| Locality | Post Code |
|---|---|
| Adams Run, Dorchester | 29426 |
| Charleston, Dorchester | 29409, 29424, 29425 |
| Dorchester, Dorchester | 29437 |
| Grover, Dorchester | 29447 |
| Harleyville, Dorchester | 29448 |
| Knightsville, Dorchester | 29483 |
| Ladson, Dorchester | 29485 |
| North Charleston, Dorchester | 29420 |
| Reevesville, Dorchester | 29471 |
| Ridgeville, Dorchester | 29472 |
| Saint George, Dorchester | 29477 |
| Summerville, Dorchester | 29483, 29485, 29486 |