90 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wellsville | 1 | 6,913 | 7,067 | -0.2% | 189 | 37 | Town |
| Wellsville | 2 | 6,913 | 7,047 | -0.2% | 189 | 37 | Town |
| Alfred | 3 | 6,545 | 5,163 | -0.11% | 208 | 31 | Town |
| Alfred | 4 | 6,545 | 6,131 | -0.11% | 208 | 31 | Town |
| Alfred | 5 | 5,578 | 4,072 | 1.96% | 4,687 | 1 | Village |
| Alfred | 6 | 5,578 | 5,042 | 1.96% | 4,687 | 1 | Village |
| Wellsville | 7 | 4,530 | 4,643 | -0.46% | 1,869 | 2 | Village |
| Wellsville | 8 | 4,530 | 4,632 | -0.46% | 1,869 | 2 | Village |
| Cuba | 9 | 3,070 | 3,130 | -0.52% | 87 | 35 | Town |
| Cuba | 10 | 3,070 | 3,124 | -0.52% | 87 | 35 | Town |
| Caneadea | 11 | 2,250 | 2,299 | -0.09% | 63 | 36 | Town |
| Caneadea | 12 | 2,250 | 2,276 | -0.09% | 63 | 36 | Town |
| Amity | 13 | 2,129 | 2,176 | -0.09% | 62 | 34 | Town |
| Amity | 14 | 2,129 | 2,173 | -0.09% | 62 | 34 | Town |
| Hume | 15 | 2,037 | 2,076 | -0.29% | 54 | 38 | Town |
| Hume | 16 | 2,037 | 2,075 | -0.29% | 54 | 38 | Town |
| Bolivar | 17 | 1,971 | 2,030 | -0.5% | 55 | 36 | Town |
| Bolivar | 18 | 1,971 | 2,027 | -0.5% | 55 | 36 | Town |
| Friendship | 19 | 1,932 | 1,944 | 0.1% | 53 | 36 | Town |
| Friendship | 20 | 1,932 | 1,941 | 0.1% | 53 | 36 | Town |
| Houghton | 21 | 1,790 | 1,683 | 0.34% | 658 | 3 | CDP |
| Belfast | 22 | 1,632 | 1,641 | 0.43% | 45 | 36 | Town |
| Belfast | 23 | 1,632 | 1,638 | 0.43% | 45 | 36 | Town |
| Genesee | 24 | 1,595 | 1,637 | -0.37% | 44 | 36 | Town |
| Genesee | 25 | 1,595 | 1,634 | -0.37% | 44 | 36 | Town |
| Scio | 26 | 1,595 | 1,614 | -0.25% | 45 | 35 | Town |
| Scio | 27 | 1,595 | 1,613 | -0.25% | 45 | 35 | Town |
| Andover | 28 | 1,572 | 1,618 | -0.44% | 40 | 39 | Town |
| Andover | 29 | 1,572 | 1,616 | -0.44% | 40 | 39 | Town |
| Almond | 30 | 1,499 | 1,510 | 0.33% | 33 | 46 | Town |
| Almond | 31 | 1,499 | 1,507 | 0.33% | 33 | 46 | Town |
| Cuba | 32 | 1,495 | 1,544 | -0.6% | 1,229 | 1 | Village |
| Cuba | 33 | 1,495 | 1,540 | -0.6% | 1,229 | 1 | Village |
| Angelica | 34 | 1,277 | 1,273 | 0.39% | 35 | 36 | Town |
| Angelica | 35 | 1,277 | 1,273 | 0.39% | 35 | 36 | Town |
| Willing | 36 | 1,247 | 1,283 | -0.32% | 34 | 36 | Town |
| Willing | 37 | 1,247 | 1,281 | -0.32% | 34 | 36 | Town |
| Independence | 38 | 1,086 | 1,085 | 0.37% | 31 | 34 | Town |
| Independence | 39 | 1,086 | 1,083 | 0.37% | 31 | 34 | Town |
| Rushford | 40 | 1,071 | 1,075 | 0.19% | 30 | 35 | Town |
| Rushford | 41 | 1,071 | 1,073 | 0.19% | 30 | 35 | Town |
| Wirt | 42 | 1,022 | 1,048 | -0.29% | 28 | 36 | Town |
| Wirt | 43 | 1,022 | 1,047 | -0.29% | 28 | 36 | Town |
| Burns | 44 | 1,017 | 1,035 | -0.1% | 37 | 27 | Town |
| Burns | 45 | 1,017 | 1,033 | -0.1% | 37 | 27 | Town |
| Bolivar | 46 | 995 | 1,026 | -0.6% | 1,248 | 1 | Village |
| Bolivar | 47 | 995 | 1,024 | -0.6% | 1,248 | 1 | Village |
| Centerville | 48 | 972 | 927 | 1.89% | 27 | 35 | Town |
| Centerville | 49 | 972 | 926 | 1.89% | 27 | 35 | Town |
| Andover | 50 | 885 | 913 | -0.67% | 884 | 1 | Village |
| Andover | 51 | 885 | 912 | -0.67% | 884 | 1 | Village |
| Belmont | 52 | 829 | 854 | -0.6% | 832 | 1 | Village |
| Belmont | 53 | 829 | 853 | -0.6% | 832 | 1 | Village |
| New Hudson | 54 | 795 | 794 | -0.13% | 22 | 36 | Town |
| New Hudson | 55 | 795 | 795 | -0.13% | 22 | 36 | Town |
| North Hornell | 56 | 761 | 780 | -0.52% | 1,550 | 0 | Village |
| North Hornell | 57 | 761 | 779 | -0.52% | 1,550 | 0 | Village |
| Alma | 58 | 758 | 777 | -0.39% | 21 | 36 | Town |
| Alma | 59 | 758 | 776 | -0.39% | 21 | 36 | Town |
| Friendship | 60 | 737 | 854 | -4.16% | 255 | 3 | CDP |
| Angelica | 61 | 704 | 719 | -0.42% | 327 | 2 | Village |
| Angelica | 62 | 704 | 718 | -0.42% | 327 | 2 | Village |
| Fillmore | 63 | 664 | 538 | 0.61% | 700 | 1 | CDP |
| Belfast | 64 | 608 | 752 | -2.56% | 393 | 2 | CDP |
| Scio | 65 | 584 | 688 | -0.34% | 441 | 1 | CDP |
| Stannards | 66 | 571 | 632 | -2.56% | 204 | 3 | CDP |
| Granger | 67 | 521 | 517 | 0% | 16 | 32 | Town |
| Granger | 68 | 521 | 516 | 0% | 16 | 32 | Town |
| Rushford | 69 | 513 | 403 | 1.99% | 874 | 1 | CDP |
| Allen | 70 | 511 | 488 | 2.61% | 14 | 36 | Town |
| Allen | 71 | 511 | 487 | 2.61% | 14 | 36 | Town |
| Grove | 72 | 501 | 493 | 0.8% | 15 | 33 | Town |
| Grove | 73 | 501 | 492 | 0.8% | 15 | 33 | Town |
| Canaseraga | 74 | 451 | 466 | -0.66% | 425 | 1 | Village |
| Canaseraga | 75 | 451 | 465 | -0.66% | 425 | 1 | Village |
| Groveland Station | 76 | 446 | 373 | 2.53% | 761 | 1 | CDP |
| Richburg | 77 | 403 | 416 | -0.74% | 448 | 1 | Village |
| Richburg | 78 | 403 | 416 | -0.74% | 448 | 1 | Village |
| Almond | 79 | 394 | 405 | -0.51% | 699 | 1 | Village |
| Almond | 80 | 394 | 404 | -0.51% | 699 | 1 | Village |
| Ward | 81 | 330 | 330 | 0% | 11 | 29 | Town |
| Ward | 82 | 330 | 329 | 0% | 11 | 29 | Town |
| West Almond | 83 | 277 | 277 | 0.36% | 8 | 36 | Town |
| West Almond | 84 | 277 | 277 | 0.36% | 8 | 36 | Town |
| Birdsall | 85 | 188 | 189 | 0% | 5 | 36 | Town |
| Birdsall | 86 | 188 | 189 | 0% | 5 | 36 | Town |
| Woodsville | 87 | 84 | 65 | 7.69% | 265 | 0 | CDP |
| Cumminsville | 88 | 62 | 68 | -11.43% | 473 | 0 | CDP |
| Byersville | 89 | 58 | 34 | 7.41% | 114 | 1 | CDP |
| Kysorville | 90 | 46 | 47 | -8% | 56 | 1 | CDP |
Wellsville is the largest city in Allegany County, with a population of 6,913.
Kysorville is the smallest city in Allegany County, with a population of 46.
There are 90 cities in Allegany County, New York.