Founded in 1785, Edgefield County is one of 46 counties in the state of South Carolina. Historically, Edgefield County was formed from Ninety-Six District. The city of Edgefield is the county seat. With FIPS code of 37, Edgefield County has a population of 26,153 and area of 507 square miles (1,313 km2).
List of all cities in Edgefield County, SC alphabetically
| City/Town | Postal Code | Area Code |
| Cleora, SC | 29824 | 803 |
| Edgefield, SC | 29824 | 803 |
| Eureka, SC | 29847 | 803 |
| Johnston, SC | 29832 | 803 |
| Meeting Street, SC | 29824 | 803 |
| Pleasant Lane, SC | 29824 | 803 |
| Trenton, SC | 29847 | 803 |