The map above shows Illinois and Prince Edward Island side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Illinois vs Prince Edward Island Geography
Land area: Illinois has a land area of 55,513 square miles (143,778 km²), while Prince Edward Island has 2,185 square miles (5,660 km²). Illinois' land area is 25.4 times larger than Prince Edward Island's.
Total area: Illinois: 57,913 square miles (149,995 km²) vs Prince Edward Island: 2,185 square miles (5,660 km²), including inland and coastal water. Illinois' total area is 26.5 times larger than Prince Edward Island's.
Length: Illinois is 390 miles (628 km) long from north to south; Prince Edward Island is 97 miles (157 km). Illinois' north-south length is 4.0 times (302%) longer than Prince Edward Island's.
Width: Illinois spans 283 miles (456 km) east to west; Prince Edward Island spans 117 miles (188 km). Illinois' east-west width is 2.4 times (142%) wider than Prince Edward Island's.
Highest point: Illinois's highest point is Charles Mound at 1,232 feet (376 m); Prince Edward Island's is Springton at 466 feet (142 m). Charles Mound is 766 feet higher than Springton.
Lowest point: Illinois's lowest point is Mississippi River at 292 feet; Prince Edward Island's is Gulf of St. Lawrence at 0 feet. Prince Edward Island's lowest point is 292 feet lower.
Illinois vs Prince Edward Island Population and History
Population: Illinois has a population of 12,710,158 (2024), while Prince Edward Island has 182,001 (2026). Illinois' population is 69.8 times larger than Prince Edward Island's.
Population density: Illinois: 229.0 people per square mile vs Prince Edward Island: 83.3. Illinois' population density is 2.7 times (175%) higher than Prince Edward Island's.
Biggest city: Illinois's biggest city is Chicago with 2,721,308 people; Prince Edward Island's is Charlottetown with 38,809. Chicago's population is 70.1 times larger than Charlottetown's.
Largest metro area: Illinois's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Prince Edward Island's Charlottetown CMA (78,858). Chicago-Naperville-Elgin, IL-IN metro area's population is 119.3 times larger than Charlottetown CMA's.
History: Illinois: Admitted to the Union on December 3, 1818, as the 21st state. Prince Edward Island: Joined Confederation on July 1, 1873. In its current form, Illinois is the older of the two by 55 years.
Illinois vs Prince Edward Island Economy
GDP: Illinois's GDP is $1,148.1 billion (2024) vs Prince Edward Island's $8.0 billion. Illinois' economic output is 143.5 times larger than Prince Edward Island's.
GDP per capita: Illinois: $90,330 per person vs Prince Edward Island: $44,238. Illinois' GDP per capita is 2.0 times (104%) higher than Prince Edward Island's.
Official Websites
Illinois official website · Prince Edward Island official website
More Size Comparisons
All Illinois size comparisons · All Prince Edward Island 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.