The map above shows Montana and British Columbia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Montana vs British Columbia Geography
Land area: Montana has a land area of 145,550 square miles (376,973 km²), while British Columbia has 357,216 square miles (925,186 km²). British Columbia's land area is 2.5 times (145%) larger than Montana's.
Total area: Montana: 147,043 square miles (380,840 km²) vs British Columbia: 364,764 square miles (944,735 km²), including inland and coastal water. British Columbia's total area is 2.5 times (148%) larger than Montana's.
Length: Montana is 319 miles (514 km) long from north to south; British Columbia is 1,017 miles (1,637 km). British Columbia's north-south length is 3.2 times (219%) longer than Montana's.
Width: Montana spans 607 miles (976 km) east to west; British Columbia spans 1,245 miles (2,003 km). British Columbia's east-west width is 2.1 times (105%) wider than Montana's.
Highest point: Montana's highest point is Granite Peak at 12,767 feet (3,891 m); British Columbia's is Mount Fairweather at 15,299 feet (4,663 m). Mount Fairweather is 2,532 feet higher than Granite Peak.
Lowest point: Montana's lowest point is Kootenai River at 1,805 feet; British Columbia's is Pacific Ocean at 0 feet. British Columbia's lowest point is 1,805 feet lower.
Montana vs British Columbia Population and History
Population: Montana has a population of 1,137,233 (2024), while British Columbia has 5,658,528 (2026). British Columbia's population is 5.0 times (398%) larger than Montana's.
Population density: Montana: 7.8 people per square mile vs British Columbia: 15.8. British Columbia's population density is 2.0 times (103%) higher than Montana's.
Biggest city: Montana's biggest city is Billings with 121,483 people; British Columbia's is Vancouver with 662,248. Vancouver's population is 5.5 times (445%) larger than Billings'.
Largest metro area: Montana's largest metropolitan area is Billings, MT metro area (192,531 people) vs British Columbia's Vancouver CMA (2,642,825). Vancouver CMA's population is 13.7 times larger than Billings, MT metro area's.
History: Montana: Admitted to the Union on November 8, 1889, as the 41st state. British Columbia: Joined Confederation on July 20, 1871. In its current form, British Columbia is the older of the two by 18 years.
Montana vs British Columbia Economy
GDP: Montana's GDP is $78.4 billion (2024) vs British Columbia's $313.3 billion. British Columbia's economic output is 4.0 times (300%) larger than Montana's.
GDP per capita: Montana: $68,975 per person vs British Columbia: $55,241. Montana's GDP per capita is 1.2 times (25%) higher than British Columbia's.
Official Websites
Montana official website · British Columbia official website
More Size Comparisons
All Montana 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.