The map above shows Illinois and Quebec side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Illinois vs Quebec Geography
Land area: Illinois has a land area of 55,513 square miles (143,778 km²), while Quebec has 527,079 square miles (1,365,128 km²). Quebec's land area is 9.5 times (849%) larger than Illinois'.
Total area: Illinois: 57,913 square miles (149,995 km²) vs Quebec: 595,391 square miles (1,542,056 km²), including inland and coastal water. Quebec's total area is 10.3 times larger than Illinois'.
Length: Illinois is 390 miles (628 km) long from north to south; Quebec is 1,221 miles (1,965 km). Quebec's north-south length is 3.1 times (213%) longer than Illinois'.
Width: Illinois spans 283 miles (456 km) east to west; Quebec spans 963 miles (1,550 km). Quebec's east-west width is 3.4 times (240%) wider than Illinois'.
Highest point: Illinois's highest point is Charles Mound at 1,232 feet (376 m); Quebec's is Mont d'Iberville at 5,420 feet (1,652 m). Mont d'Iberville is 4,188 feet higher than Charles Mound.
Lowest point: Illinois's lowest point is Mississippi River at 292 feet; Quebec's is Gulf of St. Lawrence at 0 feet. Quebec's lowest point is 292 feet lower.
Illinois vs Quebec Population and History
Population: Illinois has a population of 12,710,158 (2024), while Quebec has 9,033,887 (2026). Illinois' population is 1.4 times (41%) larger than Quebec's.
Population density: Illinois: 229.0 people per square mile vs Quebec: 17.1. Illinois' population density is 13.4 times higher than Quebec's.
Biggest city: Illinois's biggest city is Chicago with 2,721,308 people; Quebec's is Montreal with 1,762,949. Chicago's population is 1.5 times (54%) larger than Montreal's.
Largest metro area: Illinois's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Quebec's Montreal CMA (4,291,732). Chicago-Naperville-Elgin, IL-IN metro area's population is 2.2 times (119%) larger than Montreal CMA's.
History: Illinois: Admitted to the Union on December 3, 1818, as the 21st state. Quebec: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Illinois is the older of the two by 49 years.
Illinois vs Quebec Economy
GDP: Illinois's GDP is $1,148.1 billion (2024) vs Quebec's $450.3 billion. Illinois' economic output is 2.5 times (155%) larger than Quebec's.
GDP per capita: Illinois: $90,330 per person vs Quebec: $50,059. Illinois' GDP per capita is 1.8 times (80%) higher than Quebec's.
Official Websites
Illinois official website · Quebec official website
More Size Comparisons
All Illinois size comparisons · All Quebec 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.