The map above shows Idaho and British Columbia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Idaho vs British Columbia Geography
Land area: Idaho has a land area of 82,645 square miles (214,051 km²), while British Columbia has 357,216 square miles (925,186 km²). British Columbia's land area is 4.3 times (332%) larger than Idaho's.
Total area: Idaho: 83,569 square miles (216,441 km²) vs British Columbia: 364,764 square miles (944,735 km²), including inland and coastal water. British Columbia's total area is 4.4 times (336%) larger than Idaho's.
Length: Idaho is 483 miles (778 km) long from north to south; British Columbia is 1,017 miles (1,637 km). British Columbia's north-south length is 2.1 times (111%) longer than Idaho's.
Width: Idaho spans 352 miles (566 km) east to west; British Columbia spans 1,245 miles (2,003 km). British Columbia's east-west width is 3.5 times (254%) wider than Idaho's.
Highest point: Idaho's highest point is Borah Peak at 12,631 feet (3,850 m); British Columbia's is Mount Fairweather at 15,299 feet (4,663 m). Mount Fairweather is 2,668 feet higher than Borah Peak.
Lowest point: Idaho's lowest point is Snake River at 718 feet; British Columbia's is Pacific Ocean at 0 feet. British Columbia's lowest point is 718 feet lower.
Idaho vs British Columbia Population and History
Population: Idaho has a population of 2,001,619 (2024), while British Columbia has 5,658,528 (2026). British Columbia's population is 2.8 times (183%) larger than Idaho's.
Population density: Idaho: 24.2 people per square mile vs British Columbia: 15.8. Idaho's population density is 1.5 times (53%) higher than British Columbia's.
Biggest city: Idaho's biggest city is Boise with 237,963 people; British Columbia's is Vancouver with 662,248. Vancouver's population is 2.8 times (178%) larger than Boise's.
Largest metro area: Idaho's largest metropolitan area is Boise City, ID metro area (845,877 people) vs British Columbia's Vancouver CMA (2,642,825). Vancouver CMA's population is 3.1 times (212%) larger than Boise City, ID metro area's.
History: Idaho: Admitted to the Union on July 3, 1890, as the 43rd state. British Columbia: Joined Confederation on July 20, 1871. In its current form, British Columbia is the older of the two by 19 years.
Idaho vs British Columbia Economy
GDP: Idaho's GDP is $129.0 billion (2024) vs British Columbia's $313.3 billion. British Columbia's economic output is 2.4 times (143%) larger than Idaho's.
GDP per capita: Idaho: $64,457 per person vs British Columbia: $55,241. Idaho's GDP per capita is 1.2 times (17%) higher than British Columbia's.
Official Websites
Idaho official website · British Columbia official website
More Size Comparisons
All Idaho size comparisons · All British 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.