Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Paterson | 1 | 156,434 | 159,323 | -0.01% | 18,594 | 8.4 | City |
| Clifton | 2 | 88,276 | 90,019 | -0.21% | 7,829 | 11.3 | City |
| Passaic | 3 | 68,722 | 70,304 | -0.26% | 21,935 | 3.1 | City |
| Wayne township | 4 | 52,635 | 54,639 | -0.24% | 2,219 | 23.7 | Township |
| West Milford township | 5 | 24,290 | 24,778 | -0.21% | 319 | 76.1 | Township |
| Hawthorne borough | 6 | 19,718 | 19,566 | 1.14% | 5,943 | 3.3 | Borough |
| Little Falls township | 7 | 14,705 | 14,275 | 2.13% | 5,261 | 2.8 | Township |
| Woodland Park borough | 8 | 13,098 | 13,418 | -0.3% | 4,455 | 2.9 | Borough |
| Ringwood borough | 9 | 11,425 | 11,686 | -0.23% | 446 | 25.6 | Borough |
| Wanaque borough | 10 | 11,058 | 11,277 | 0.09% | 1,371 | 8.1 | Borough |
| Pompton Lakes borough | 11 | 10,852 | 11,095 | -0.2% | 3,758 | 2.9 | Borough |
| Totowa borough | 12 | 10,752 | 11,024 | -0.31% | 2,688 | 4.0 | Borough |
| Haledon borough | 13 | 8,807 | 9,022 | -0.31% | 7,249 | 1.2 | Borough |
| North Haledon borough | 14 | 8,605 | 8,904 | -0.32% | 2,484 | 3.5 | Borough |
| Bloomingdale borough | 15 | 7,579 | 7,757 | -0.25% | 861 | 8.8 | Borough |
| Prospect Park borough | 16 | 6,200 | 6,352 | -0.31% | 13,333 | 0.5 | Borough |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Paterson is the largest city in Passaic County.
Prospect Park borough is the smallest city in Passaic County.
There are 16 cities in Passaic County, New Jersey.