Ruby
- County:
- Chesterfield County
- County Seat:
- No
- Area (mi²):
- 2.469
- State:
- South Carolina
Ruby is a town located in Chesterfield County, South Carolina. Ruby has a 2026 population of 322. Ruby is currently growing at a rate of 0.94% annually and its population has increased by 2.88% since the most recent census, which recorded a population of 313 in 2020.