The map above shows Colorado and Maine side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Colorado vs Maine Geography
Land area: Colorado has a land area of 103,637 square miles (268,419 km²), while Maine has 30,845 square miles (79,888 km²). Colorado's land area is 3.4 times (236%) larger than Maine's.
Total area: Colorado: 104,095 square miles (269,605 km²) vs Maine: 35,380 square miles (91,634 km²), including inland and coastal water. Colorado's total area is 2.9 times (194%) larger than Maine's.
Length: Colorado is 467 miles (751 km) long from north to south; Maine is 311 miles (501 km). Colorado's north-south length is 1.5 times (50%) longer than Maine's.
Width: Colorado spans 387 miles (622 km) east to west; Maine spans 203 miles (327 km). Colorado's east-west width is 1.9 times (91%) wider than Maine's.
Highest point: Colorado's highest point is Mount Elbert at 14,422 feet (4,396 m); Maine's is Mount Katahdin at 5,253 feet (1,601 m). Mount Elbert is 9,169 feet higher than Mount Katahdin.
Lowest point: Colorado's lowest point is Arikaree River at 3,326 feet; Maine's is Atlantic Ocean at 0 feet. Maine's lowest point is 3,326 feet lower.
Colorado vs Maine Population and History
Population: Colorado has a population of 5,957,493 (2024), while Maine has 1,405,012 (2024). Colorado's population is 4.2 times (324%) larger than Maine's.
Population density: Colorado: 57.5 people per square mile vs Maine: 45.6. Colorado's population density is 1.3 times (26%) higher than Maine's.
Biggest city: Colorado's biggest city is Denver with 729,019 people; Maine's is Portland with 69,568. Denver's population is 10.5 times larger than Portland's.
Largest metro area: Colorado's largest metropolitan area is Denver-Aurora-Centennial, CO metro area (3,052,498 people) vs Maine's Portland-South Portland, ME metro area (571,534). Denver-Aurora-Centennial, CO metro area's population is 5.3 times (434%) larger than Portland-South Portland, ME metro area's.
History: Colorado: Admitted to the Union on August 1, 1876, as the 38th state. Maine: Admitted to the Union on March 15, 1820, as the 23rd state. In its current form, Maine is the older of the two by 56 years.
Colorado vs Maine Economy
GDP: Colorado's GDP is $557.6 billion (2024) vs Maine's $99.2 billion. Colorado's economic output is 5.6 times (462%) larger than Maine's.
GDP per capita: Colorado: $93,602 per person vs Maine: $70,586. Colorado's GDP per capita is 1.3 times (33%) higher than Maine's.
Average income: Colorado: $83,055 vs Maine: $68,932 average income per person (per capita personal income). Colorado's average income is 1.2 times (20%) higher than Maine's.
Colorado vs Maine Counties
Number of counties: Colorado has 64 counties, while Maine has 16. Colorado's county count is 4.0 times (300%) higher than Maine's.
Biggest county by area: Colorado's largest county is Las Animas County at 4,773 square miles; Maine's is Aroostook County at 6,671 square miles. Aroostook County's land area is 1.4 times (40%) larger than Las Animas County's.
Smallest county by area: Colorado: Broomfield County (33 sq mi) vs Maine: Sagadahoc County (254 sq mi). Sagadahoc County's land area is 7.7 times (670%) larger than Broomfield County's.
Most populous county: Colorado: El Paso County (752,772 people) vs Maine: Cumberland County (313,809 people). El Paso County's population is 2.4 times (140%) larger than Cumberland County's.
Least populous county: Colorado: Hinsdale County (747 people) vs Maine: Piscataquis County (17,432 people). Piscataquis County's population is 23.3 times larger than Hinsdale County's.
Richest county: Colorado: Pitkin County ($275,044 per capita income) vs Maine: Cumberland County ($90,142). Pitkin County's income is 3.1 times (205%) richer than Cumberland County's.
Poorest county: Colorado: Crowley County ($27,232 per capita income) vs Maine: Franklin County ($52,725). Franklin County's income is 1.9 times (94%) richer than Crowley County's.
Colorado vs Maine Taxes
State income tax: Colorado has a top income tax rate of 4.4%, while Maine has a top income tax rate of 7.15%. Maine's top rate is 2.75 percentage points higher.
Property tax: Colorado: 0.49% effective rate vs Maine: 0.91% of home value per year. Maine's rate is 0.42 percentage points higher.
Sales tax: Colorado: 7.89% combined state and average local rate vs Maine: 5.5%. Colorado's combined rate is 2.39 percentage points higher.
Official Websites
Colorado official website · Maine official website
More Size Comparisons
All Colorado size comparisons · All Maine 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.