| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Jersey City | 1 | 303,303 | 291,955 | 0.43% | 20,566 | 15 | City |
| Bayonne | 2 | 75,475 | 71,604 | 0.98% | 12,966 | 6 | City |
| Union City | 3 | 66,937 | 68,112 | 0.42% | 52,010 | 1 | City |
| North Bergen | 4 | 61,787 | 62,921 | 0.49% | 12,042 | 5 | Township |
| Hoboken | 5 | 59,312 | 59,920 | 0.48% | 47,450 | 1 | City |
| West New York | 6 | 53,780 | 52,472 | 1.11% | 54,105 | 1 | Town |
| Kearny | 7 | 41,052 | 41,687 | 0.46% | 4,642 | 9 | Town |
| Secaucus | 8 | 22,723 | 21,970 | 0.37% | 3,900 | 6 | Town |
| Harrison | 9 | 22,181 | 19,483 | 0.34% | 18,316 | 1 | Town |
| Weehawken | 10 | 17,902 | 17,112 | 0.42% | 22,834 | 1 | Township |
| Harrison | 11 | 14,186 | 13,650 | 1.02% | 749 | 19 | Township |
| Guttenberg | 12 | 11,957 | 12,003 | 0.39% | 61,953 | 0 | Town |
| East Newark | 13 | 2,629 | 2,561 | 2.14% | 25,524 | 0 | Borough |
Jersey City is the largest city in Hudson County, with a population of 303,303.
East Newark is the smallest city in Hudson County, with a population of 2,629.
There are 13 cities in Hudson County, New Jersey.