The map above shows Maine and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs United Kingdom Geography
Land area
- Maine has a land area of 30,845 square miles (79,888 km²), while United Kingdom has 93,410 square miles (241,930 km²).
- United Kingdom's land area is 3.0 times (203%) larger than Maine's.
Total area
- Maine: 35,380 square miles (91,634 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water.
- United Kingdom's total area is 2.7 times (166%) larger than Maine's.
Length
- Maine is 311 miles (501 km) long from north to south; United Kingdom is 747 miles (1,202 km).
- United Kingdom's north-south length is 2.4 times (140%) longer than Maine's.
Width
- Maine spans 203 miles (327 km) east to west; United Kingdom spans 429 miles (690 km).
- United Kingdom's east-west width is 2.1 times (111%) wider than Maine's.
Highest point
- Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m).
- Mount Katahdin is 840 feet higher than Ben Nevis.
Lowest point
- Maine'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.
Maine vs United Kingdom Population and History
Population
- Maine has a population of 1,405,012 (2024), while United Kingdom has 69,487,000 (2025).
- United Kingdom's population is 49.5 times larger than Maine's.
Population density
- Maine: 45.6 people per square mile vs United Kingdom: 743.9.
- United Kingdom's population density is 16.3 times higher than Maine's.
Biggest city
- Maine's biggest city is Portland with 69,568 people; United Kingdom's is London with 8,825,001.
- London's population is 126.9 times larger than Portland's.
Largest metro area
- Maine's largest metropolitan area is Portland-South Portland, ME metro area (571,534 people) vs United Kingdom's London (10,416,420).
- London's population is 18.2 times larger than Portland-South Portland, ME metro area's.
History
- Maine: Admitted to the Union on March 15, 1820, as the 23rd 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 19 years.
Maine vs United Kingdom Economy
GDP
- Maine's GDP is $99.2 billion (2024) vs United Kingdom's $4,002.6 billion.
- United Kingdom's economic output is 40.3 times larger than Maine's.
GDP per capita
- Maine: $70,586 per person vs United Kingdom: $57,602.
- Maine's GDP per capita is 1.2 times (23%) higher than United Kingdom's.
Average income
- Maine: $68,932 vs United Kingdom: $54,550 average income per person (per capita personal income).
- Maine's average income is 1.3 times (26%) higher than United Kingdom's.
Official Websites
Maine official website · United Kingdom official website
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More Size Comparisons
All Maine 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.