| Localité | Code postal |
|---|---|
| West Barnstable, Barnstable | 02668 |
| West Chatham, Barnstable | 02669 |
| West Dennis, Barnstable | 02670 |
| West Falmouth, Barnstable | 02574 |
| West Harwich, Barnstable | 02671 |
| West Hyannisport, Barnstable | 02672 |
| West Yarmouth, Barnstable | 02673 |
| Woods Hole, Barnstable | 02543 |
| Yarmouth Port, Barnstable | 02675 |