The map above shows Northern Mariana Islands and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Northern Mariana Islands vs United Kingdom Geography
Land area: Northern Mariana Islands has a land area of 179 square miles (464 km²), while United Kingdom has 93,410 square miles (241,930 km²). United Kingdom's land area is 521.4 times larger than Northern Mariana Islands'.
Total area: Northern Mariana Islands: 179 square miles (464 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water. United Kingdom's total area is 525.0 times larger than Northern Mariana Islands'.
Length: Northern Mariana Islands is 326 miles (524 km) long from north to south; United Kingdom is 747 miles (1,202 km). United Kingdom's north-south length is 2.3 times (129%) longer than Northern Mariana Islands'.
Width: Northern Mariana Islands spans 278 miles (448 km) east to west; United Kingdom spans 429 miles (690 km). United Kingdom's east-west width is 1.5 times (54%) wider than Northern Mariana Islands'.
Highest point: Northern Mariana Islands's highest point is Agrihan at 3,166 feet (965 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m). Ben Nevis is 1,247 feet higher than Agrihan.
Lowest point: Northern Mariana Islands's lowest point is Pacific Ocean at 0 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet. United Kingdom's lowest point is 10 feet lower.
Northern Mariana Islands vs United Kingdom Population and History
Population: Northern Mariana Islands has a population of 47,329 (2020), while United Kingdom has 69,487,000 (2025). United Kingdom's population is 1,468.2 times larger than Northern Mariana Islands'.
Population density: Northern Mariana Islands: 264.4 people per square mile vs United Kingdom: 743.9. United Kingdom's population density is 2.8 times (181%) higher than Northern Mariana Islands'.
History: Northern Mariana Islands: A US commonwealth since 1978. 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 177 years.
Official Websites
Northern Mariana Islands official website · United Kingdom official website
More Size Comparisons
All Northern Mariana Islands 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.