23 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ramapo | 1 | 159,598 | 148,697 | 1.8% | 2,608 | 61 | Town |
| Clarkstown | 2 | 88,565 | 86,534 | 0.97% | 2,302 | 38 | Town |
| Orangetown | 3 | 49,821 | 48,437 | 1.28% | 2,071 | 24 | Town |
| Haverstraw | 4 | 39,853 | 38,944 | 0.96% | 1,789 | 22 | Town |
| Spring Valley | 5 | 33,802 | 32,975 | 0.49% | 16,834 | 2 | Village |
| Stony Point | 6 | 15,141 | 14,766 | 1.03% | 547 | 28 | Town |
| Haverstraw | 7 | 12,489 | 12,266 | 0.35% | 6,295 | 2 | Village |
| Suffern | 8 | 11,567 | 11,416 | 0.26% | 5,516 | 2 | Village |
| West Haverstraw | 9 | 10,836 | 10,676 | 0.3% | 7,138 | 2 | Village |
| Chestnut Ridge | 10 | 10,815 | 10,470 | 0.64% | 2,184 | 5 | Village |
| Airmont | 11 | 10,458 | 10,066 | 0.75% | 2,291 | 5 | Village |
| New Square | 12 | 10,043 | 9,693 | 0.7% | 27,365 | 0 | Village |
| Nyack | 13 | 7,402 | 7,237 | 0.45% | 9,613 | 1 | Village |
| Wesley Hills | 14 | 6,354 | 6,134 | 0.7% | 1,896 | 3 | Village |
| Kaser | 15 | 6,096 | 5,466 | 2.11% | 35,442 | 0 | Village |
| New Hempstead | 16 | 5,530 | 5,452 | 0.27% | 1,946 | 3 | Village |
| Montebello | 17 | 4,741 | 4,650 | 0.38% | 1,097 | 4 | Village |
| Pomona | 18 | 3,993 | 3,830 | 0.81% | 1,664 | 2 | Village |
| Sloatsburg | 19 | 3,082 | 3,025 | 0.36% | 1,233 | 2 | Village |
| Piermont | 20 | 2,555 | 2,512 | 0.31% | 3,796 | 1 | Village |
| Upper Nyack | 21 | 2,038 | 2,015 | 0.2% | 1,660 | 1 | Village |
| Hillburn | 22 | 938 | 921 | 0.32% | 420 | 2 | Village |
| Grand View-on-Hudson | 23 | 275 | 270 | 0.36% | 1,580 | 0 | Village |
Ramapo is the largest city in Rockland County, with a population of 159,598.
Grand View-on-Hudson is the smallest city in Rockland County, with a population of 275.
There are 23 cities in Rockland County, New York.