The map above shows Kentucky and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kentucky vs United Kingdom Geography
Land area
- Kentucky has a land area of 39,485 square miles (102,267 km²), while United Kingdom has 93,410 square miles (241,930 km²).
- United Kingdom's land area is 2.4 times (137%) larger than Kentucky's.
Total area
- Kentucky: 40,406 square miles (104,651 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water.
- United Kingdom's total area is 2.3 times (133%) larger than Kentucky's.
Length
- Kentucky is 257 miles (414 km) long from north to south; United Kingdom is 747 miles (1,202 km).
- United Kingdom's north-south length is 2.9 times (191%) longer than Kentucky's.
Width
- Kentucky spans 418 miles (672 km) east to west; United Kingdom spans 429 miles (690 km).
- Kentucky and United Kingdom have about the same east-west width.
Highest point
- Kentucky's highest point is Black Mountain at 4,134 feet (1,260 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m).
- Ben Nevis is 279 feet higher than Black Mountain.
Lowest point
- Kentucky's lowest point is Mississippi River at 270 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet.
- United Kingdom's lowest point is 280 feet lower.
Kentucky vs United Kingdom Population and History
Population
- Kentucky has a population of 4,588,372 (2024), while United Kingdom has 69,487,000 (2025).
- United Kingdom's population is 15.1 times larger than Kentucky's.
Population density
- Kentucky: 116.2 people per square mile vs United Kingdom: 743.9.
- United Kingdom's population density is 6.4 times (540%) higher than Kentucky's.
Biggest city
- Kentucky's biggest city is Louisville with 640,796 people; United Kingdom's is London with 8,825,001.
- London's population is 13.8 times larger than Louisville's.
Largest metro area
- Kentucky's largest metropolitan area is Cincinnati, OH-KY-IN metro area (2,302,815 people) vs United Kingdom's London (10,416,420).
- London's population is 4.5 times (352%) larger than Cincinnati, OH-KY-IN metro area's.
History
- Kentucky: Admitted to the Union on June 1, 1792, as the 15th 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, Kentucky is the older of the two by 9 years.
Kentucky vs United Kingdom Economy
GDP
- Kentucky's GDP is $295.4 billion (2024) vs United Kingdom's $4,002.6 billion.
- United Kingdom's economic output is 13.5 times larger than Kentucky's.
GDP per capita
- Kentucky: $64,375 per person vs United Kingdom: $57,602.
- Kentucky's GDP per capita is 1.1 times (12%) higher than United Kingdom's.
Average income
- Kentucky: $58,256 vs United Kingdom: $54,550 average income per person (per capita personal income).
- Kentucky's average income is 1.1 times (7%) higher than United Kingdom's.
Official Websites
Kentucky official website · United Kingdom official website
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More Size Comparisons
All Kentucky 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.