| 1 | North Falmouth CDP (east-southeast) | 7,382 |
| 2 | Forestdale CDP (east-northeast) | 7,149 |
| 3 | South Yarmouth CDP (north) | 6,386 |
| 4 | Forestdale CDP (north-northwest) | 6,193 |
| 5 | East Falmouth CDP (northeast) | 5,954 |
| 6 | Barnstable Town city (west) | 5,951 |
| 7 | West Yarmouth CDP (northeast) | 5,707 |
| 8 | Orleans CDP (west-southwest) | 5,510 |
| 9 | Sagamore CDP | 5,402 |
| 10 | East Harwich CDP | 5,324 |
| 11 | North Eastham CDP (south-southwest 1) | 5,312 |
| 12 | Mashpee Neck CDP (east-northeast) | 5,288 |
| 13 | West Yarmouth CDP (west-southwest) | 5,112 |
| 14 | North Eastham CDP (south-southwest 2) | 5,089 |
| 15 | Monument Beach CDP | 5,055 |
| 16 | Brewster CDP | 4,857 |
| 17 | Forestdale CDP (southeast) | 4,668 |
| 18 | Yarmouth Port CDP (southeast) | 4,601 |
| 19 | Pocasset CDP | 4,588 |
| 20 | Barnstable Town city (south-southwest) | 4,571 |
| 21 | North Eastham CDP (north-northeast) | 4,371 |
| 22 | Northwest Harwich CDP | 4,370 |
| 23 | East Falmouth CDP (southwest) | 4,361 |
| 24 | Buzzards Bay CDP | 4,197 |
| 25 | West Yarmouth CDP (west-northwest) | 4,175 |
| 26 | Barnstable Town city (northeast) | 4,170 |
| 27 | South Dennis CDP | 4,100 |
| 28 | Teaticket CDP | 4,098 |
| 29 | Mashpee Neck CDP (south-southwest) | 4,080 |
| 30 | East Sandwich CDP | 3,926 |
| 31 | Mashpee Neck CDP (west) | 3,924 |
| 32 | Harwich Port CDP | 3,812 |
| 33 | North Falmouth CDP (west-northwest) | 3,737 |
| 34 | Falmouth CDP | 3,709 |
| 35 | North Eastham CDP (north-northwest) | 3,681 |
| 36 | Woods Hole CDP | 3,600 |
| 37 | East Dennis CDP | 3,497 |
| 38 | North Eastham CDP (south) | 3,486 |
| 39 | West Chatham CDP (north) | 3,380 |
| 40 | Orleans CDP (east-southeast) | 3,335 |
| 41 | West Chatham CDP (south) | 3,263 |
| 42 | West Yarmouth CDP (southeast) | 3,262 |
| 43 | Sandwich CDP | 3,151 |
| 44 | Barnstable Town city (east) | 3,108 |
| 45 | North Eastham CDP (northeast) | 3,027 |
| 46 | Orleans CDP (northeast) | 3,007 |
| 47 | North Eastham CDP (south-southwest 3) | 2,970 |
| 48 | North Eastham CDP (east-northeast) | 2,745 |
| 49 | South Yarmouth CDP (south) | 2,720 |
| 50 | Dennis Port CDP | 2,677 |
| 51 | Dennis CDP | 2,619 |
| 52 | New Seabury CDP | 2,562 |
| 53 | Yarmouth Port CDP (northwest) | 2,415 |
| 54 | West Dennis CDP | 1,910 |
| 55 | North Eastham CDP (north) | 1,675 |
| 56 | Forestdale CDP (west) | 854 |