| Localité | Code postal |
|---|---|
| Bon Air, Sumter | 29150 |
| Borden, Sumter | 29128 |
| Boykin, Sumter | 29128 |
| Brogdon, Sumter | 29150 |
| Dalzell, Sumter | 29040 |
| Dunkins Mill, Sumter | 29128 |
| Frens, Sumter | 29150 |
| Gable, Sumter | 29051 |
| Gaillard Crossroads, Sumter | 29040 |
| Hagood, Sumter | 29128 |
| Highway Four Forty One, Sumter | 29150 |
| Horatio, Sumter | 29062 |
| Hoyt Heights, Sumter | 29150 |
| Lynchburg, Sumter | 29080 |
| Mayesville, Sumter | 29104 |
| Millford, Sumter | 29125 |
| Olanta, Sumter | 29114 |
| Oswego, Sumter | 29150 |
| Panola, Sumter | 29125 |
| Pinewood, Sumter | 29125 |
| Pisgah, Sumter | 29128 |
| Rembert, Sumter | 29128 |
| Rimini, Sumter | 29125 |
| Saint Charles, Sumter | 29104 |
| Scottsville, Sumter | 29104 |
| Shaw Air Force Base, Sumter | 29152 |