The map above shows Colorado and Ohio side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Colorado vs Ohio Geography
Land area: Colorado has a land area of 103,637 square miles (268,419 km²), while Ohio has 40,859 square miles (105,824 km²). Colorado's land area is 2.5 times (154%) larger than Ohio's.
Total area: Colorado: 104,095 square miles (269,605 km²) vs Ohio: 44,826 square miles (116,098 km²), including inland and coastal water. Colorado's total area is 2.3 times (132%) larger than Ohio's.
Length: Colorado is 467 miles (751 km) long from north to south; Ohio is 291 miles (468 km). Colorado's north-south length is 1.6 times (60%) longer than Ohio's.
Width: Colorado spans 387 miles (622 km) east to west; Ohio spans 317 miles (510 km). Colorado's east-west width is 1.2 times (22%) wider than Ohio's.
Highest point: Colorado's highest point is Mount Elbert at 14,422 feet (4,396 m); Ohio's is Campbell Hill at 1,547 feet (472 m). Mount Elbert is 12,875 feet higher than Campbell Hill.
Lowest point: Colorado's lowest point is Arikaree River at 3,326 feet; Ohio's is Ohio River at 455 feet. Ohio's lowest point is 2,871 feet lower.
Colorado vs Ohio Population and History
Population: Colorado has a population of 5,957,493 (2024), while Ohio has 11,883,304 (2024). Ohio's population is 2.0 times (99%) larger than Colorado's.
Population density: Colorado: 57.5 people per square mile vs Ohio: 290.8. Ohio's population density is 5.1 times (406%) higher than Colorado's.
Biggest city: Colorado's biggest city is Denver with 729,019 people; Ohio's is Columbus with 933,263. Columbus' population is 1.3 times (28%) larger than Denver's.
Largest metro area: Colorado's largest metropolitan area is Denver-Aurora-Centennial, CO metro area (3,052,498 people) vs Ohio's Cincinnati, OH-KY-IN metro area (2,302,815). Denver-Aurora-Centennial, CO metro area's population is 1.3 times (33%) larger than Cincinnati, OH-KY-IN metro area's.
History: Colorado: Admitted to the Union on August 1, 1876, as the 38th state. Ohio: Admitted to the Union on March 1, 1803, as the 17th state. In its current form, Ohio is the older of the two by 73 years.
Colorado vs Ohio Economy
GDP: Colorado's GDP is $557.6 billion (2024) vs Ohio's $923.1 billion. Ohio's economic output is 1.7 times (66%) larger than Colorado's.
GDP per capita: Colorado: $93,602 per person vs Ohio: $77,684. Colorado's GDP per capita is 1.2 times (20%) higher than Ohio's.
Average income: Colorado: $83,055 vs Ohio: $64,464 average income per person (per capita personal income). Colorado's average income is 1.3 times (29%) higher than Ohio's.
Colorado vs Ohio Counties
Number of counties: Colorado has 64 counties, while Ohio has 88. Ohio's county count is 1.4 times (38%) higher than Colorado's.
Biggest county by area: Colorado's largest county is Las Animas County at 4,773 square miles; Ohio's is Ashtabula County at 702 square miles. Las Animas County's land area is 6.8 times (580%) larger than Ashtabula County's.
Smallest county by area: Colorado: Broomfield County (33 sq mi) vs Ohio: Lake County (229 sq mi). Lake County's land area is 7.0 times (595%) larger than Broomfield County's.
Most populous county: Colorado: El Paso County (752,772 people) vs Ohio: Franklin County (1,356,303 people). Franklin County's population is 1.8 times (80%) larger than El Paso County's.
Least populous county: Colorado: Hinsdale County (747 people) vs Ohio: Vinton County (12,545 people). Vinton County's population is 16.8 times larger than Hinsdale County's.
Richest county: Colorado: Pitkin County ($275,044 per capita income) vs Ohio: Delaware County ($96,573). Pitkin County's income is 2.8 times (185%) richer than Delaware County's.
Poorest county: Colorado: Crowley County ($27,232 per capita income) vs Ohio: Noble County ($34,940). Noble County's income is 1.3 times (28%) richer than Crowley County's.
Colorado vs Ohio Taxes
State income tax: Colorado has a top income tax rate of 4.4%, while Ohio has a top income tax rate of 2.75%. Colorado's top rate is 1.65 percentage points higher.
Property tax: Colorado: 0.49% effective rate vs Ohio: 1.22% of home value per year. Ohio's rate is 0.73 percentage points higher.
Sales tax: Colorado: 7.89% combined state and average local rate vs Ohio: 7.29%. Colorado's combined rate is 0.6 percentage points higher.
Official Websites
Colorado official website · Ohio official website
More Size Comparisons
All Colorado size comparisons · All Ohio 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.