The map above shows Connecticut and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs United Kingdom Geography
Land area
- Connecticut has a land area of 4,843 square miles (12,542 km²), while United Kingdom has 93,410 square miles (241,930 km²).
- United Kingdom's land area is 19.3 times larger than Connecticut's.
Total area
- Connecticut: 5,544 square miles (14,358 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water.
- United Kingdom's total area is 17.0 times larger than Connecticut's.
Length
- Connecticut is 73 miles (118 km) long from north to south; United Kingdom is 747 miles (1,202 km).
- United Kingdom's north-south length is 10.2 times longer than Connecticut's.
Width
- Connecticut spans 104 miles (167 km) east to west; United Kingdom spans 429 miles (690 km).
- United Kingdom's east-west width is 4.1 times (313%) wider than Connecticut's.
Highest point
- Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m).
- Ben Nevis is 2,037 feet higher than Mount Frissell (south slope).
Lowest point
- Connecticut's lowest point is Long Island Sound at 0 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet.
- United Kingdom's lowest point is 10 feet lower.
Connecticut vs United Kingdom Population and History
Population
- Connecticut has a population of 3,675,069 (2024), while United Kingdom has 69,487,000 (2025).
- United Kingdom's population is 18.9 times larger than Connecticut's.
Population density
- Connecticut: 758.9 people per square mile vs United Kingdom: 743.9.
- Connecticut and United Kingdom have about the same population density.
Biggest city
- Connecticut's biggest city is Bridgeport with 151,599 people; United Kingdom's is London with 8,825,001.
- London's population is 58.2 times larger than Bridgeport's.
Largest metro area
- Connecticut's largest metropolitan area is Hartford-West Hartford-East Hartford, CT metro area (1,169,048 people) vs United Kingdom's London (10,416,420).
- London's population is 8.9 times (791%) larger than Hartford-West Hartford-East Hartford, CT metro area's.
History
- Connecticut: Admitted to the Union on January 9, 1788, as the 5th 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, Connecticut is the older of the two by 13 years.
Connecticut vs United Kingdom Economy
GDP
- Connecticut's GDP is $356.8 billion (2024) vs United Kingdom's $4,002.6 billion.
- United Kingdom's economic output is 11.2 times larger than Connecticut's.
GDP per capita
- Connecticut: $97,096 per person vs United Kingdom: $57,602.
- Connecticut's GDP per capita is 1.7 times (69%) higher than United Kingdom's.
Average income
- Connecticut: $95,067 vs United Kingdom: $54,550 average income per person (per capita personal income).
- Connecticut's average income is 1.7 times (74%) higher than United Kingdom's.
Official Websites
Connecticut official website · United Kingdom official website
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More Size Comparisons
All Connecticut 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.