Zip Code | City | Population |
|---|---|---|
| 21613 | Cambridge | 17,945 |
| 21643 | Hurlock | 5,021 |
| 21631 | East New Market | 2,787 |
| 21659 | Rhodesdale | 1,225 |
| 21869 | Vienna | 943 |
| 21664 | Secretary | 642 |
| 21677 | Woolford | 598 |
| 21835 | Linkwood | 382 |
| 21634 | Fishing Creek | 367 |
| 21622 | Church Creek | 348 |
| 21669 | Taylors Island | 186 |
| 21648 | Madison | 181 |
| 21672 | Toddville | 113 |
| 21626 | Crapo | 68 |
| 21675 | Wingate | 46 |
| 21627 | Crocheron | 27 |