47 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 02536 | East Falmouth | 21,328 |
| 02601 | Hyannis | 16,071 |
| 02649 | Mashpee | 15,384 |
| 02532 | Buzzards Bay | 13,267 |
| 02632 | Centerville | 11,685 |
| 02645 | Harwich | 11,288 |
| 02563 | Sandwich | 10,436 |
| 02631 | Brewster | 10,061 |
| 02664 | South Yarmouth | 9,949 |
| 02673 | West Yarmouth | 8,594 |
| 02540 | Falmouth | 8,104 |
| 02648 | Marstons Mills | 7,968 |
| 02675 | Yarmouth Port | 7,297 |
| 02653 | Orleans | 6,443 |
| 02537 | East Sandwich | 6,383 |
| 02660 | South Dennis | 6,381 |
| 02642 | Eastham | 5,811 |
| 02633 | Chatham | 4,512 |
| 02655 | Osterville | 4,024 |
| 02667 | Wellfleet | 3,961 |
| 02639 | Dennis Port | 3,808 |
| 02657 | Provincetown | 3,703 |
| 02644 | Forestdale | 3,700 |
| 02635 | Cotuit | 3,577 |
| 02562 | Sagamore Beach | 3,402 |
| 02638 | Dennis | 3,253 |
| 02556 | North Falmouth | 2,868 |
| 02668 | West Barnstable | 2,820 |
| 02559 | Pocasset | 2,802 |
| 02630 | Barnstable | 2,371 |
| 02646 | Harwich Port | 1,846 |
| 02534 | Cataumet | 1,369 |
| 02659 | South Chatham | 1,137 |
| 02670 | West Dennis | 1,087 |
| 02650 | North Chatham | 1,032 |
| 02542 | Buzzards Bay | 882 |
| 02666 | Truro | 863 |
| 02652 | North Truro | 845 |
| 02671 | West Harwich | 818 |
| 02561 | Sagamore | 670 |
| 02663 | South Wellfleet | 443 |
| 02641 | East Dennis | 316 |
| 02637 | Cummaquid | 227 |
| 02647 | Hyannis Port | 209 |
| 02553 | Monument Beach | 30 |
| 02643 | East Orleans | 0 |
| 02672 | West Hyannisport | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 47 ZCTAs in Barnstable County, Massachusetts (US Census).