The map above shows Colorado and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Colorado vs Oklahoma Geography
Land area
- Colorado has a land area of 103,637 square miles (268,419 km²), while Oklahoma has 68,597 square miles (177,665 km²).
- Colorado's land area is 1.5 times (51%) larger than Oklahoma's.
Total area
- Colorado: 104,095 square miles (269,605 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water.
- Colorado's total area is 1.5 times (49%) larger than Oklahoma's.
Length
- Colorado is 467 miles (751 km) long from north to south; Oklahoma is 533 miles (857 km).
- Oklahoma's north-south length is 1.1 times (14%) longer than Colorado's.
Width
- Colorado spans 387 miles (622 km) east to west; Oklahoma spans 490 miles (789 km).
- Oklahoma's east-west width is 1.3 times (27%) wider than Colorado's.
Highest point
- Colorado's highest point is Mount Elbert at 14,422 feet (4,396 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m).
- Mount Elbert is 9,442 feet higher than Black Mesa.
Lowest point
- Colorado's lowest point is Arikaree River at 3,326 feet; Oklahoma's is Little River at 289 feet.
- Oklahoma's lowest point is 3,037 feet lower.
Colorado vs Oklahoma Population and History
Population
- Colorado has a population of 5,957,493 (2024), while Oklahoma has 4,095,393 (2024).
- Colorado's population is 1.5 times (45%) larger than Oklahoma's.
Population density
- Colorado: 57.5 people per square mile vs Oklahoma: 59.7.
- Colorado and Oklahoma have about the same population density.
Biggest city
- Colorado's biggest city is Denver with 729,019 people; Oklahoma's is Oklahoma City with 712,919.
- Denver and Oklahoma City have about the same population.
Largest metro area
- Colorado's largest metropolitan area is Denver-Aurora-Centennial, CO metro area (3,052,498 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821).
- Denver-Aurora-Centennial, CO metro area's population is 2.0 times (104%) larger than Oklahoma City, OK metro area's.
History
- Colorado: Admitted to the Union on August 1, 1876, as the 38th state.
- Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state.
- In its current form, Colorado is the older of the two by 31 years.
Colorado vs Oklahoma Economy
GDP
- Colorado's GDP is $557.6 billion (2024) vs Oklahoma's $263.7 billion.
- Colorado's economic output is 2.1 times (111%) larger than Oklahoma's.
GDP per capita
- Colorado: $93,602 per person vs Oklahoma: $64,388.
- Colorado's GDP per capita is 1.5 times (45%) higher than Oklahoma's.
Average income
- Colorado: $83,055 vs Oklahoma: $63,708 average income per person (per capita personal income).
- Colorado's average income is 1.3 times (30%) higher than Oklahoma's.
Colorado vs Oklahoma Counties
Number of counties
- Colorado has 64 counties, while Oklahoma has 77.
- Oklahoma's county count is 1.2 times (20%) higher than Colorado's.
Biggest county by area
- Colorado's largest county is Las Animas County at 4,773 square miles; Oklahoma's is Osage County at 2,247 square miles.
- Las Animas County's land area is 2.1 times (112%) larger than Osage County's.
Smallest county by area
- Colorado: Broomfield County (33 sq mi) vs Oklahoma: Marshall County (372 sq mi).
- Marshall County's land area is 11.3 times larger than Broomfield County's.
Most populous county
- Colorado: El Paso County (752,772 people) vs Oklahoma: Oklahoma County (816,490 people).
- Oklahoma County's population is 1.1 times (8%) larger than El Paso County's.
Least populous county
- Colorado: Hinsdale County (747 people) vs Oklahoma: Cimarron County (2,133 people).
- Cimarron County's population is 2.9 times (186%) larger than Hinsdale County's.
Richest county
- Colorado: Pitkin County ($275,044 per capita income) vs Oklahoma: Washington County ($126,749).
- Pitkin County's income is 2.2 times (117%) richer than Washington County's.
Poorest county
- Colorado: Crowley County ($27,232 per capita income) vs Oklahoma: Atoka County ($38,709).
- Atoka County's income is 1.4 times (42%) richer than Crowley County's.
Colorado vs Oklahoma Taxes
State income tax
- Colorado has a top income tax rate of 4.4%, while Oklahoma has a top income tax rate of 4.5%.
- Oklahoma's top rate is 0.1 percentage points higher.
Property tax
- Colorado: 0.49% effective rate vs Oklahoma: 0.75% of home value per year.
- Oklahoma's rate is 0.26 percentage points higher.
Sales tax
- Colorado: 7.89% combined state and average local rate vs Oklahoma: 9.06%.
- Oklahoma's combined rate is 1.17 percentage points higher.
Official Websites
Colorado official website · Oklahoma official website
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More Size Comparisons
All Colorado size comparisons · All Oklahoma 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.