The map above shows United States and Kentucky side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
United States vs Kentucky Geography
Land area: United States has a land area of 3,533,467 square miles (9,151,637 km²), while Kentucky has 39,485 square miles (102,267 km²). United States' land area is 89.5 times larger than Kentucky's.
Total area: United States: 3,802,784 square miles (9,849,165 km²) vs Kentucky: 40,406 square miles (104,651 km²), including inland and coastal water. United States' total area is 94.1 times larger than Kentucky's.
Length: United States is 3,628 miles (5,839 km) long from north to south; Kentucky is 257 miles (414 km). United States' north-south length is 14.1 times longer than Kentucky's.
Width: United States spans 4,824 miles (7,763 km) east to west; Kentucky spans 418 miles (672 km). United States' east-west width is 11.5 times wider than Kentucky's.
Highest point: United States's highest point is Denali at 20,308 feet (6,190 m); Kentucky's is Black Mountain at 4,134 feet (1,260 m). Denali is 16,174 feet higher than Black Mountain.
Lowest point: United States's lowest point is Death Valley at -279 feet; Kentucky's is Mississippi River at 270 feet. United States's lowest point is 549 feet lower.
United States vs Kentucky Population and History
Population: United States has a population of 340,110,988 (2024), while Kentucky has 4,588,372 (2024). United States' population is 74.1 times larger than Kentucky's.
Population density: United States: 96.3 people per square mile vs Kentucky: 116.2. Kentucky's population density is 1.2 times (21%) higher than United States'.
Biggest city: United States's biggest city is New York with 8,478,072 people; Kentucky's is Louisville with 640,796. New York's population is 13.2 times larger than Louisville's.
Largest metro area: United States's largest metropolitan area is New York-Newark-Jersey City, NY-NJ metro area (19,940,274 people) vs Kentucky's Cincinnati, OH-KY-IN metro area (2,302,815). New York-Newark-Jersey City, NY-NJ metro area's population is 8.7 times (766%) larger than Cincinnati, OH-KY-IN metro area's.
History: United States: Declared independence on July 4, 1776. Kentucky: Admitted to the Union on June 1, 1792, as the 15th state. In its current form, United States is the older of the two by 16 years.
United States vs Kentucky Economy
GDP: United States's GDP is $30,769.7 billion (2025) vs Kentucky's $295.4 billion. United States' economic output is 104.2 times larger than Kentucky's.
GDP per capita: United States: $89,599 per person vs Kentucky: $64,375. United States' GDP per capita is 1.4 times (39%) higher than Kentucky's.
Official Websites
United States official website · Kentucky official website
More Size Comparisons
All United States size comparisons · All Kentucky 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.