The map above shows Colorado and District of Columbia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Colorado vs District of Columbia Geography
Land area: Colorado has a land area of 103,637 square miles (268,419 km²), while District of Columbia has 61 square miles (158 km²). Colorado's land area is 1,698.9 times larger than District of Columbia's.
Total area: Colorado: 104,095 square miles (269,605 km²) vs District of Columbia: 68 square miles (177 km²), including inland and coastal water. Colorado's total area is 1,523.2 times larger than District of Columbia's.
Length: Colorado is 467 miles (751 km) long from north to south; District of Columbia is 13 miles (22 km). Colorado's north-south length is 35.9 times longer than District of Columbia's.
Width: Colorado spans 387 miles (622 km) east to west; District of Columbia spans 12 miles (19 km). Colorado's east-west width is 32.3 times wider than District of Columbia's.
Highest point: Colorado's highest point is Mount Elbert at 14,422 feet (4,396 m); District of Columbia's is Fort Reno at 429 feet (131 m). Mount Elbert is 13,993 feet higher than Fort Reno.
Lowest point: Colorado's lowest point is Arikaree River at 3,326 feet; District of Columbia's is Potomac River at 0 feet. District of Columbia's lowest point is 3,326 feet lower.
Colorado vs District of Columbia Population and History
Population: Colorado has a population of 5,957,493 (2024), while District of Columbia has 702,250 (2024). Colorado's population is 8.5 times (748%) larger than District of Columbia's.
Population density: Colorado: 57.5 people per square mile vs District of Columbia: 11,493.5. District of Columbia's population density is 199.9 times higher than Colorado's.
Biggest city: Colorado's biggest city is Denver with 729,019 people; District of Columbia's is Washington with 702,250. Denver and Washington 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 District of Columbia's Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489). Washington-Arlington-Alexandria, DC-VA-MD-WV metro area's population is 2.1 times (111%) larger than Denver-Aurora-Centennial, CO metro area's.
History: Colorado: Admitted to the Union on August 1, 1876, as the 38th state. District of Columbia: The federal district, established by the Residence Act on July 16, 1790; not a state. In its current form, District of Columbia is the older of the two by 86 years.
Colorado vs District of Columbia Economy
GDP: Colorado's GDP is $557.6 billion (2024) vs District of Columbia's $184.3 billion. Colorado's economic output is 3.0 times (203%) larger than District of Columbia's.
GDP per capita: Colorado: $93,602 per person vs District of Columbia: $262,439. District of Columbia's GDP per capita is 2.8 times (180%) higher than Colorado's.
Average income: Colorado: $83,055 vs District of Columbia: $111,185 average income per person (per capita personal income). District of Columbia's average income is 1.3 times (34%) higher than Colorado's.
Colorado vs District of Columbia Counties
Number of counties: Colorado has 64 counties, while District of Columbia has 1. Colorado's county count is 64.0 times higher than District of Columbia's.
Biggest county by area: Colorado's largest county is Las Animas County at 4,773 square miles; District of Columbia's is District of Columbia at 61 square miles. Las Animas County's land area is 78.1 times larger than District of Columbia's.
Smallest county by area: Colorado: Broomfield County (33 sq mi) vs District of Columbia: District of Columbia (61 sq mi). District of Columbia's land area is 1.9 times (85%) larger than Broomfield County's.
Most populous county: Colorado: El Paso County (752,772 people) vs District of Columbia: District of Columbia (702,250 people). El Paso County's population is 1.1 times (7%) larger than District of Columbia's.
Least populous county: Colorado: Hinsdale County (747 people) vs District of Columbia: District of Columbia (702,250 people). District of Columbia's population is 940.1 times larger than Hinsdale County's.
Richest county: Colorado: Pitkin County ($275,044 per capita income) vs District of Columbia: District of Columbia ($111,185). Pitkin County's income is 2.5 times (147%) richer than District of Columbia's.
Poorest county: Colorado: Crowley County ($27,232 per capita income) vs District of Columbia: District of Columbia ($111,185). District of Columbia's income is 4.1 times (308%) richer than Crowley County's.
Colorado vs District of Columbia Taxes
State income tax: Colorado has a top income tax rate of 4.4%, while District of Columbia has a top income tax rate of 10.75%. District of Columbia's top rate is 6.35 percentage points higher.
Property tax: Colorado: 0.49% effective rate vs District of Columbia: 0.63% of home value per year. District of Columbia's rate is 0.14 percentage points higher.
Sales tax: Colorado: 7.89% combined state and average local rate vs District of Columbia: 6%. Colorado's combined rate is 1.89 percentage points higher.
Official Websites
Colorado official website · District of Columbia official website
More Size Comparisons
All Colorado size comparisons · All District of Columbia 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.