34 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Kinderhook town | 1 | 7,919 | 8,202 | -1.35% | 249 | 31.81 | Town |
| Claverack town | 2 | 5,906 | 6,056 | -0.67% | 124 | 47.56 | Town |
| Hudson | 3 | 5,708 | 5,913 | -0.71% | 2,645 | 2.16 | City |
| Ghent town | 4 | 5,146 | 5,301 | -0.83% | 114 | 45.13 | Town |
| Chatham town | 5 | 3,950 | 4,101 | -0.95% | 74 | 53.23 | Town |
| Livingston town | 6 | 3,561 | 3,612 | -0.86% | 93 | 38.16 | Town |
| Copake town | 7 | 3,174 | 3,347 | -1.34% | 78 | 40.77 | Town |
| Stockport town | 8 | 2,530 | 2,670 | -1.36% | 217 | 11.65 | Town |
| New Lebanon town | 9 | 2,441 | 2,513 | -0.69% | 68 | 35.83 | Town |
| Lorenz Park | 10 | 1,990 | 1,992 | -0.25% | 1,115 | 1.78 | CDP |
| Clermont town | 11 | 1,953 | 2,055 | -1.31% | 109 | 18 | Town |
| Germantown town | 12 | 1,869 | 1,936 | -0.9% | 154 | 12.10 | Town |
| Stuyvesant town | 13 | 1,821 | 1,926 | -1.41% | 73 | 25 | Town |
| Hillsdale town | 14 | 1,759 | 1,829 | -1.12% | 37 | 47.73 | Town |
| Valatie | 15 | 1,749 | 1,649 | 1.16% | 1,395 | 1.25 | Village |
| Gallatin town | 16 | 1,596 | 1,623 | -0.56% | 41 | 39.11 | Town |
| Austerlitz town | 17 | 1,535 | 1,627 | -1.48% | 32 | 48.72 | Town |
| Chatham | 18 | 1,527 | 1,601 | -0.97% | 1,234 | 1.24 | Village |
| Canaan town | 19 | 1,506 | 1,570 | -1.12% | 41 | 36.65 | Town |
| Philmont | 20 | 1,460 | 1,517 | -0.75% | 1,201 | 1.22 | Village |
| Niverville | 21 | 1,413 | 1,414 | -1.19% | 492 | 2.87 | CDP |
| Ancram town | 22 | 1,393 | 1,440 | -0.85% | 33 | 42.48 | Town |
| Taghkanic town | 23 | 1,223 | 1,232 | -0.41% | 31 | 39.97 | Town |
| Stottville | 24 | 1,139 | 1,409 | -1.3% | 233 | 4.88 | CDP |
| Kinderhook | 25 | 1,136 | 1,178 | -0.7% | 540 | 2.10 | Village |
| Germantown | 26 | 1,124 | 1,084 | 1.72% | 308 | 3.65 | CDP |
| Claverack-Red Mills | 27 | 1,074 | 960 | 0.94% | 356 | 3.01 | CDP |
| Nassau Lake | 28 | 1,050 | 762 | 7.14% | 690 | 1.52 | CDP |
| Copake Lake | 29 | 816 | 761 | 0% | 86 | 9.50 | CDP |
| Taconic Shores | 30 | 815 | 854 | 7.1% | 980 | 0.83 | CDP |
| Ghent | 31 | 455 | 499 | -1.52% | 280 | 1.63 | CDP |
| Copake | 32 | 294 | 346 | 7.3% | 238 | 1.23 | CDP |
| Copake Falls | 33 | 224 | 181 | 7.18% | 1,000 | 0.22 | CDP |
| Upper Red Hook | 34 | 111 | 106 | 6.73% | 555 | 0.20 | CDP |
Kinderhook town is the largest city in Columbia County, with a population of 7,919.
Upper Red Hook is the smallest city in Columbia County.
There are 34 cities in Columbia County, New York.