The map above shows Oklahoma and South Carolina side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oklahoma vs South Carolina Geography
Land area
- Oklahoma has a land area of 68,597 square miles (177,665 km²), while South Carolina has 30,064 square miles (77,866 km²).
- Oklahoma's land area is 2.3 times (128%) larger than South Carolina's.
Total area
- Oklahoma: 69,899 square miles (181,038 km²) vs South Carolina: 32,024 square miles (82,940 km²), including inland and coastal water.
- Oklahoma's total area is 2.2 times (118%) larger than South Carolina's.
Length
- Oklahoma is 533 miles (857 km) long from north to south; South Carolina is 236 miles (380 km).
- Oklahoma's north-south length is 2.3 times (126%) longer than South Carolina's.
Width
- Oklahoma spans 490 miles (789 km) east to west; South Carolina spans 279 miles (449 km).
- Oklahoma's east-west width is 1.8 times (76%) wider than South Carolina's.
Highest point
- Oklahoma's highest point is Black Mesa at 4,980 feet (1,518 m); South Carolina's is Sassafras Mountain at 3,497 feet (1,066 m).
- Black Mesa is 1,483 feet higher than Sassafras Mountain.
Lowest point
- Oklahoma's lowest point is Little River at 289 feet; South Carolina's is Atlantic Ocean at 0 feet.
- South Carolina's lowest point is 289 feet lower.
Oklahoma vs South Carolina Population and History
Population
- Oklahoma has a population of 4,095,393 (2024), while South Carolina has 5,478,831 (2024).
- South Carolina's population is 1.3 times (34%) larger than Oklahoma's.
Population density
- Oklahoma: 59.7 people per square mile vs South Carolina: 182.2.
- South Carolina's population density is 3.1 times (205%) higher than Oklahoma's.
Biggest city
- Oklahoma's biggest city is Oklahoma City with 712,919 people; South Carolina's is Charleston with 157,665.
- Oklahoma City's population is 4.5 times (352%) larger than Charleston's.
Largest metro area
- Oklahoma's largest metropolitan area is Oklahoma City, OK metro area (1,497,821 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 1.9 times (93%) larger than Oklahoma City, OK metro area's.
History
- Oklahoma: Admitted to the Union on November 16, 1907, as the 46th 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 119 years.
Oklahoma vs South Carolina Economy
GDP
- Oklahoma's GDP is $263.7 billion (2024) vs South Carolina's $357.1 billion.
- South Carolina's economic output is 1.4 times (35%) larger than Oklahoma's.
GDP per capita
- Oklahoma: $64,388 per person vs South Carolina: $65,173.
- Oklahoma and South Carolina have about the same GDP per capita.
Average income
- Oklahoma: $63,708 vs South Carolina: $60,776 average income per person (per capita personal income).
- Oklahoma's average income is 1.0 times (5%) higher than South Carolina's.
Oklahoma vs South Carolina Counties
Number of counties
- Oklahoma has 77 counties, while South Carolina has 46.
- Oklahoma's county count is 1.7 times (67%) higher than South Carolina's.
Biggest county by area
- Oklahoma's largest county is Osage County at 2,247 square miles; South Carolina's is Horry County at 1,133 square miles.
- Osage County's land area is 2.0 times (98%) larger than Horry County's.
Smallest county by area
- Oklahoma: Marshall County (372 sq mi) vs South Carolina: McCormick County (359 sq mi).
- Marshall County and McCormick County have about the same land area.
Most populous county
- Oklahoma: Oklahoma County (816,490 people) vs South Carolina: Greenville County (570,745 people).
- Oklahoma County's population is 1.4 times (43%) larger than Greenville County's.
Least populous county
- Oklahoma: Cimarron County (2,133 people) vs South Carolina: Allendale County (7,551 people).
- Allendale County's population is 3.5 times (254%) larger than Cimarron County's.
Richest county
- Oklahoma: Washington County ($126,749 per capita income) vs South Carolina: Charleston County ($90,550).
- Washington County's income is 1.4 times (40%) richer than Charleston County's.
Poorest county
- Oklahoma: Atoka County ($38,709 per capita income) vs South Carolina: Marlboro County ($41,332).
- Marlboro County's income is 1.1 times (7%) richer than Atoka County's.
Oklahoma vs South Carolina Taxes
State income tax
- Oklahoma has a top income tax rate of 4.5%, while South Carolina has a top income tax rate of 6%.
- South Carolina's top rate is 1.5 percentage points higher.
Property tax
- Oklahoma: 0.75% effective rate vs South Carolina: 0.45% of home value per year.
- Oklahoma's rate is 0.3 percentage points higher.
Sales tax
- Oklahoma: 9.06% combined state and average local rate vs South Carolina: 7.49%.
- Oklahoma's combined rate is 1.57 percentage points higher.
Official Websites
Oklahoma official website · South Carolina official website
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More Size Comparisons
All Oklahoma 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.