger than Mississippi's.
GDP per capita: Mississippi: $53,751 per person vs United Kingdom: $57,602. United Kingdom's GDP per capita is 1.1 times (7%) higher than Mississippi's.
Average income: Mississippi: $52,074 vs United Kingdom: $54,550 average income per person (per capita personal income). United Kingdom's average income is 1.0 times (5%) higher than Mississippi's.
Official Websites
Mississippi official website · United Kingdom official website
More Size Comparisons
All Mississippi 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.