The map above shows Iowa and Wyoming side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Iowa vs Wyoming Geography
Land area: Iowa has a land area of 55,854 square miles (144,660 km²), while Wyoming has 97,089 square miles (251,458 km²). Wyoming's land area is 1.7 times (74%) larger than Iowa's.
Total area: Iowa: 56,273 square miles (145,746 km²) vs Wyoming: 97,810 square miles (253,326 km²), including inland and coastal water. Wyoming's total area is 1.7 times (74%) larger than Iowa's.
Length: Iowa is 216 miles (347 km) long from north to south; Wyoming is 324 miles (522 km). Wyoming's north-south length is 1.5 times (50%) longer than Iowa's.
Width: Iowa spans 335 miles (539 km) east to west; Wyoming spans 410 miles (659 km). Wyoming's east-west width is 1.2 times (22%) wider than Iowa's.
Highest point: Iowa's highest point is Hawkeye Point at 1,669 feet (509 m); Wyoming's is Gannett Peak at 13,788 feet (4,203 m). Gannett Peak is 12,119 feet higher than Hawkeye Point.
Lowest point: Iowa's lowest point is Mississippi River at 480 feet; Wyoming's is Belle Fourche River at 3,108 feet. Iowa's lowest point is 2,628 feet lower.
Iowa vs Wyoming Population and History
Population: Iowa has a population of 3,241,488 (2024), while Wyoming has 587,618 (2024). Iowa's population is 5.5 times (452%) larger than Wyoming's.
Population density: Iowa: 58.0 people per square mile vs Wyoming: 6.1. Iowa's population density is 9.5 times (851%) higher than Wyoming's.
Biggest city: Iowa's biggest city is Des Moines with 213,096 people; Wyoming's is Cheyenne with 65,704. Des Moines' population is 3.2 times (224%) larger than Cheyenne's.
Largest metro area: Iowa's largest metropolitan area is Omaha, NE-IA metro area (1,001,010 people) vs Wyoming's Cheyenne, WY metro area (101,783). Omaha, NE-IA metro area's population is 9.8 times (883%) larger than Cheyenne, WY metro area's.
History: Iowa: Admitted to the Union on December 28, 1846, as the 29th state. Wyoming: Admitted to the Union on July 10, 1890, as the 44th state. In its current form, Iowa is the older of the two by 44 years.
Iowa vs Wyoming Economy
GDP: Iowa's GDP is $265.8 billion (2024) vs Wyoming's $51.5 billion. Iowa's economic output is 5.2 times (416%) larger than Wyoming's.
GDP per capita: Iowa: $81,998 per person vs Wyoming: $87,639. Wyoming's GDP per capita is 1.1 times (7%) higher than Iowa's.
Average income: Iowa: $65,225 vs Wyoming: $86,477 average income per person (per capita personal income). Wyoming's average income is 1.3 times (33%) higher than Iowa's.
Iowa vs Wyoming Counties
Number of counties: Iowa has 99 counties, while Wyoming has 23. Iowa's county count is 4.3 times (330%) higher than Wyoming's.
Biggest county by area: Iowa's largest county is Kossuth County at 973 square miles; Wyoming's is Sweetwater County at 10,427 square miles. Sweetwater County's land area is 10.7 times larger than Kossuth County's.
Smallest county by area: Iowa: Dickinson County (381 sq mi) vs Wyoming: Hot Springs County (2,004 sq mi). Hot Springs County's land area is 5.3 times (427%) larger than Dickinson County's.
Most populous county: Iowa: Polk County (516,185 people) vs Wyoming: Laramie County (101,783 people). Polk County's population is 5.1 times (407%) larger than Laramie County's.
Least populous county: Iowa: Adams County (3,606 people) vs Wyoming: Niobrara County (2,301 people). Adams County's population is 1.6 times (57%) larger than Niobrara County's.
Richest county: Iowa: Mitchell County ($98,211 per capita income) vs Wyoming: Teton County ($532,903). Teton County's income is 5.4 times (443%) richer than Mitchell County's.
Poorest county: Iowa: Decatur County ($46,134 per capita income) vs Wyoming: Uinta County ($50,370). Uinta County's income is 1.1 times (9%) richer than Decatur County's.
Iowa vs Wyoming Taxes
State income tax: Iowa has a top income tax rate of 3.8%, while Wyoming has no state income tax. Iowa's top rate is 3.8 percentage points higher.
Property tax: Iowa: 1.29% effective rate vs Wyoming: 0.57% of home value per year. Iowa's rate is 0.72 percentage points higher.
Sales tax: Iowa: 6.94% combined state and average local rate vs Wyoming: 5.39%. Iowa's combined rate is 1.55 percentage points higher.
Official Websites
Iowa official website · Wyoming official website
More Size Comparisons
All Iowa size comparisons · All Wyoming 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.