The map above shows Ohio and South Carolina side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ohio vs South Carolina Geography
Land area: Ohio has a land area of 40,859 square miles (105,824 km²), while South Carolina has 30,064 square miles (77,866 km²). Ohio's land area is 1.4 times (36%) larger than South Carolina's.
Total area: Ohio: 44,826 square miles (116,098 km²) vs South Carolina: 32,024 square miles (82,940 km²), including inland and coastal water. Ohio's total area is 1.4 times (40%) larger than South Carolina's.
Length: Ohio is 291 miles (468 km) long from north to south; South Carolina is 236 miles (380 km). Ohio's north-south length is 1.2 times (23%) longer than South Carolina's.
Width: Ohio spans 317 miles (510 km) east to west; South Carolina spans 279 miles (449 km). Ohio's east-west width is 1.1 times (14%) wider than South Carolina's.
Highest point: Ohio's highest point is Campbell Hill at 1,547 feet (472 m); South Carolina's is Sassafras Mountain at 3,497 feet (1,066 m). Sassafras Mountain is 1,950 feet higher than Campbell Hill.
Lowest point: Ohio's lowest point is Ohio River at 455 feet; South Carolina's is Atlantic Ocean at 0 feet. South Carolina's lowest point is 455 feet lower.
Ohio vs South Carolina Population and History
Population: Ohio has a population of 11,883,304 (2024), while South Carolina has 5,478,831 (2024). Ohio's population is 2.2 times (117%) larger than South Carolina's.
Population density: Ohio: 290.8 people per square mile vs South Carolina: 182.2. Ohio's population density is 1.6 times (60%) higher than South Carolina's.
Biggest city: Ohio's biggest city is Columbus with 933,263 people; South Carolina's is Charleston with 157,665. Columbus' population is 5.9 times (492%) larger than Charleston's.
Largest metro area: Ohio's largest metropolitan area is Cincinnati, OH-KY-IN metro area (2,302,815 people) vs South Carolina's Charlotte-Concord-Gastonia, NC-SC metro area (2,883,370). Charlotte-Concord-Gastonia, NC-SC metro area's population is 1.3 times (25%) larger than Cincinnati, OH-KY-IN metro area's.
History: Ohio: Admitted to the Union on March 1, 1803, as the 17th state. South Carolina: Admitted to the Union on May 23, 1788, as the 8th state. In its current form, South Carolina is the older of the two by 15 years.
Ohio vs South Carolina Economy
GDP: Ohio's GDP is $923.1 billion (2024) vs South Carolina's $357.1 billion. Ohio's economic output is 2.6 times (158%) larger than South Carolina's.
GDP per capita: Ohio: $77,684 per person vs South Carolina: $65,173. Ohio's GDP per capita is 1.2 times (19%) higher than South Carolina's.
Average income: Ohio: $64,464 vs South Carolina: $60,776 average income per person (per capita personal income). Ohio's average income is 1.1 times (6%) higher than South Carolina's.
Ohio vs South Carolina Counties
Number of counties: Ohio has 88 counties, while South Carolina has 46. Ohio's county count is 1.9 times (91%) higher than South Carolina's.
Biggest county by area: Ohio's largest county is Ashtabula County at 702 square miles; South Carolina's is Horry County at 1,133 square miles. Horry County's land area is 1.6 times (61%) larger than Ashtabula County's.
Smallest county by area: Ohio: Lake County (229 sq mi) vs South Carolina: McCormick County (359 sq mi). McCormick County's land area is 1.6 times (56%) larger than Lake County's.
Most populous county: Ohio: Franklin County (1,356,303 people) vs South Carolina: Greenville County (570,745 people). Franklin County's population is 2.4 times (138%) larger than Greenville County's.
Least populous county: Ohio: Vinton County (12,545 people) vs South Carolina: Allendale County (7,551 people). Vinton County's population is 1.7 times (66%) larger than Allendale County's.
Richest county: Ohio: Delaware County ($96,573 per capita income) vs South Carolina: Charleston County ($90,550). Delaware County's income is 1.1 times (7%) richer than Charleston County's.
Poorest county: Ohio: Noble County ($34,940 per capita income) vs South Carolina: Marlboro County ($41,332). Marlboro County's income is 1.2 times (18%) richer than Noble County's.
Ohio vs South Carolina Taxes
State income tax: Ohio has a top income tax rate of 2.75%, while South Carolina has a top income tax rate of 6%. South Carolina's top rate is 3.25 percentage points higher.
Property tax: Ohio: 1.22% effective rate vs South Carolina: 0.45% of home value per year. Ohio's rate is 0.77 percentage points higher.
Sales tax: Ohio: 7.29% combined state and average local rate vs South Carolina: 7.49%. South Carolina's combined rate is 0.2 percentage points higher.
Official Websites
Ohio official website · South Carolina official website
More Size Comparisons
All Ohio size comparisons · All South Carolina 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.