37 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ellsworth | 1 | 8,946 | 8,415 | 0.7% | 113 | 79 | City |
| Bar Harbor | 2 | 5,350 | 5,105 | 0.22% | 127 | 42 | Town |
| Bucksport | 3 | 5,009 | 4,945 | -0.3% | 97 | 52 | Town |
| Blue Hill | 4 | 2,780 | 2,790 | -0.54% | 44 | 62 | Town |
| Hancock | 5 | 2,594 | 2,467 | 0.97% | 86 | 30 | Town |
| Mount Desert | 6 | 2,219 | 2,152 | 0.27% | 60 | 37 | Town |
| Orland | 7 | 2,210 | 2,222 | -0.45% | 47 | 47 | Town |
| Deer Isle | 8 | 2,105 | 2,191 | -0.66% | 71 | 30 | Town |
| Southwest Harbor | 9 | 1,868 | 1,752 | 0.59% | 138 | 14 | Town |
| Lamoine | 10 | 1,831 | 1,717 | 0.88% | 103 | 18 | Town |
| Gouldsboro | 11 | 1,775 | 1,701 | 0.62% | 38 | 46 | Town |
| Franklin | 12 | 1,692 | 1,570 | 1.5% | 46 | 36 | Town |
| Surry | 13 | 1,679 | 1,635 | -0.06% | 45 | 37 | Town |
| Trenton | 14 | 1,643 | 1,593 | 0% | 90 | 18 | Town |
| Dedham | 15 | 1,636 | 1,651 | -0.67% | 42 | 39 | Town |
| Tremont | 16 | 1,524 | 1,545 | -0.65% | 91 | 17 | Town |
| Castine | 17 | 1,443 | 1,317 | 2.92% | 186 | 8 | Town |
| Sullivan | 18 | 1,303 | 1,218 | 1.16% | 49 | 27 | Town |
| Sedgwick | 19 | 1,190 | 1,197 | -0.5% | 44 | 27 | Town |
| Penobscot | 20 | 1,176 | 1,134 | 1.03% | 29 | 40 | Town |
| Stonington | 21 | 1,049 | 1,054 | -0.38% | 107 | 10 | Town |
| Brooksville | 22 | 920 | 932 | -0.65% | 30 | 31 | Town |
| Brooklin | 23 | 822 | 827 | -0.48% | 46 | 18 | Town |
| Otis | 24 | 660 | 668 | -0.6% | 27 | 25 | Town |
| Verona Island | 25 | 506 | 508 | -0.78% | 81 | 6 | Town |
| Mariaville | 26 | 503 | 473 | 0.4% | 13 | 39 | Town |
| Winter Harbor | 27 | 488 | 464 | 0.62% | 34 | 14 | Town |
| Eastbrook | 28 | 428 | 426 | -0.47% | 13 | 33 | Town |
| Waltham | 29 | 361 | 334 | 2.56% | 12 | 30 | Town |
| Swans Island | 30 | 356 | 359 | -0.56% | 29 | 12 | Town |
| Sorrento | 31 | 274 | 278 | -0.72% | 69 | 4 | Town |
| Amherst | 32 | 272 | 248 | 2.26% | 7 | 39 | Town |
| Cranberry Isles | 33 | 157 | 162 | -1.26% | 49 | 3 | Town |
| Aurora | 34 | 98 | 91 | 2.08% | 3 | 38 | Town |
| Osborn | 35 | 63 | 65 | -1.56% | 2 | 35 | Town |
| Great Pond | 36 | 62 | 62 | 0% | 2 | 38 | Town |
| Frenchboro | 37 | 30 | 30 | 0% | 6 | 5 | Town |
Ellsworth is the largest city in Hancock County, with a population of 8,946.
Frenchboro is the smallest city in Hancock County, with a population of 30.
There are 37 cities in Hancock County, Maine.