51 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Albany | 1 | 101,994 | 99,161 | 0.67% | 4,765 | 21 | City |
| Albany | 2 | 101,994 | 98,609 | 0.67% | 4,765 | 21 | City |
| Colonie | 3 | 86,939 | 85,582 | 0.47% | 1,554 | 56 | Town |
| Colonie | 4 | 86,939 | 85,395 | 0.47% | 1,554 | 56 | Town |
| Troy | 5 | 51,003 | 51,405 | -0.12% | 4,924 | 10 | City |
| Troy | 6 | 51,003 | 51,311 | -0.12% | 4,924 | 10 | City |
| Guilderland | 7 | 38,675 | 36,894 | 1.91% | 668 | 58 | Town |
| Guilderland | 8 | 38,675 | 36,847 | 1.91% | 668 | 58 | Town |
| Bethlehem | 9 | 35,692 | 35,056 | 0.76% | 728 | 49 | Town |
| Bethlehem | 10 | 35,692 | 35,060 | 0.76% | 728 | 49 | Town |
| Niskayuna | 11 | 25,786 | 19,741 | 7.14% | 2,171 | 12 | CDP |
| Rotterdam | 12 | 23,178 | 21,939 | 0.73% | 2,825 | 8 | CDP |
| Cohoes | 13 | 18,635 | 18,139 | 0.57% | 4,939 | 4 | City |
| Cohoes | 14 | 18,635 | 18,107 | 0.57% | 4,939 | 4 | City |
| Latham | 15 | 17,075 | 13,760 | 7.14% | 2,953 | 6 | CDP |
| Roessleville | 16 | 14,479 | 11,843 | 7.14% | 3,596 | 4 | CDP |
| Loudonville | 17 | 12,283 | 9,911 | 7.14% | 2,474 | 5 | CDP |
| Watervliet | 18 | 10,245 | 10,377 | -0.22% | 7,634 | 1 | City |
| Watervliet | 19 | 10,245 | 10,357 | -0.22% | 7,634 | 1 | City |
| New Scotland | 20 | 9,351 | 9,092 | 1.09% | 163 | 58 | Town |
| New Scotland | 21 | 9,351 | 9,081 | 1.09% | 163 | 58 | Town |
| Westmere | 22 | 7,926 | 6,961 | 0.53% | 2,501 | 3 | CDP |
| Colonie | 23 | 7,673 | 7,773 | -0.23% | 2,367 | 3 | Village |
| Colonie | 24 | 7,673 | 7,760 | -0.23% | 2,367 | 3 | Village |
| Coeymans | 25 | 7,358 | 7,263 | 0.92% | 147 | 50 | Town |
| Coeymans | 26 | 7,358 | 7,252 | 0.92% | 147 | 50 | Town |
| Menands | 27 | 4,490 | 4,552 | -0.24% | 1,466 | 3 | Village |
| Menands | 28 | 4,490 | 4,544 | -0.24% | 1,466 | 3 | Village |
| Westerlo | 29 | 3,281 | 3,195 | 1.02% | 57 | 58 | Town |
| Westerlo | 30 | 3,281 | 3,190 | 1.02% | 57 | 58 | Town |
| Ravena | 31 | 3,241 | 3,270 | -0.15% | 2,208 | 1 | Village |
| Ravena | 32 | 3,241 | 3,264 | -0.15% | 2,208 | 1 | Village |
| Green Island | 33 | 2,985 | 2,927 | 0.47% | 3,996 | 1 | Town |
| Green Island | 34 | 2,985 | 2,983 | 0.47% | 3,996 | 1 | Town |
| Green Island | 35 | 2,968 | 2,927 | -0.1% | 3,973 | 1 | Village |
| Green Island | 36 | 2,968 | 2,983 | -0.1% | 3,973 | 1 | Village |
| Siena College | 37 | 2,865 | 2,182 | 7.14% | 11,646 | 0 | CDP |
| Voorheesville | 38 | 2,847 | 2,844 | 0.04% | 1,331 | 2 | Village |
| Voorheesville | 39 | 2,847 | 2,839 | 0.04% | 1,331 | 2 | Village |
| Berne | 40 | 2,706 | 2,690 | 0.48% | 42 | 64 | Town |
| Berne | 41 | 2,706 | 2,685 | 0.48% | 42 | 64 | Town |
| Knox | 42 | 2,650 | 2,634 | 0.76% | 63 | 42 | Town |
| Knox | 43 | 2,650 | 2,632 | 0.76% | 63 | 42 | Town |
| Rensselaerville | 44 | 1,882 | 1,828 | 1.07% | 31 | 61 | Town |
| Rensselaerville | 45 | 1,882 | 1,826 | 1.07% | 31 | 61 | Town |
| Altamont | 46 | 1,647 | 1,667 | -0.24% | 1,301 | 1 | Village |
| Altamont | 47 | 1,647 | 1,664 | -0.24% | 1,301 | 1 | Village |
| Clarksville | 48 | 954 | 977 | -0.31% | 26 | 36 | Town |
| Clarksville | 49 | 954 | 975 | -0.31% | 26 | 36 | Town |
| Mariaville Lake | 50 | 793 | 530 | 0.63% | 141 | 6 | CDP |
| Preston-Potter Hollow | 51 | 491 | 385 | 1.66% | 48 | 10 | CDP |
Albany is the largest city in Albany County, with a population of 101,994.
Preston-Potter Hollow is the smallest city in Albany County, with a population of 491.
There are 51 cities in Albany County, New York.