The map above shows Iowa and Oregon side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Iowa vs Oregon Geography
Land area: Iowa has a land area of 55,854 square miles (144,660 km²), while Oregon has 95,997 square miles (248,630 km²). Oregon's land area is 1.7 times (72%) larger than Iowa's.
Total area: Iowa: 56,273 square miles (145,746 km²) vs Oregon: 98,379 square miles (254,799 km²), including inland and coastal water. Oregon's total area is 1.7 times (75%) larger than Iowa's.
Length: Iowa is 216 miles (347 km) long from north to south; Oregon is 453 miles (730 km). Oregon's north-south length is 2.1 times (110%) longer than Iowa's.
Width: Iowa spans 335 miles (539 km) east to west; Oregon spans 445 miles (715 km). Oregon's east-west width is 1.3 times (33%) wider than Iowa's.
Highest point: Iowa's highest point is Hawkeye Point at 1,669 feet (509 m); Oregon's is Mount Hood at 11,232 feet (3,424 m). Mount Hood is 9,563 feet higher than Hawkeye Point.
Lowest point: Iowa's lowest point is Mississippi River at 480 feet; Oregon's is Pacific Ocean at 0 feet. Oregon's lowest point is 480 feet lower.
Iowa vs Oregon Population and History
Population: Iowa has a population of 3,241,488 (2024), while Oregon has 4,272,371 (2024). Oregon's population is 1.3 times (32%) larger than Iowa's.
Population density: Iowa: 58.0 people per square mile vs Oregon: 44.5. Iowa's population density is 1.3 times (30%) higher than Oregon's.
Biggest city: Iowa's biggest city is Des Moines with 213,096 people; Oregon's is Portland with 635,749. Portland's population is 3.0 times (198%) larger than Des Moines'.
Largest metro area: Iowa's largest metropolitan area is Omaha, NE-IA metro area (1,001,010 people) vs Oregon's Portland-Vancouver-Hillsboro, OR-WA metro area (2,537,904). Portland-Vancouver-Hillsboro, OR-WA metro area's population is 2.5 times (154%) larger than Omaha, NE-IA metro area's.
History: Iowa: Admitted to the Union on December 28, 1846, as the 29th state. Oregon: Admitted to the Union on February 14, 1859, as the 33rd state. In its current form, Iowa is the older of the two by 13 years.
Iowa vs Oregon Economy
GDP: Iowa's GDP is $265.8 billion (2024) vs Oregon's $330.2 billion. Oregon's economic output is 1.2 times (24%) larger than Iowa's.
GDP per capita: Iowa: $81,998 per person vs Oregon: $77,299. Iowa's GDP per capita is 1.1 times (6%) higher than Oregon's.
Average income: Iowa: $65,225 vs Oregon: $70,823 average income per person (per capita personal income). Oregon's average income is 1.1 times (9%) higher than Iowa's.
Iowa vs Oregon Counties
Number of counties: Iowa has 99 counties, while Oregon has 36. Iowa's county count is 2.8 times (175%) higher than Oregon's.
Biggest county by area: Iowa's largest county is Kossuth County at 973 square miles; Oregon's is Harney County at 10,134 square miles. Harney County's land area is 10.4 times larger than Kossuth County's.
Smallest county by area: Iowa: Dickinson County (381 sq mi) vs Oregon: Multnomah County (431 sq mi). Multnomah County's land area is 1.1 times (13%) larger than Dickinson County's.
Most populous county: Iowa: Polk County (516,185 people) vs Oregon: Multnomah County (795,897 people). Multnomah County's population is 1.5 times (54%) larger than Polk County's.
Least populous county: Iowa: Adams County (3,606 people) vs Oregon: Wheeler County (1,456 people). Adams County's population is 2.5 times (148%) larger than Wheeler County's.
Richest county: Iowa: Mitchell County ($98,211 per capita income) vs Oregon: Deschutes County ($86,176). Mitchell County's income is 1.1 times (14%) richer than Deschutes County's.
Poorest county: Iowa: Decatur County ($46,134 per capita income) vs Oregon: Malheur County ($42,974). Decatur County's income is 1.1 times (7%) richer than Malheur County's.
Iowa vs Oregon Taxes
State income tax: Iowa has a top income tax rate of 3.8%, while Oregon has a top income tax rate of 9.9%. Oregon's top rate is 6.1 percentage points higher.
Property tax: Iowa: 1.29% effective rate vs Oregon: 0.78% of home value per year. Iowa's rate is 0.51 percentage points higher.
Sales tax: Iowa: 6.94% combined state and average local rate vs Oregon: 0%. Iowa's combined rate is 6.94 percentage points higher.
Official Websites
Iowa official website · Oregon official website
More Size Comparisons
All Iowa size comparisons · All Oregon 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.