Massachusetts is a New England state surrounded by Rhode Island, Connecticut, New York, Vermont, and New Hampshire, and is rated 44th by area and 14th by population in the United States. Boston is the biggest and capital city of Massachusetts, with a total area of 125 km2 and a population of 645,966 people as of 2013. It is located in Suffolk County and has a population of 645,966 people. Cambridge has the highest population density, with 6,482 people per square kilometer in a 16-square-kilometer area.
| Rank | Name | Population | Area (km²) | Density ( inhabitants/km²) | County |
|---|---|---|---|---|---|
| 1 | Boston | 645,966 | 125 | 5,156 | Suffolk |
| 2 | Worcester | 182,544 | 96 | 1,886 | Worcester |
| 3 | Springfield | 153,703 | 82 | 1,862 | Hampden |
| 4 | Lowell | 108,861 | 35 | 3,094 | Middlesex |
| 5 | Cambridge | 107,289 | 16 | 6,482 | Middlesex |
| 6 | New Bedford | 95,078 | 51 | 1,835 | Bristol |
| 7 | Brockton | 94,089 | 55 | 1,703 | Plymouth |
| 8 | Quincy | 93,494 | 42 | 2,178 | Norfolk |
| 9 | Lynn | 91,589 | 27 | 3,292 | Essex |
| 10 | Fall River | 88,697 | 85 | 1,033 | Bristol |
| 11 | Newton | 87,971 | 46 | 1,904 | Middlesex |
| 12 | Somerville | 78,804 | 10 | 7,378 | Middlesex |
| 13 | Lawrence | 77,657 | 17 | 4,328 | Essex |
| 14 | Framingham | 70,441 | 64 | 1,086 | Middlesex |
| 15 | Waltham | 62,227 | 32 | 1,887 | Middlesex |
| 16 | Haverhill | 62,088 | 85 | 727 | Essex |
| 17 | Malden | 60,509 | 13 | 4,633 | Middlesex |
| 18 | Brookline | 59,128 | 17 | 3,382 | Norfolk |
| 19 | Medford | 57,170 | 20 | 2,725 | Middlesex |
| 20 | Taunton | 56,069 | 120 | 463 | Bristol |
| 21 | Chicopee | 55,717 | 59 | 942 | Hampden |
| 22 | Weymouth Town | 55,419 | 43 | 1,274 | Norfolk |
| 23 | Revere | 53,756 | 14 | 3,649 | Suffolk |
| 24 | Peabody | 52,044 | 41 | 1,239 | Essex |
| 25 | Methuen Town | 48,514 | 57 | 841 | Essex |