30 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Clifton Park | 1 | 37,991 | 38,037 | 0.24% | 788 | 48 | Town |
| Saratoga Springs | 2 | 28,788 | 28,551 | 0.16% | 1,026 | 28 | City |
| Halfmoon | 3 | 26,690 | 25,718 | 0.46% | 819 | 33 | Town |
| Wilton | 4 | 17,645 | 17,377 | 0.66% | 492 | 36 | Town |
| Malta | 5 | 17,539 | 17,145 | 0.07% | 628 | 28 | Town |
| Moreau | 6 | 16,824 | 16,268 | 0.38% | 401 | 42 | Town |
| Ballston | 7 | 13,482 | 11,880 | 3.25% | 456 | 30 | Town |
| Stillwater | 8 | 10,190 | 9,036 | 3.41% | 247 | 41 | Town |
| Greenfield | 9 | 8,088 | 8,004 | 0.32% | 120 | 67 | Town |
| Waterford | 10 | 8,082 | 8,211 | -0.2% | 1,231 | 7 | Town |
| Scotia | 11 | 7,335 | 7,262 | 0.19% | 4,345 | 2 | Village |
| Corinth | 12 | 6,631 | 6,512 | 0.02% | 117 | 57 | Town |
| Saratoga | 13 | 5,875 | 5,814 | 0.38% | 145 | 41 | Town |
| Northumberland | 14 | 5,191 | 5,236 | 0.08% | 161 | 32 | Town |
| Mechanicville | 15 | 5,063 | 5,162 | -0.39% | 6,035 | 1 | City |
| Ballston Spa | 16 | 4,883 | 5,116 | -0.95% | 3,050 | 2 | Village |
| Charlton | 17 | 4,377 | 4,333 | 0.6% | 134 | 33 | Town |
| South Glens Falls | 18 | 3,718 | 3,743 | -0.13% | 2,738 | 1 | Village |
| Galway | 19 | 3,515 | 3,522 | -0.03% | 80 | 44 | Town |
| Corinth | 20 | 2,658 | 2,557 | 0.76% | 2,491 | 1 | Village |
| Providence | 21 | 2,111 | 2,072 | 0.76% | 48 | 44 | Town |
| Waterford | 22 | 2,016 | 2,033 | -0.2% | 7,124 | 0 | Village |
| Hadley | 23 | 1,950 | 1,977 | -0.15% | 49 | 40 | Town |
| Stillwater | 24 | 1,759 | 1,756 | 0% | 1,398 | 1 | Village |
| Schuylerville | 25 | 1,351 | 1,366 | -0.22% | 2,535 | 1 | Village |
| Edinburg | 26 | 1,344 | 1,336 | 0.07% | 22 | 60 | Town |
| Round Lake | 27 | 865 | 813 | 1.17% | 771 | 1 | Village |
| Day | 28 | 819 | 825 | 0% | 13 | 64 | Town |
| Victory | 29 | 676 | 676 | 0% | 1,288 | 1 | Village |
| Galway | 30 | 156 | 160 | -0.64% | 609 | 0 | Village |
Clifton Park is the largest city in Saratoga County, with a population of 37,991.
Galway is the smallest city in Saratoga County, with a population of 156.
There are 30 cities in Saratoga County, New York.