Founded in 1871, Aiken County is one of 46 counties in the state of South Carolina. Historically, Aiken County was formed from Barnwell, Edgefield, Lexington, and Orangeburg. The city of Aiken is the county seat. With FIPS code of 3, Aiken County has a population of 170,776 and area of 1,080 square miles (2,797 km2).
List of all cities in Aiken County, SC alphabetically
| City/Town | Postal Code | Area Code |
| Aiken, SC | 29801 | 803 |
| 29802 | 803 | |
| 29803 | 803 | |
| 29804 | 803 | |
| 29805 | 803 | |
| 29808 | 803 | |
| Bath, SC | 29816 | 803 |
| Beech Island, SC | 29841 | 803 |
| 29842 | 803 | |
| Belvedere, SC | 29841 | 803 |
| Berlin, SC | 29137 | 803 |
| Bethcar, SC | 29164 | 803 |
| Breeze Hill, SC | 29834 | 803 |
| Burnettown, SC | 29851 | 803 |
| Clearwater, SC | 29822 | 803 |
| Dunbarton, SC | 29831 | 803 |
| East I Dupont Co, SC | 29808 | 803 |
| Gloverville, SC | 29828 | 803 |
| Graniteville, SC | 29829 | 803 |
| Hibernia, SC | 29105 | 803 |
| Hot L Crossroads, SC | 29164 | 803 |
| Jackson, SC | 29831 | 803 |
| Jones Crossroads, SC | 29105 | 803 |
| Kitchings Mill, SC | 29137 | 803 |
| Langley, SC | 29834 | 803 |
| Mixville, SC | 29851 | 803 |
| Monetta, SC | 29105 | 803 |
| Montmorenci, SC | 29839 | 803 |
| New Ellenton, SC | 29809 | 803 |
| New Holland, SC | 29164 | 803 |
| North Augusta, SC | 29841 | 803 |
| 29842 | 803 | |
| 29860 | 803 | |
| 29861 | 803 | |
| Perry, SC | 29137 | 803 |
| Rocky Springs, SC | 29164 | 803 |
| Salley, SC | 29137 | 803 |
| Savannah River Plant, SC | 29831 | 803 |
| Seivern, SC | 29164 | 803 |
| Stiefeltown, SC | 29851 | 803 |
| Vaucluse, SC | 29850 | 803 |
| Wagener, SC | 29164 | 803 |
| Warrenville, SC | 29851 | 803 |
| Watsonia, SC | 29105 | 803 |
| Windsor, SC | 29856 | 803 |