
Cayce
- County:
- Lexington County
- County Seat:
- No
- Area (mi²):
- 16.881
- State:
- South Carolina
Cayce is a city located in Lexington County, South Carolina. Cayce has a 2025 population of 13,594. Cayce is currently declining at a rate of -0.24% annually and its population has decreased by -1.19% since the most recent census, which recorded a population of 13,758 in 2020.
The average household income in Cayce is $74,003 with a poverty rate of 17.81%. The median age in Cayce is 36.9 years: 31.6 years for males, and 42 years for females.