26
- 02601 Hyannis
- 02630 Barnstable
- 02631 Brewster
- 02632 Centerville
- 02633 Chatham
- 02635 Cotuit
- 02637 Cummaquid
- 02638 Dennis
- 02639 Dennis Port
- 02641 East Dennis
- 02642 Eastham
- 02643 East Orleans
- 02644 Forestdale
- 02645 Harwich
- 02646 Harwich Port
- 02647 Hyannis Port
- 02648 Marstons Mills
- 02649 Mashpee
- 02650 North Chatham
- 02651 North Eastham
- 02652 North Truro
- 02653 Orleans
- 02655 Osterville
- 02657 Provincetown
- 02659 South Chatham
- 02660 South Dennis
- 02663 South Wellfleet
- 02664 South Yarmouth
- 02666 Truro
- 02667 Wellfleet
- 02668 West Barnstable
- 02669 West Chatham
- 02670 West Dennis
- 02671 West Harwich
- 02672 West Hyannisport
- 02673 West Yarmouth
- 02675 Yarmouth Port