The map above shows South Carolina and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
South Carolina vs Ontario Geography
Land area: South Carolina has a land area of 30,064 square miles (77,866 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 11.8 times larger than South Carolina's.
Total area: South Carolina: 32,024 square miles (82,940 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 13.0 times larger than South Carolina's.
Length: South Carolina is 236 miles (380 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 4.6 times (360%) longer than South Carolina's.
Width: South Carolina spans 279 miles (449 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 3.6 times (263%) wider than South Carolina's.
Highest point: South Carolina's highest point is Sassafras Mountain at 3,497 feet (1,066 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Sassafras Mountain is 1,223 feet higher than Ishpatina Ridge.
Lowest point: South Carolina's lowest point is Atlantic Ocean at 0 feet; Ontario's is Hudson Bay at 0 feet. Both lowest points are at or near sea level.
South Carolina vs Ontario Population and History
Population: South Carolina has a population of 5,478,831 (2024), while Ontario has 16,136,480 (2026). Ontario's population is 2.9 times (195%) larger than South Carolina's.
Population density: South Carolina: 182.2 people per square mile vs Ontario: 45.5. South Carolina's population density is 4.0 times (300%) higher than Ontario's.
Biggest city: South Carolina's biggest city is Charleston with 157,665 people; Ontario's is Toronto with 2,794,356. Toronto's population is 17.7 times larger than Charleston's.
Largest metro area: South Carolina's largest metropolitan area is Charlotte-Concord-Gastonia, NC-SC metro area (2,883,370 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 2.2 times (115%) larger than Charlotte-Concord-Gastonia, NC-SC metro area's.
History: South Carolina: Admitted to the Union on May 23, 1788, as the 8th state. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, South Carolina is the older of the two by 79 years.
South Carolina vs Ontario Economy
GDP: South Carolina's GDP is $357.1 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 2.4 times (145%) larger than South Carolina's.
GDP per capita: South Carolina: $65,173 per person vs Ontario: $54,132. South Carolina's GDP per capita is 1.2 times (20%) higher than Ontario's.
Official Websites
South Carolina official website · Ontario official website
More Size Comparisons
All South Carolina 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.