There are 19 cities in Essex County, New Jersey.
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 | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Newark | 1 | New Jersey | 303,065 | 310,645 | -0.62% | 12,552 | 24.14 |
| Clifton | 2 | New Jersey | 87,941 | 90,019 | -0.59% | 7,800 | 11.28 |
| East Orange | 3 | New Jersey | 69,616 | 69,375 | 0.09% | 17,723 | 3.93 |
| Short Hills | 4 | New Jersey | 14,344 | 13,700 | -0.36% | 2,729 | 5.26 |
| Upper Montclair | 5 | New Jersey | 13,257 | 11,439 | 3.17% | 5,570 | 2.38 |
| Brookdale | 6 | New Jersey | 10,668 | 9,604 | 1.7% | 6,655 | 1.60 |
| Caldwell | 7 | New Jersey | 8,783 | 8,986 | -0.58% | 7,456 | 1.18 |
| Watsessing | 8 | New Jersey | 8,050 | 7,094 | 2.09% | 13,005 | 0.62 |
| Glen Ridge | 9 | New Jersey | 8,017 | 7,757 | 0.82% | 6,288 | 1.27 |
| North Caldwell | 10 | New Jersey | 6,541 | 6,672 | -0.5% | 2,132 | 3.07 |
| Roseland | 11 | New Jersey | 6,134 | 6,270 | -0.55% | 1,695 | 3.62 |
| Vauxhall | 12 | New Jersey | 5,243 | 5,677 | -0.83% | 8,902 | 0.59 |
| Ampere North | 13 | New Jersey | 5,183 | 5,145 | 0.19% | 18,644 | 0.28 |
| Silver Lake | 14 | New Jersey | 4,844 | 3,970 | 4.74% | 14,859 | 0.33 |
| Great Notch | 15 | New Jersey | 3,936 | 4,277 | -1.03% | 3,968 | 0.99 |
| Pleasantdale | 16 | New Jersey | 2,458 | 2,466 | -0.08% | 3,111 | 0.79 |
| Montclair State University | 17 | New Jersey | 2,143 | 1,285 | 11.15% | 6,020 | 0.36 |
| Essex Fells | 18 | New Jersey | 2,113 | 2,212 | -1.17% | 1,501 | 1.41 |
| Llewellyn Park | 19 | New Jersey | 803 | 381 | 8.22% | 1,125 | 0.71 |
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.
Newark is the largest city in Essex County.
Llewellyn Park is the smallest city in Essex County.
There are 19 cities in Essex County, New Jersey.