The map above shows British Columbia and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
British Columbia vs South Australia Geography
Land area: British Columbia has a land area of 357,216 square miles (925,186 km²), while South Australia has 380,048 square miles (984,321 km²). South Australia's land area is 1.1 times (6%) larger than British Columbia's.
Total area: British Columbia: 364,764 square miles (944,735 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. British Columbia and South Australia have about the same total area.
Length: British Columbia is 1,017 miles (1,637 km) long from north to south; South Australia is 1,078 miles (1,735 km). South Australia's north-south length is 1.1 times (6%) longer than British Columbia's.
Width: British Columbia spans 1,245 miles (2,003 km) east to west; South Australia spans 825 miles (1,328 km). British Columbia's east-west width is 1.5 times (51%) wider than South Australia's.
Highest point: British Columbia's highest point is Mount Fairweather at 15,299 feet (4,663 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Mount Fairweather is 10,591 feet higher than Mount Woodroffe.
Lowest point: British Columbia's lowest point is Pacific Ocean at 0 feet; South Australia's is Lake Eyre at -49 feet. South Australia's lowest point is 49 feet lower.
British Columbia vs South Australia Population and History
Population: British Columbia has a population of 5,658,528 (2026), while South Australia has 1,908,182 (2025). British Columbia's population is 3.0 times (197%) larger than South Australia's.
Population density: British Columbia: 15.8 people per square mile vs South Australia: 5.0. British Columbia's population density is 3.2 times (216%) higher than South Australia's.
Largest metro area: British Columbia's largest metropolitan area is Vancouver CMA (2,642,825 people) vs South Australia's Greater Adelaide (1,491,015). Vancouver CMA's population is 1.8 times (77%) larger than Greater Adelaide's.
History: British Columbia: Joined Confederation on July 20, 1871. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, British Columbia is the older of the two by 30 years.
British Columbia vs South Australia Economy
GDP: British Columbia's GDP is $313.3 billion (2024) vs South Australia's $100.2 billion. British Columbia's economic output is 3.1 times (213%) larger than South Australia's.
GDP per capita: British Columbia: $55,241 per person vs South Australia: $52,511. British Columbia's GDP per capita is 1.1 times (5%) higher than South Australia's.
Official Websites
British Columbia official website · South Australia official website
More Size Comparisons
All British Columbia size comparisons · All South Australia 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.