Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Boston (city), MA | 675,647 |
| 2 | Cambridge (city), MA | 118,403 |
| 3 | Newton (city), MA | 88,923 |
| 4 | Somerville (city), MA | 81,045 |
| 5 | Framingham (city), MA | 72,362 |
| 6 | Waltham (city), MA | 65,218 |
| 7 | Brookline (CDP), MA | 63,191 |
| 8 | Arlington (CDP), MA | 46,308 |
| 9 | Marlborough (city), MA | 41,793 |
| 10 | Woburn (city), MA | 40,876 |
| 11 | Randolph Town (city), MA | 34,984 |
| 12 | Lexington (CDP), MA | 34,454 |
| 13 | Needham (CDP), MA | 32,091 |
| 14 | Norwood (CDP), MA | 31,611 |
| 15 | Wellesley (CDP), MA | 29,550 |
| 16 | Belmont (CDP), MA | 27,295 |
| 17 | Milford (CDP), MA | 26,971 |
| 18 | Burlington (CDP), MA | 26,377 |
| 19 | Dedham (CDP), MA | 25,364 |
| 20 | Hudson (CDP), MA | 15,749 |