Sullivan's Island Flag

Sullivan's Island

County Seat:
No
Area (mi²):
2.498

Sullivan's Island is a town located in Charleston County, South Carolina. Sullivan's Island has a 2026 population of 1,948. Sullivan's Island is currently growing at a rate of 0.93% annually and its population has increased by 2.74% since the most recent census, which recorded a population of 1,896 in 2020.

1.9K
Total Population
780
Density (mi²)
18 0.93%
Growth