The map above shows Colorado and Oregon side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Colorado vs Oregon Geography
Land area: Colorado has a land area of 103,637 square miles (268,419 km²), while Oregon has 95,997 square miles (248,630 km²). Colorado's land area is 1.1 times (8%) larger than Oregon's.
Total area: Colorado: 104,095 square miles (269,605 km²) vs Oregon: 98,379 square miles (254,799 km²), including inland and coastal water. Colorado's total area is 1.1 times (6%) larger than Oregon's.
Length: Colorado is 467 miles (751 km) long from north to south; Oregon is 453 miles (730 km). Colorado and Oregon have about the same north-south length.
Width: Colorado spans 387 miles (622 km) east to west; Oregon spans 445 miles (715 km). Oregon's east-west width is 1.1 times (15%) wider than Colorado's.
Highest point: Colorado's highest point is Mount Elbert at 14,422 feet (4,396 m); Oregon's is Mount Hood at 11,232 feet (3,424 m). Mount Elbert is 3,190 feet higher than Mount Hood.
Lowest point: Colorado's lowest point is Arikaree River at 3,326 feet; Oregon's is Pacific Ocean at 0 feet. Oregon's lowest point is 3,326 feet lower.
Colorado vs Oregon Population and History
Population: Colorado has a population of 5,957,493 (2024), while Oregon has 4,272,371 (2024). Colorado's population is 1.4 times (39%) larger than Oregon's.
Population density: Colorado: 57.5 people per square mile vs Oregon: 44.5. Colorado's population density is 1.3 times (29%) higher than Oregon's.
Biggest city: Colorado's biggest city is Denver with 729,019 people; Oregon's is Portland with 635,749. Denver's population is 1.1 times (15%) larger than Portland's.
Largest metro area: Colorado's largest metropolitan area is Denver-Aurora-Centennial, CO metro area (3,052,498 people) vs Oregon's Portland-Vancouver-Hillsboro, OR-WA metro area (2,537,904). Denver-Aurora-Centennial, CO metro area's population is 1.2 times (20%) larger than Portland-Vancouver-Hillsboro, OR-WA metro area's.
History: Colorado: Admitted to the Union on August 1, 1876, as the 38th state. Oregon: Admitted to the Union on February 14, 1859, as the 33rd state. In its current form, Oregon is the older of the two by 17 years.
Colorado vs Oregon Economy
GDP: Colorado's GDP is $557.6 billion (2024) vs Oregon's $330.2 billion. Colorado's economic output is 1.7 times (69%) larger than Oregon's.
GDP per capita: Colorado: $93,602 per person vs Oregon: $77,299. Colorado's GDP per capita is 1.2 times (21%) higher than Oregon's.
Average income: Colorado: $83,055 vs Oregon: $70,823 average income per person (per capita personal income). Colorado's average income is 1.2 times (17%) higher than Oregon's.
Colorado vs Oregon Counties
Number of counties: Colorado has 64 counties, while Oregon has 36. Colorado's county count is 1.8 times (78%) higher than Oregon's.
Biggest county by area: Colorado's largest county is Las Animas County at 4,773 square miles; Oregon's is Harney County at 10,134 square miles. Harney County's land area is 2.1 times (112%) larger than Las Animas County's.
Smallest county by area: Colorado: Broomfield County (33 sq mi) vs Oregon: Multnomah County (431 sq mi). Multnomah County's land area is 13.1 times larger than Broomfield County's.
Most populous county: Colorado: El Paso County (752,772 people) vs Oregon: Multnomah County (795,897 people). Multnomah County's population is 1.1 times (6%) larger than El Paso County's.
Least populous county: Colorado: Hinsdale County (747 people) vs Oregon: Wheeler County (1,456 people). Wheeler County's population is 1.9 times (95%) larger than Hinsdale County's.
Richest county: Colorado: Pitkin County ($275,044 per capita income) vs Oregon: Deschutes County ($86,176). Pitkin County's income is 3.2 times (219%) richer than Deschutes County's.
Poorest county: Colorado: Crowley County ($27,232 per capita income) vs Oregon: Malheur County ($42,974). Malheur County's income is 1.6 times (58%) richer than Crowley County's.
Colorado vs Oregon Taxes
State income tax: Colorado has a top income tax rate of 4.4%, while Oregon has a top income tax rate of 9.9%. Oregon's top rate is 5.5 percentage points higher.
Property tax: Colorado: 0.49% effective rate vs Oregon: 0.78% of home value per year. Oregon's rate is 0.29 percentage points higher.
Sales tax: Colorado: 7.89% combined state and average local rate vs Oregon: 0%. Colorado's combined rate is 7.89 percentage points higher.
Official Websites
Colorado official website · Oregon official website
More Size Comparisons
All Colorado 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.