The map above shows Massachusetts and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Massachusetts vs United Kingdom Geography
Land area
- Massachusetts has a land area of 7,801 square miles (20,204 km²), while United Kingdom has 93,410 square miles (241,930 km²).
- United Kingdom's land area is 12.0 times larger than Massachusetts'.
Total area
- Massachusetts: 10,554 square miles (27,335 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water.
- United Kingdom's total area is 8.9 times (791%) larger than Massachusetts'.
Length
- Massachusetts is 123 miles (198 km) long from north to south; United Kingdom is 747 miles (1,202 km).
- United Kingdom's north-south length is 6.1 times (507%) longer than Massachusetts'.
Width
- Massachusetts spans 185 miles (297 km) east to west; United Kingdom spans 429 miles (690 km).
- United Kingdom's east-west width is 2.3 times (132%) wider than Massachusetts'.
Highest point
- Massachusetts's highest point is Mount Greylock at 3,489 feet (1,063 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m).
- Ben Nevis is 924 feet higher than Mount Greylock.
Lowest point
- Massachusetts's lowest point is Atlantic Ocean at 0 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet.
- United Kingdom's lowest point is 10 feet lower.
Massachusetts vs United Kingdom Population and History
Population
- Massachusetts has a population of 7,136,171 (2024), while United Kingdom has 69,487,000 (2025).
- United Kingdom's population is 9.7 times (874%) larger than Massachusetts'.
Population density
- Massachusetts: 914.8 people per square mile vs United Kingdom: 743.9.
- Massachusetts' population density is 1.2 times (23%) higher than United Kingdom's.
Biggest city
- Massachusetts's biggest city is Boston with 673,458 people; United Kingdom's is London with 8,825,001.
- London's population is 13.1 times larger than Boston's.
Largest metro area
- Massachusetts's largest metropolitan area is Boston-Cambridge-Newton, MA-NH metro area (5,025,517 people) vs United Kingdom's London (10,416,420).
- London's population is 2.1 times (107%) larger than Boston-Cambridge-Newton, MA-NH metro area's.
History
- Massachusetts: Admitted to the Union on February 6, 1788, as the 6th 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, Massachusetts is the older of the two by 13 years.
Massachusetts vs United Kingdom Economy
GDP
- Massachusetts's GDP is $778.5 billion (2024) vs United Kingdom's $4,002.6 billion.
- United Kingdom's economic output is 5.1 times (414%) larger than Massachusetts'.
GDP per capita
- Massachusetts: $109,095 per person vs United Kingdom: $57,602.
- Massachusetts' GDP per capita is 1.9 times (89%) higher than United Kingdom's.
Average income
- Massachusetts: $93,607 vs United Kingdom: $54,550 average income per person (per capita personal income).
- Massachusetts' average income is 1.7 times (72%) higher than United Kingdom's.
Official Websites
Massachusetts official website · United Kingdom official website
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More Size Comparisons
All Massachusetts 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.