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Colorado vs Idaho Size Comparison Map

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COLORADO VS IDAHOOverlaid at the same scaleColorado104,095 sq mi (269,605 km²)Idaho83,569 sq mi (216,441 km²)Colorado is 1.2 times (25%) larger than Idaho. brilliantmaps.com

The map above shows Colorado and Idaho side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.

Colorado vs Idaho Geography

Land area

  • Colorado has a land area of 103,637 square miles (268,419 km²), while Idaho has 82,645 square miles (214,051 km²).
  • Colorado's land area is 1.3 times (25%) larger than Idaho's.

Total area

  • Colorado: 104,095 square miles (269,605 km²) vs Idaho: 83,569 square miles (216,441 km²), including inland and coastal water.
  • Colorado's total area is 1.2 times (25%) larger than Idaho's.

Length

  • Colorado is 467 miles (751 km) long from north to south; Idaho is 483 miles (778 km).
  • Colorado and Idaho have about the same north-south length.

Width

  • Colorado spans 387 miles (622 km) east to west; Idaho spans 352 miles (566 km).
  • Colorado's east-west width is 1.1 times (10%) wider than Idaho's.

Highest point

  • Colorado's highest point is Mount Elbert at 14,422 feet (4,396 m); Idaho's is Borah Peak at 12,631 feet (3,850 m).
  • Mount Elbert is 1,791 feet higher than Borah Peak.

Lowest point

  • Colorado's lowest point is Arikaree River at 3,326 feet; Idaho's is Snake River at 718 feet.
  • Idaho's lowest point is 2,608 feet lower.

Colorado vs Idaho Population and History

Population

  • Colorado has a population of 5,957,493 (2024), while Idaho has 2,001,619 (2024).
  • Colorado's population is 3.0 times (198%) larger than Idaho's.

Population density

  • Colorado: 57.5 people per square mile vs Idaho: 24.2.
  • Colorado's population density is 2.4 times (138%) higher than Idaho's.

Biggest city

  • Colorado's biggest city is Denver with 729,019 people; Idaho's is Boise with 237,963.
  • Denver's population is 3.1 times (206%) larger than Boise's.

Largest metro area

  • Colorado's largest metropolitan area is Denver-Aurora-Centennial, CO metro area (3,052,498 people) vs Idaho's Boise City, ID metro area (845,877).
  • Denver-Aurora-Centennial, CO metro area's population is 3.6 times (261%) larger than Boise City, ID metro area's.

History

  • Colorado: Admitted to the Union on August 1, 1876, as the 38th state.
  • Idaho: Admitted to the Union on July 3, 1890, as the 43rd state.
  • In its current form, Colorado is the older of the two by 14 years.

Colorado vs Idaho Economy

GDP

  • Colorado's GDP is $557.6 billion (2024) vs Idaho's $129.0 billion.
  • Colorado's economic output is 4.3 times (332%) larger than Idaho's.

GDP per capita

  • Colorado: $93,602 per person vs Idaho: $64,457.
  • Colorado's GDP per capita is 1.5 times (45%) higher than Idaho's.

Average income

  • Colorado: $83,055 vs Idaho: $62,323 average income per person (per capita personal income).
  • Colorado's average income is 1.3 times (33%) higher than Idaho's.

Colorado vs Idaho Counties

Number of counties

  • Colorado has 64 counties, while Idaho has 44.
  • Colorado's county count is 1.5 times (45%) higher than Idaho's.

Biggest county by area

  • Colorado's largest county is Las Animas County at 4,773 square miles; Idaho's is Idaho County at 8,478 square miles.
  • Idaho County's land area is 1.8 times (78%) larger than Las Animas County's.

Smallest county by area

  • Colorado: Broomfield County (33 sq mi) vs Idaho: Payette County (407 sq mi).
  • Payette County's land area is 12.3 times larger than Broomfield County's.

Most populous county

  • Colorado: El Paso County (752,772 people) vs Idaho: Ada County (535,799 people).
  • El Paso County's population is 1.4 times (40%) larger than Ada County's.

Least populous county

  • Colorado: Hinsdale County (747 people) vs Idaho: Clark County (794 people).
  • Clark County's population is 1.1 times (6%) larger than Hinsdale County's.

Richest county

  • Colorado: Pitkin County ($275,044 per capita income) vs Idaho: Blaine County ($202,612).
  • Pitkin County's income is 1.4 times (36%) richer than Blaine County's.

Poorest county

  • Colorado: Crowley County ($27,232 per capita income) vs Idaho: Madison County ($29,485).
  • Madison County's income is 1.1 times (8%) richer than Crowley County's.

Colorado vs Idaho Taxes

State income tax

  • Colorado has a top income tax rate of 4.4%, while Idaho has a top income tax rate of 5.3%.
  • Idaho's top rate is 0.9 percentage points higher.

Property tax

  • Colorado: 0.49% effective rate vs Idaho: 0.43% of home value per year.
  • Colorado's rate is 0.06 percentage points higher.

Sales tax

  • Colorado: 7.89% combined state and average local rate vs Idaho: 6.03%.
  • Colorado's combined rate is 1.86 percentage points higher.

Official Websites

Colorado official website · Idaho official website

Download the Colorado vs Idaho Size Comparison Map for free

Colorado vs Idaho Size Comparison Map

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More Size Comparisons

All Colorado size comparisons · All Idaho 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.