There are 60 cities in Somerset 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) |
|---|---|---|---|---|---|---|---|
| Plainfield | 1 | New Jersey | 54,780 | 54,340 | 0.2% | 9,193 | 5.96 |
| Princeton | 2 | New Jersey | 30,182 | 30,610 | -0.35% | 1,682 | 17.95 |
| Somerset | 3 | New Jersey | 24,373 | 24,119 | 0.26% | 3,851 | 6.33 |
| South Plainfield | 4 | New Jersey | 24,079 | 24,286 | -0.21% | 2,902 | 8.30 |
| North Plainfield | 5 | New Jersey | 22,505 | 22,748 | -0.27% | 8,017 | 2.81 |
| Hillsborough | 6 | New Jersey | 21,049 | 20,539 | -1.9% | 2,630 | 8 |
| Somerville | 7 | New Jersey | 14,696 | 12,359 | 4.14% | 6,286 | 2.34 |
| Bradley Gardens | 8 | New Jersey | 13,976 | 14,714 | -1.3% | 3,112 | 4.49 |
| Martinsville | 9 | New Jersey | 13,150 | 11,384 | 3.06% | 1,082 | 12.15 |
| Franklin Park | 10 | New Jersey | 12,903 | 12,738 | -1.98% | 4,953 | 2.60 |
| Bound Brook | 11 | New Jersey | 12,510 | 11,954 | 1.12% | 7,532 | 1.66 |
| The Hills | 12 | New Jersey | 10,872 | 11,002 | -0.29% | 3,835 | 2.83 |
| East Franklin | 13 | New Jersey | 10,754 | 7,864 | 7.21% | 9,875 | 1.09 |
| Kendall Park | 14 | New Jersey | 10,752 | 9,852 | 0.6% | 2,844 | 3.78 |
| Manville | 15 | New Jersey | 10,728 | 10,932 | -0.47% | 4,544 | 2.36 |
| Blackwells Mills | 16 | New Jersey | 10,585 | 9,509 | 2.61% | 1,378 | 7.68 |
| Monmouth Junction | 17 | New Jersey | 9,794 | 8,911 | 0.22% | 2,236 | 4.38 |
| Raritan | 18 | New Jersey | 8,622 | 7,820 | 2.38% | 4,328 | 1.99 |
| Dunellen | 19 | New Jersey | 8,362 | 7,617 | 2.27% | 7,874 | 1.06 |
| Basking Ridge | 20 | New Jersey | 7,897 | 7,913 | -0.05% | 1,170 | 6.75 |
| Bernardsville | 21 | New Jersey | 7,822 | 7,881 | -0.19% | 609 | 12.84 |
| Green Knoll | 22 | New Jersey | 6,828 | 6,442 | 1.44% | 1,473 | 4.63 |
| Bridgewater Center | 23 | New Jersey | 6,496 | 5,386 | 3.09% | 1,114 | 5.83 |
| Watchung | 24 | New Jersey | 6,433 | 6,437 | -0.02% | 1,069 | 6.02 |
| Heathcote | 25 | New Jersey | 6,207 | 7,389 | -4.36% | 1,980 | 3.13 |
| Belle Mead | 26 | New Jersey | 6,093 | 5,492 | 1.89% | 1,512 | 4.03 |
| Finderne | 27 | New Jersey | 5,987 | 5,775 | 0.89% | 1,463 | 4.09 |
| Lyons | 28 | New Jersey | 5,712 | 5,331 | 1.13% | 1,483 | 3.85 |
| Franklin Center | 29 | New Jersey | 5,630 | 5,536 | 0.43% | 854 | 6.60 |
| Neshanic Station | 30 | New Jersey | 5,411 | 5,223 | 0.88% | 577 | 9.38 |
| South Bound Brook | 31 | New Jersey | 4,797 | 4,851 | -0.29% | 7,437 | 0.65 |
| Six Mile Run | 32 | New Jersey | 3,638 | 3,432 | 1.45% | 487 | 7.47 |
| Peapack Gladstone | 33 | New Jersey | 2,533 | 2,552 | -0.2% | 442 | 5.73 |
| Weston | 34 | New Jersey | 2,280 | 1,959 | 3.07% | 1,637 | 1.39 |
| Ten Mile Run | 35 | New Jersey | 2,161 | 1,801 | -1.82% | 851 | 2.54 |
| Princeton Junction | 36 | New Jersey | 2,055 | 1,989 | 0.83% | 1,127 | 1.82 |
| Middlebush | 37 | New Jersey | 1,984 | 2,737 | -7.42% | 997 | 1.99 |
| Voorhees | 38 | New Jersey | 1,910 | 1,686 | 3.02% | 2,660 | 0.72 |
| Hopewell | 39 | New Jersey | 1,892 | 1,899 | -0.11% | 2,613 | 0.72 |
| Bedminster | 40 | New Jersey | 1,662 | 1,110 | 9.05% | 358 | 4.65 |
| Kingston | 41 | New Jersey | 1,615 | 963 | 11.23% | 862 | 1.87 |
| Liberty Corner | 42 | New Jersey | 1,478 | 2,040 | -8.65% | 769 | 1.92 |
| Griggstown | 43 | New Jersey | 1,346 | 858 | 9.97% | 551 | 2.44 |
| Flagtown | 44 | New Jersey | 1,327 | 967 | 7.28% | 777 | 1.71 |
| Far Hills | 45 | New Jersey | 911 | 922 | -0.33% | 188 | 4.85 |
| New Vernon | 46 | New Jersey | 887 | 851 | 1.03% | 250 | 3.55 |
| Rocky Hill | 47 | New Jersey | 739 | 741 | -0.14% | 1,211 | 0.61 |
| East Millstone | 48 | New Jersey | 527 | 693 | -1.31% | 236 | 2.23 |
| East Rocky Hill | 49 | New Jersey | 487 | 335 | 8.46% | 117 | 4.17 |
| Neshanic | 50 | New Jersey | 476 | 584 | -5.37% | 133 | 3.57 |
| Pluckemin | 51 | New Jersey | 446 | 389 | 2.06% | 644 | 0.69 |
| Millstone | 52 | New Jersey | 444 | 450 | -0.45% | 652 | 0.68 |
| Pottersville | 53 | New Jersey | 436 | 441 | 5.83% | 478 | 0.91 |
| Pleasant Plains | 54 | New Jersey | 423 | 627 | -10.76% | 132 | 3.21 |
| Harlingen | 55 | New Jersey | 397 | 481 | -3.87% | 493 | 0.81 |
| Lamington | 56 | New Jersey | 155 | 46 | -14.84% | 36 | 4.33 |
| Skillman | 57 | New Jersey | 131 | 476 | -38.78% | 89 | 1.47 |
| Blawenburg | 58 | New Jersey | 125 | 99 | 5.93% | 206 | 0.61 |
| Zarephath | 59 | New Jersey | 54 | 94 | -15.63% | 134 | 0.40 |
| Clyde | 60 | New Jersey | 0 | 212 | 0% | 0 | 0.38 |
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.
Plainfield is the largest city in Somerset County.
Clyde is the smallest city in Somerset County.
There are 60 cities in Somerset County, New Jersey.