There are 38 cities in Worcester County, Massachusetts.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Worcester | 1 | Massachusetts | 205,575 | 205,063 | 0.06% | 5,503 | 37.36 |
| Leominster | 2 | Massachusetts | 43,548 | 43,744 | -0.11% | 1,511 | 28.82 |
| Fitchburg | 3 | Massachusetts | 41,345 | 41,659 | -0.19% | 1,486 | 27.82 |
| Milford | 4 | Massachusetts | 28,035 | 26,072 | 0.84% | 2,761 | 10.15 |
| Gardner | 5 | Massachusetts | 20,585 | 21,219 | -0.76% | 933 | 22.07 |
| Southbridge Town | 6 | Massachusetts | 17,527 | 17,711 | -0.26% | 866 | 20.24 |
| Webster | 7 | Massachusetts | 12,620 | 11,719 | 1.43% | 4,248 | 2.97 |
| Palmer Town | 8 | Massachusetts | 12,252 | 12,422 | -0.34% | 388 | 31.58 |
| Athol | 9 | Massachusetts | 9,136 | 8,323 | -0.07% | 1,116 | 8.19 |
| Clinton | 10 | Massachusetts | 7,173 | 7,058 | -1.29% | 4,804 | 1.49 |
| Whitinsville | 11 | Massachusetts | 7,161 | 7,435 | -0.78% | 1,966 | 3.64 |
| Northborough | 12 | Massachusetts | 6,822 | 6,532 | 1.08% | 2,077 | 3.29 |
| Ware | 13 | Massachusetts | 6,081 | 5,978 | -1.4% | 978 | 6.22 |
| Spencer | 14 | Massachusetts | 5,464 | 5,810 | -1.55% | 2,591 | 2.11 |
| Oxford | 15 | Massachusetts | 5,446 | 5,926 | 0.33% | 1,572 | 3.46 |
| Hopedale | 16 | Massachusetts | 4,631 | 3,643 | 5.63% | 2,649 | 1.75 |
| Winchendon | 17 | Massachusetts | 4,457 | 4,673 | -0.04% | 1,968 | 2.27 |
| Westborough | 18 | Massachusetts | 4,415 | 4,024 | 0.39% | 2,338 | 1.89 |
| Upton | 19 | Massachusetts | 2,913 | 2,279 | 5.77% | 1,180 | 2.47 |
| Cordaville | 20 | Massachusetts | 2,884 | 2,884 | 0% | 1,588 | 1.82 |
| Ayer | 21 | Massachusetts | 2,751 | 2,551 | -3.81% | 2,075 | 1.33 |
| Lunenburg | 22 | Massachusetts | 2,705 | 1,593 | 11.45% | 712 | 3.80 |
| Fiskdale | 23 | Massachusetts | 2,639 | 3,015 | -3.44% | 833 | 3.17 |
| North Brookfield | 24 | Massachusetts | 2,451 | 2,423 | 0.29% | 1,661 | 1.48 |
| Baldwinville | 25 | Massachusetts | 2,435 | 2,137 | 3.18% | 949 | 2.57 |
| Sturbridge | 26 | Massachusetts | 2,232 | 2,101 | 0.22% | 419 | 5.33 |
| East Douglas | 27 | Massachusetts | 2,139 | 2,985 | -8.98% | 628 | 3.41 |
| South Lancaster | 28 | Massachusetts | 1,686 | 1,575 | 1.32% | 1,271 | 1.33 |
| Rutland | 29 | Massachusetts | 1,631 | 1,749 | -1.75% | 551 | 2.96 |
| West Brookfield | 30 | Massachusetts | 1,553 | 1,511 | 0.71% | 1,230 | 1.26 |
| Devens | 31 | Massachusetts | 1,519 | 2,007 | -7.43% | 224 | 6.78 |
| East Brookfield | 32 | Massachusetts | 1,417 | 1,273 | 2.61% | 876 | 1.62 |
| South Ashburnham | 33 | Massachusetts | 1,215 | 883 | 7.33% | 407 | 2.98 |
| Brookfield | 34 | Massachusetts | 1,180 | 716 | 10.9% | 1,024 | 1.15 |
| West Warren | 35 | Massachusetts | 900 | 585 | 4.29% | 710 | 1.27 |
| Warren | 36 | Massachusetts | 588 | 546 | 1.91% | 458 | 1.28 |
| Barre | 37 | Massachusetts | 504 | 950 | -8.2% | 319 | 1.58 |
| Petersham | 38 | Massachusetts | 294 | 256 | 3.52% | 238 | 1.23 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Worcester is the largest city in Worcester County.
Petersham is the smallest city in Worcester County.
There are 38 cities in Worcester County, Massachusetts.