The map above shows Iowa and United Kingdom side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Iowa vs United Kingdom Geography
Land area
- Iowa has a land area of 55,854 square miles (144,660 km²), while United Kingdom has 93,410 square miles (241,930 km²).
- United Kingdom's land area is 1.7 times (67%) larger than Iowa's.
Total area
- Iowa: 56,273 square miles (145,746 km²) vs United Kingdom: 94,058 square miles (243,610 km²), including inland and coastal water.
- United Kingdom's total area is 1.7 times (67%) larger than Iowa's.
Length
- Iowa is 216 miles (347 km) long from north to south; United Kingdom is 747 miles (1,202 km).
- United Kingdom's north-south length is 3.5 times (246%) longer than Iowa's.
Width
- Iowa spans 335 miles (539 km) east to west; United Kingdom spans 429 miles (690 km).
- United Kingdom's east-west width is 1.3 times (28%) wider than Iowa's.
Highest point
- Iowa's highest point is Hawkeye Point at 1,669 feet (509 m); United Kingdom's is Ben Nevis at 4,413 feet (1,345 m).
- Ben Nevis is 2,744 feet higher than Hawkeye Point.
Lowest point
- Iowa's lowest point is Mississippi River at 480 feet; United Kingdom's is The Fens (Holme Fen) at -10 feet.
- United Kingdom's lowest point is 490 feet lower.
Iowa vs United Kingdom Population and History
Population
- Iowa has a population of 3,241,488 (2024), while United Kingdom has 69,487,000 (2025).
- United Kingdom's population is 21.4 times larger than Iowa's.
Population density
- Iowa: 58.0 people per square mile vs United Kingdom: 743.9.
- United Kingdom's population density is 12.8 times higher than Iowa's.
Biggest city
- Iowa's biggest city is Des Moines with 213,096 people; United Kingdom's is London with 8,825,001.
- London's population is 41.4 times larger than Des Moines'.
Largest metro area
- Iowa's largest metropolitan area is Omaha, NE-IA metro area (1,001,010 people) vs United Kingdom's London (10,416,420).
- London's population is 10.4 times larger than Omaha, NE-IA metro area's.
History
- Iowa: Admitted to the Union on December 28, 1846, as the 29th 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 45 years.
Iowa vs United Kingdom Economy
GDP
- Iowa's GDP is $265.8 billion (2024) vs United Kingdom's $4,002.6 billion.
- United Kingdom's economic output is 15.1 times larger than Iowa's.
GDP per capita
- Iowa: $81,998 per person vs United Kingdom: $57,602.
- Iowa's GDP per capita is 1.4 times (42%) higher than United Kingdom's.
Average income
- Iowa: $65,225 vs United Kingdom: $54,550 average income per person (per capita personal income).
- Iowa's average income is 1.2 times (20%) higher than United Kingdom's.
Official Websites
Iowa official website · United Kingdom official website
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More Size Comparisons
All Iowa 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.