| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Presque Isle | 1 | 8,635 | 8,773 | -0.68% | 114 | 76 | City |
| Caribou | 2 | 7,292 | 7,405 | -0.4% | 92 | 79 | City |
| Houlton | 3 | 6,097 | 6,060 | 0.68% | 166 | 37 | Town |
| Fort Kent | 4 | 4,130 | 4,072 | -0.51% | 76 | 54 | Town |
| Madawaska | 5 | 3,836 | 3,867 | -0.26% | 69 | 56 | Town |
| Fort Fairfield | 6 | 3,261 | 3,323 | -0.73% | 42 | 77 | Town |
| Van Buren | 7 | 1,969 | 2,037 | -0.81% | 58 | 34 | Town |
| Mapleton | 8 | 1,914 | 1,885 | 0.26% | 56 | 34 | Town |
| Washburn | 9 | 1,486 | 1,524 | -0.87% | 43 | 34 | Town |
| Limestone | 10 | 1,471 | 1,523 | -1.08% | 36 | 40 | Town |
| Mars Hill | 11 | 1,312 | 1,359 | -0.46% | 37 | 35 | Town |
| Easton | 12 | 1,304 | 1,319 | -0.61% | 34 | 39 | Town |
| Hodgdon | 13 | 1,286 | 1,292 | -0.77% | 32 | 40 | Town |
| Woodland | 14 | 1,197 | 1,209 | -0.75% | 34 | 35 | Town |
| Ashland | 15 | 1,176 | 1,199 | -0.84% | 15 | 80 | Town |
| Frenchville | 16 | 1,008 | 1,049 | -1.08% | 35 | 29 | Town |
| Littleton | 17 | 991 | 1,002 | -0.8% | 26 | 38 | Town |
| Linneus | 18 | 943 | 945 | -0.74% | 21 | 44 | Town |
| Sherman | 19 | 796 | 810 | -0.75% | 20 | 40 | Town |
| Eagle Lake | 20 | 749 | 773 | -0.66% | 20 | 37 | Town |
| Island Falls | 21 | 745 | 761 | -0.67% | 21 | 36 | Town |
| St. Agatha | 22 | 729 | 728 | -0.41% | 24 | 30 | Town |
| Monticello | 23 | 719 | 732 | -0.83% | 19 | 38 | Town |
| Blaine | 24 | 655 | 665 | -0.61% | 35 | 19 | Town |
| Oakfield | 25 | 650 | 664 | -0.76% | 18 | 35 | Town |
| New Sweden | 26 | 570 | 581 | -0.7% | 16 | 35 | Town |
| New Limerick | 27 | 569 | 570 | 0.35% | 31 | 18 | Town |
| Bridgewater | 28 | 520 | 529 | -0.57% | 13 | 39 | Town |
| Wallagrass | 29 | 505 | 518 | -0.98% | 13 | 40 | Town |
| Chapman | 30 | 501 | 494 | 0.4% | 13 | 38 | Town |
| Smyrna | 31 | 451 | 441 | 0% | 13 | 35 | Town |
| Westfield | 32 | 448 | 450 | -0.88% | 11 | 40 | Town |
| Ludlow | 33 | 441 | 437 | -0.68% | 20 | 22 | Town |
| St. Francis | 34 | 422 | 435 | -0.94% | 14 | 30 | Town |
| Perham | 35 | 381 | 368 | 0% | 10 | 37 | Town |
| Castle Hill | 36 | 369 | 370 | -0.27% | 10 | 36 | Town |
| Portage Lake | 37 | 355 | 360 | -1.11% | 12 | 31 | Town |
| Grand Isle | 38 | 354 | 359 | -0.56% | 10 | 35 | Town |
| New Canada | 39 | 307 | 304 | -0.32% | 9.0 | 36 | Town |
| Caswell | 40 | 280 | 290 | -1.06% | 7.0 | 41 | Town |
| St. John | 41 | 259 | 265 | -0.77% | 5.0 | 50 | Plantation |
| Amity | 42 | 249 | 254 | -0.4% | 6.0 | 42 | Town |
| Stockholm | 43 | 247 | 249 | 0% | 7.0 | 34 | Town |
| Crystal | 44 | 243 | 249 | -0.82% | 6.0 | 40 | Town |
| Weston | 45 | 239 | 244 | -0.83% | 8.0 | 31 | Town |
| Allagash | 46 | 234 | 236 | 0% | 2.0 | 129 | Town |
| Wade | 47 | 230 | 232 | -0.86% | 6.0 | 36 | Town |
| Dyer Brook | 48 | 209 | 214 | -0.95% | 5.0 | 39 | Town |
| Merrill | 49 | 203 | 207 | -0.98% | 5.0 | 37 | Town |
| Masardis | 50 | 201 | 205 | -0.99% | 5.0 | 39 | Town |
| Winterville | 51 | 190 | 195 | -1.04% | 5.0 | 36 | Plantation |
| Hamlin | 52 | 161 | 164 | -0.62% | 7.0 | 23 | Town |
| Orient | 53 | 149 | 155 | -1.32% | 4.0 | 35 | Town |
| Reed | 54 | 126 | 126 | 0% | 2.0 | 59 | Plantation |
| Haynesville | 55 | 98 | 100 | -1.01% | 2.0 | 41 | Town |
| Hammond | 56 | 88 | 90 | -1.12% | 2.0 | 39 | Town |
| Hersey | 57 | 79 | 73 | 1.28% | 2.0 | 40 | Town |
| Westmanland | 58 | 79 | 78 | 0% | 2.0 | 36 | Town |
| Garfield | 59 | 77 | 80 | -1.28% | 2.0 | 38 | Plantation |
| Cyr | 60 | 76 | 79 | -1.3% | 2.0 | 38 | Plantation |
| Macwahoc | 61 | 58 | 60 | -1.69% | 2.0 | 29 | Plantation |
| Moro | 62 | 43 | 44 | 0% | 1.0 | 35 | Plantation |
| Nashville | 63 | 24 | 26 | -4% | 1.0 | 35 | Plantation |
| Glenwood | 64 | 4 | 4 | 0% | 0 | 38 | Plantation |
Presque Isle is the largest city in Aroostook County, with a population of 8,635.
Glenwood is the smallest city in Aroostook County, with a population of 4.
There are 64 cities in Aroostook County, Maine.