The map above shows Colorado and Wisconsin side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Colorado vs Wisconsin Geography
Land area: Colorado has a land area of 103,637 square miles (268,419 km²), while Wisconsin has 54,168 square miles (140,294 km²). Colorado's land area is 1.9 times (91%) larger than Wisconsin's.
Total area: Colorado: 104,095 square miles (269,605 km²) vs Wisconsin: 65,497 square miles (169,636 km²), including inland and coastal water. Colorado's total area is 1.6 times (59%) larger than Wisconsin's.
Length: Colorado is 467 miles (751 km) long from north to south; Wisconsin is 368 miles (593 km). Colorado's north-south length is 1.3 times (27%) longer than Wisconsin's.
Width: Colorado spans 387 miles (622 km) east to west; Wisconsin spans 323 miles (521 km). Colorado's east-west width is 1.2 times (20%) wider than Wisconsin's.
Highest point: Colorado's highest point is Mount Elbert at 14,422 feet (4,396 m); Wisconsin's is Timms Hill at 1,946 feet (593 m). Mount Elbert is 12,476 feet higher than Timms Hill.
Lowest point: Colorado's lowest point is Arikaree River at 3,326 feet; Wisconsin's is Lake Michigan at 577 feet. Wisconsin's lowest point is 2,749 feet lower.
Colorado vs Wisconsin Population and History
Population: Colorado has a population of 5,957,493 (2024), while Wisconsin has 5,960,975 (2024). Colorado and Wisconsin have about the same population.
Population density: Colorado: 57.5 people per square mile vs Wisconsin: 110.0. Wisconsin's population density is 1.9 times (91%) higher than Colorado's.
Biggest city: Colorado's biggest city is Denver with 729,019 people; Wisconsin's is Milwaukee with 563,531. Denver's population is 1.3 times (29%) larger than Milwaukee's.
Largest metro area: Colorado's largest metropolitan area is Denver-Aurora-Centennial, CO metro area (3,052,498 people) vs Wisconsin's Minneapolis-St. Paul-Bloomington, MN-WI metro area (3,757,952). Minneapolis-St. Paul-Bloomington, MN-WI metro area's population is 1.2 times (23%) larger than Denver-Aurora-Centennial, CO metro area's.
History: Colorado: Admitted to the Union on August 1, 1876, as the 38th state. Wisconsin: Admitted to the Union on May 29, 1848, as the 30th state. In its current form, Wisconsin is the older of the two by 28 years.
Colorado vs Wisconsin Economy
GDP: Colorado's GDP is $557.6 billion (2024) vs Wisconsin's $453.3 billion. Colorado's economic output is 1.2 times (23%) larger than Wisconsin's.
GDP per capita: Colorado: $93,602 per person vs Wisconsin: $76,044. Colorado's GDP per capita is 1.2 times (23%) higher than Wisconsin's.
Average income: Colorado: $83,055 vs Wisconsin: $67,755 average income per person (per capita personal income). Colorado's average income is 1.2 times (23%) higher than Wisconsin's.
Colorado vs Wisconsin Counties
Number of counties: Colorado has 64 counties, while Wisconsin has 72. Wisconsin's county count is 1.1 times (13%) higher than Colorado's.
Biggest county by area: Colorado's largest county is Las Animas County at 4,773 square miles; Wisconsin's is Marathon County at 1,545 square miles. Las Animas County's land area is 3.1 times (209%) larger than Marathon County's.
Smallest county by area: Colorado: Broomfield County (33 sq mi) vs Wisconsin: Pepin County (232 sq mi). Pepin County's land area is 7.0 times (603%) larger than Broomfield County's.
Most populous county: Colorado: El Paso County (752,772 people) vs Wisconsin: Milwaukee County (924,740 people). Milwaukee County's population is 1.2 times (23%) larger than El Paso County's.
Least populous county: Colorado: Hinsdale County (747 people) vs Wisconsin: Menominee County (4,286 people). Menominee County's population is 5.7 times (474%) larger than Hinsdale County's.
Richest county: Colorado: Pitkin County ($275,044 per capita income) vs Wisconsin: Ozaukee County ($109,947). Pitkin County's income is 2.5 times (150%) richer than Ozaukee County's.
Poorest county: Colorado: Crowley County ($27,232 per capita income) vs Wisconsin: Menominee County ($43,696). Menominee County's income is 1.6 times (60%) richer than Crowley County's.
Colorado vs Wisconsin Taxes
State income tax: Colorado has a top income tax rate of 4.4%, while Wisconsin has a top income tax rate of 7.65%. Wisconsin's top rate is 3.25 percentage points higher.
Property tax: Colorado: 0.49% effective rate vs Wisconsin: 1.25% of home value per year. Wisconsin's rate is 0.76 percentage points higher.
Sales tax: Colorado: 7.89% combined state and average local rate vs Wisconsin: 5.72%. Colorado's combined rate is 2.17 percentage points higher.
Official Websites
Colorado official website · Wisconsin official website
More Size Comparisons
All Colorado size comparisons · All Wisconsin 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.