The map above shows Quebec and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Quebec vs South Australia Geography
Land area: Quebec has a land area of 527,079 square miles (1,365,128 km²), while South Australia has 380,048 square miles (984,321 km²). Quebec's land area is 1.4 times (39%) larger than South Australia's.
Total area: Quebec: 595,391 square miles (1,542,056 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. Quebec's total area is 1.6 times (57%) larger than South Australia's.
Length: Quebec is 1,221 miles (1,965 km) long from north to south; South Australia is 1,078 miles (1,735 km). Quebec's north-south length is 1.1 times (13%) longer than South Australia's.
Width: Quebec spans 963 miles (1,550 km) east to west; South Australia spans 825 miles (1,328 km). Quebec's east-west width is 1.2 times (17%) wider than South Australia's.
Highest point: Quebec's highest point is Mont d'Iberville at 5,420 feet (1,652 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Mont d'Iberville is 712 feet higher than Mount Woodroffe.
Lowest point: Quebec's lowest point is Gulf of St. Lawrence at 0 feet; South Australia's is Lake Eyre at -49 feet. South Australia's lowest point is 49 feet lower.
Quebec vs South Australia Population and History
Population: Quebec has a population of 9,033,887 (2026), while South Australia has 1,908,182 (2025). Quebec's population is 4.7 times (373%) larger than South Australia's.
Population density: Quebec: 17.1 people per square mile vs South Australia: 5.0. Quebec's population density is 3.4 times (242%) higher than South Australia's.
Largest metro area: Quebec's largest metropolitan area is Montreal CMA (4,291,732 people) vs South Australia's Greater Adelaide (1,491,015). Montreal CMA's population is 2.9 times (188%) larger than Greater Adelaide's.
History: Quebec: Joined Confederation on July 1, 1867, as one of the four founding provinces. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, Quebec is the older of the two by 34 years.
Quebec vs South Australia Economy
GDP: Quebec's GDP is $450.3 billion (2024) vs South Australia's $100.2 billion. Quebec's economic output is 4.5 times (349%) larger than South Australia's.
GDP per capita: Quebec: $50,059 per person vs South Australia: $52,511. South Australia's GDP per capita is 1.0 times (5%) higher than Quebec's.
Official Websites
Quebec official website · South Australia official website
More Size Comparisons
All Quebec 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.