St. Stephen
- County:
- Berkeley County
- County Seat:
- No
- Area (mi²):
- 2.59
- State:
- South Carolina
St. Stephen is a town located in Berkeley County, South Carolina. St. Stephen has a 2026 population of 1,592. St. Stephen is currently growing at a rate of 0.32% annually and its population has increased by 1.34% since the most recent census, which recorded a population of 1,571 in 2020.