United States · permanent state record · SC
South Carolina
South Carolina at a glance
- Capital
- Columbia · O7 on the national map
- U.S. Census Bureau, Guide to 2010 State and Local Census Geography: South Carolina · Capital field in the Census state geography guide; source page checked 2026-09-13. This is a federal secondary reference, not the designating constitution or statute.
- Admitted to the Union
- 1788-05-23
- U.S. Senate, South Carolina: States in the Senate timeline · Federal institutional history; this is a secondary reference to the act, ratification, or proclamation establishing statehood, not the enrolled act itself.
- Total area
- 32020.5 square miles
- U.S. Census Bureau, State Area Measurements and Internal Point Coordinates · Total area: land and water.
- Population
- 5,570,274 people
- U.S. Census Bureau, Vintage 2025 Population Estimates · Vintage 2025 resident population estimate.
- ZIP Code range
- 290–299
- U.S. Postal Service, ZIP Code system · Summary of ZIP Code prefixes principally assigned to the state; ZIP Codes are routing constructs, not geographic boundaries.
- Area codes
- 803, 821, 839, 843, 854, 864
- North American Numbering Plan Administrator, NPA reports · In-service geographic area codes assigned to the state.
Selected dated milestones · not a complete state history
South Carolina through time
Admitted to the Union
South Carolina was admitted to the Union on 1788-05-23.
U.S. Senate, South Carolina: States in the Senate timeline · as of 2026-09-04