Zip Code | City | Population |
|---|---|---|
| 02536 | East Falmouth | 20,909 |
| 02601 | Hyannis | 17,178 |
| 02649 | Mashpee | 15,144 |
| 02532 | Buzzards Bay | 13,092 |
| 02632 | Centerville | 11,929 |
| 02645 | Harwich | 10,930 |
| 02631 | Brewster | 10,176 |
| 02563 | Sandwich | 10,168 |
| 02664 | South Yarmouth | 9,282 |
| 02673 | West Yarmouth | 9,246 |
| 02540 | Falmouth | 8,615 |
| 02648 | Marstons Mills | 7,774 |
| 02675 | Yarmouth Port | 7,185 |
| 02660 | South Dennis | 6,604 |
| 02537 | East Sandwich | 6,408 |
| 02653 | Orleans | 6,322 |
| 02642 | Eastham | 5,724 |
| 02633 | Chatham | 4,667 |
| 02667 | Wellfleet | 3,890 |
| 02644 | Forestdale | 3,838 |
| 02657 | Provincetown | 3,630 |
| 02562 | Sagamore Beach | 3,485 |
| 02655 | Osterville | 3,441 |
| 02639 | Dennis Port | 3,308 |
| 02559 | Pocasset | 3,205 |
| 02638 | Dennis | 3,146 |
| 02635 | Cotuit | 3,007 |
| 02668 | West Barnstable | 2,465 |
| 02556 | North Falmouth | 2,375 |
| 02646 | Harwich Port | 1,950 |
| 02630 | Barnstable | 1,922 |
| 02534 | Cataumet | 1,460 |
| 02670 | West Dennis | 1,340 |
| 02650 | North Chatham | 1,024 |
| 02652 | North Truro | 996 |
| 02659 | South Chatham | 916 |
| 02542 | Buzzards Bay | 766 |
| 02671 | West Harwich | 750 |
| 02666 | Truro | 631 |
| 02561 | Sagamore | 481 |
| 02663 | South Wellfleet | 462 |
| 02637 | Cummaquid | 323 |
| 02641 | East Dennis | 319 |
| 02647 | Hyannis Port | 159 |
| 02553 | Monument Beach | 76 |
| 02672 | West Hyannisport | 28 |
| 02643 | East Orleans | 0 |