
Winnsboro
- County:
- Fairfield County
- County Seat:
- No
- Area (mi²):
- 3.655
- State:
- South Carolina
Winnsboro is a town located in Fairfield County, South Carolina. Winnsboro has a 2025 population of 3,196. Winnsboro is currently declining at a rate of -1.05% annually and its population has decreased by -5.05% since the most recent census, which recorded a population of 3,366 in 2020.
The average household income in Winnsboro is $45,733 with a poverty rate of 24.31%. The median age in Winnsboro is 39.3 years: 39.3 years for males, and 39.3 years for females.