| Localité | Code postal |
|---|---|
| Brookview, Dorchester | 21659 |
| Cambridge, Dorchester | 21613 |
| Church Creek, Dorchester | 21622 |
| Crapo, Dorchester | 21626 |
| Crocheron, Dorchester | 21627 |
| East New Market, Dorchester | 21631 |
| Eldorado, Dorchester | 21659 |
| Elliott, Dorchester | 21869 |
| Fishing Creek, Dorchester | 21634 |
| Galestown, Dorchester | 21659 |
| Hoopersville, Dorchester | 21634 |
| Hurlock, Dorchester | 21643 |
| Linkwood, Dorchester | 21835 |
| Madison, Dorchester | 21648 |
| Rhodesdale, Dorchester | 21659 |
| Salem, Dorchester | 21869 |
| Secretary, Dorchester | 21664 |
| Taylors Island, Dorchester | 21669 |
| Toddville, Dorchester | 21672 |
| Vienna, Dorchester | 21869 |
| Wingate, Dorchester | 21675 |
| Woolford, Dorchester | 21677 |