46 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Jersey City | 1 | 307,433 | 292,749 | 1.52% | 20,846 | 15 | City |
| Jersey City | 2 | 307,433 | 291,960 | 1.52% | 20,846 | 15 | City |
| Jersey City | 3 | 305,540 | 292,749 | 0.9% | 20,717 | 15 | City |
| Jersey City | 4 | 305,540 | 291,960 | 0.9% | 20,717 | 15 | City |
| Bayonne | 5 | 77,174 | 71,686 | 3.54% | 13,258 | 6 | City |
| Bayonne | 6 | 77,174 | 71,603 | 3.54% | 13,258 | 6 | City |
| Bayonne | 7 | 75,264 | 71,686 | 0.98% | 12,930 | 6 | City |
| Bayonne | 8 | 75,264 | 71,603 | 0.98% | 12,930 | 6 | City |
| Union City | 9 | 67,921 | 68,634 | 1.5% | 52,775 | 1 | City |
| Union City | 10 | 67,921 | 68,138 | 1.5% | 52,775 | 1 | City |
| Union City | 11 | 66,613 | 68,634 | -0.46% | 51,758 | 1 | City |
| Union City | 12 | 66,613 | 68,138 | -0.46% | 51,758 | 1 | City |
| North Bergen | 13 | 62,610 | 63,372 | 1.53% | 12,202 | 5 | Township |
| North Bergen | 14 | 62,610 | 62,913 | 1.53% | 12,202 | 5 | Township |
| Hoboken | 15 | 60,034 | 60,057 | 1.5% | 48,027 | 1 | City |
| Hoboken | 16 | 60,034 | 59,913 | 1.5% | 48,027 | 1 | City |
| Hoboken | 17 | 58,958 | 60,057 | -0.32% | 47,166 | 1 | City |
| Hoboken | 18 | 58,958 | 59,913 | -0.32% | 47,166 | 1 | City |
| West New York | 19 | 54,114 | 52,835 | 2.15% | 54,441 | 1 | Town |
| West New York | 20 | 54,114 | 52,475 | 2.15% | 54,441 | 1 | Town |
| West New York | 21 | 53,100 | 52,835 | 0.24% | 53,421 | 1 | Town |
| West New York | 22 | 53,100 | 52,475 | 0.24% | 53,421 | 1 | Town |
| Kearny | 23 | 41,496 | 42,004 | 1.54% | 4,692 | 9 | Town |
| Kearny | 24 | 41,496 | 41,710 | 1.54% | 4,692 | 9 | Town |
| Kearny | 25 | 40,655 | 42,004 | -0.52% | 4,597 | 9 | Town |
| Kearny | 26 | 40,655 | 41,710 | -0.52% | 4,597 | 9 | Town |
| Secaucus | 27 | 23,948 | 22,187 | 5.45% | 4,111 | 6 | Town |
| Secaucus | 28 | 23,948 | 22,038 | 5.45% | 4,111 | 6 | Town |
| Harrison | 29 | 23,377 | 19,460 | 5.39% | 19,304 | 1 | Town |
| Harrison | 30 | 23,377 | 19,482 | 5.39% | 19,304 | 1 | Town |
| Secaucus | 31 | 22,878 | 22,187 | 0.74% | 3,927 | 6 | Town |
| Secaucus | 32 | 22,878 | 22,038 | 0.74% | 3,927 | 6 | Town |
| Harrison | 33 | 22,857 | 19,460 | 3.04% | 18,874 | 1 | Town |
| Harrison | 34 | 22,857 | 19,482 | 3.04% | 18,874 | 1 | Town |
| Weehawken | 35 | 18,152 | 17,206 | 1.54% | 23,153 | 1 | Township |
| Weehawken | 36 | 18,152 | 17,113 | 1.54% | 23,153 | 1 | Township |
| Harrison | 37 | 14,018 | 13,642 | 0.68% | 740 | 19 | Township |
| Harrison | 38 | 14,018 | 13,652 | 0.68% | 740 | 19 | Township |
| Guttenberg | 39 | 12,197 | 12,086 | 2.11% | 63,197 | 0 | Town |
| Guttenberg | 40 | 12,197 | 12,001 | 2.11% | 63,197 | 0 | Town |
| Guttenberg | 41 | 11,931 | 12,086 | -0.12% | 61,819 | 0 | Town |
| Guttenberg | 42 | 11,931 | 12,001 | -0.12% | 61,819 | 0 | Town |
| East Newark | 43 | 2,594 | 2,579 | 2.17% | 25,184 | 0 | Borough |
| East Newark | 44 | 2,594 | 2,563 | 2.17% | 25,184 | 0 | Borough |
| East Newark | 45 | 2,533 | 2,579 | -0.24% | 24,592 | 0 | Borough |
| East Newark | 46 | 2,533 | 2,563 | -0.24% | 24,592 | 0 | Borough |
Jersey City is the largest city in Hudson County, with a population of 307,433.
East Newark is the smallest city in Hudson County, with a population of 2,533.
There are 46 cities in Hudson County, New Jersey.