23 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ramapo | 1 | 162,422 | 148,697 | 1.77% | 2,655 | 61 | Town |
| Clarkstown | 2 | 89,415 | 86,534 | 0.96% | 2,325 | 38 | Town |
| Orangetown | 3 | 50,449 | 48,437 | 1.26% | 2,097 | 24 | Town |
| Haverstraw | 4 | 40,230 | 38,944 | 0.95% | 1,806 | 22 | Town |
| Spring Valley | 5 | 33,968 | 32,975 | 0.49% | 16,916 | 2 | Village |
| Stony Point | 6 | 15,296 | 14,766 | 1.02% | 552 | 28 | Town |
| Haverstraw | 7 | 12,534 | 12,266 | 0.36% | 6,318 | 2 | Village |
| Suffern | 8 | 11,597 | 11,416 | 0.26% | 5,530 | 2 | Village |
| Chestnut Ridge | 9 | 10,884 | 10,470 | 0.64% | 2,198 | 5 | Village |
| West Haverstraw | 10 | 10,868 | 10,676 | 0.3% | 7,159 | 2 | Village |
| Airmont | 11 | 10,537 | 10,066 | 0.76% | 2,308 | 5 | Village |
| New Square | 12 | 10,113 | 9,693 | 0.7% | 27,556 | 0 | Village |
| Nyack | 13 | 7,435 | 7,237 | 0.45% | 9,656 | 1 | Village |
| Wesley Hills | 14 | 6,398 | 6,134 | 0.69% | 1,909 | 3 | Village |
| Kaser | 15 | 6,222 | 5,466 | 2.07% | 36,174 | 0 | Village |
| New Hempstead | 16 | 5,546 | 5,452 | 0.29% | 1,951 | 3 | Village |
| Montebello | 17 | 4,759 | 4,650 | 0.38% | 1,101 | 4 | Village |
| Pomona | 18 | 4,026 | 3,830 | 0.83% | 1,678 | 2 | Village |
| Sloatsburg | 19 | 3,094 | 3,025 | 0.39% | 1,238 | 2 | Village |
| Piermont | 20 | 2,564 | 2,512 | 0.35% | 3,810 | 1 | Village |
| Upper Nyack | 21 | 2,043 | 2,015 | 0.25% | 1,664 | 1 | Village |
| Hillburn | 22 | 942 | 921 | 0.43% | 422 | 2 | Village |
| Grand View-on-Hudson | 23 | 276 | 270 | 0.36% | 1,586 | 0 | Village |
Ramapo is the largest city in Rockland County, with a population of 162,422.
Grand View-on-Hudson is the smallest city in Rockland County, with a population of 276.
There are 23 cities in Rockland County, New York.