| Official Name: | Islandton, South Carolina |
| Settlement Type: | Census-designated place |
| Pushpin Map: | South Carolina#USA |
| Pushpin Label: | Islandton |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Carolina |
| Subdivision Type2: | County |
| Subdivision Name2: | Colleton |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 7.17 |
| Area Land Km2: | 7.17 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 2.77 |
| Area Land Sq Mi: | 2.77 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 58 |
| Population Density Km2: | 8.09 |
| Population Density Sq Mi: | 20.95 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 19.5 |
| Coordinates: | 32.9092°N -80.9353°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 29929 |
| Area Code: | 843, 854 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1223470 |
Islandton is an unincorporated community and census-designated place in Colleton County, South Carolina, United States. As of the 2010 census, its population was 70.[3] South Carolina Highway 63 passes through the community, leading east to Walterboro, the county seat, and southwest 10miles to Varnville. Islandton has a post office with ZIP code 29929.[4]
Colleton County School District is the area school district.[5] The public high school for the entire county is Colleton County High School.