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 | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Albany | 1 | 102,076 | 98,682 | 0.84% | 4,769 | 21.4 | City |
| Colonie | 2 | 85,740 | 85,383 | 0.17% | 1,532 | 56.0 | Town |
| Troy | 3 | 50,370 | 51,318 | -0.47% | 4,863 | 10.4 | City |
| Guilderland | 4 | 36,843 | 36,772 | -0.35% | 636 | 57.9 | Town |
| Bethlehem | 5 | 35,018 | 35,057 | 0.15% | 714 | 49.0 | Town |
| Cohoes | 6 | 18,238 | 18,109 | 0.18% | 4,834 | 3.8 | City |
| Watervliet | 7 | 10,107 | 10,357 | -0.62% | 7,531 | 1.3 | City |
| New Scotland | 8 | 9,136 | 9,086 | 0.35% | 159 | 57.5 | Town |
| Colonie | 9 | 7,575 | 7,761 | -0.62% | 2,337 | 3.2 | Village |
| Coeymans | 10 | 7,182 | 7,253 | -0.03% | 143 | 50.2 | Town |
| Menands | 11 | 4,433 | 4,544 | -0.63% | 1,448 | 3.1 | Village |
| Westerlo | 12 | 3,205 | 3,186 | 0.25% | 55 | 57.8 | Town |
| Ravena | 13 | 3,195 | 3,267 | -0.56% | 2,176 | 1.5 | Village |
| Green Island | 14 | 2,933 | 2,989 | -0.47% | 3,926 | 0.7 | Village |
| Green Island | 15 | 2,932 | 2,989 | -0.51% | 3,925 | 0.7 | Town |
| Voorheesville | 16 | 2,792 | 2,839 | -0.43% | 1,305 | 2.1 | Village |
| Berne | 17 | 2,666 | 2,686 | -0.07% | 42 | 64.0 | Town |
| Knox | 18 | 2,588 | 2,632 | -0.27% | 62 | 41.8 | Town |
| Rensselaerville | 19 | 1,838 | 1,826 | 0.27% | 30 | 61.5 | Town |
| Altamont | 20 | 1,630 | 1,665 | -0.55% | 1,288 | 1.3 | Village |
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.
Albany is the largest city in Albany County.
Altamont is the smallest city in Albany County.
There are 20 cities in Albany County, New York.