The map above shows British Columbia and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
British Columbia vs Ontario Geography
Land area: British Columbia has a land area of 357,216 square miles (925,186 km²), while Ontario has 354,342 square miles (917,741 km²). British Columbia and Ontario have about the same land area.
Total area: British Columbia: 364,764 square miles (944,735 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 1.1 times (14%) larger than British Columbia's.
Length: British Columbia is 1,017 miles (1,637 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 1.1 times (7%) longer than British Columbia's.
Width: British Columbia spans 1,245 miles (2,003 km) east to west; Ontario spans 1,013 miles (1,630 km). British Columbia's east-west width is 1.2 times (23%) wider than Ontario's.
Highest point: British Columbia's highest point is Mount Fairweather at 15,299 feet (4,663 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Mount Fairweather is 13,025 feet higher than Ishpatina Ridge.
Lowest point: British Columbia's lowest point is Pacific Ocean at 0 feet; Ontario's is Hudson Bay at 0 feet. Both lowest points are at or near sea level.
British Columbia vs Ontario Population and History
Population: British Columbia has a population of 5,658,528 (2026), while Ontario has 16,136,480 (2026). Ontario's population is 2.9 times (185%) larger than British Columbia's.
Population density: British Columbia: 15.8 people per square mile vs Ontario: 45.5. Ontario's population density is 2.9 times (188%) higher than British Columbia's.
Biggest city: British Columbia's biggest city is Vancouver with 662,248 people; Ontario's is Toronto with 2,794,356. Toronto's population is 4.2 times (322%) larger than Vancouver's.
Largest metro area: British Columbia's largest metropolitan area is Vancouver CMA (2,642,825 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 2.3 times (135%) larger than Vancouver CMA's.
History: British Columbia: Joined Confederation on July 20, 1871. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Ontario is the older of the two by 4 years.
British Columbia vs Ontario Economy
GDP: British Columbia's GDP is $313.3 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 2.8 times (179%) larger than British Columbia's.
GDP per capita: British Columbia: $55,241 per person vs Ontario: $54,132. British Columbia and Ontario have about the same GDP per capita.
Official Websites
British Columbia official website · Ontario official website
More Size Comparisons
All British Columbia size comparisons · All Ontario 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.