| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Middletown | 1 | 67,204 | 66,946 | 0.1% | 1,641 | 41 | Township |
| Howell | 2 | 55,864 | 53,412 | 1.28% | 927 | 60 | Township |
| Marlboro | 3 | 42,578 | 41,547 | 0.77% | 1,403 | 30 | Township |
| Manalapan | 4 | 41,194 | 40,655 | 0.51% | 1,344 | 31 | Township |
| Freehold | 5 | 36,107 | 35,265 | 0.15% | 934 | 39 | Township |
| Long Branch | 6 | 33,370 | 31,665 | 0.15% | 6,512 | 5 | City |
| Neptune | 7 | 28,310 | 28,118 | 0.13% | 3,484 | 8 | Township |
| Ocean | 8 | 28,124 | 27,682 | 0.13% | 2,588 | 11 | Township |
| Wall | 9 | 26,739 | 26,478 | -0.05% | 872 | 31 | Township |
| Hazlet | 10 | 20,789 | 20,091 | 0.22% | 3,733 | 6 | Township |
| Aberdeen | 11 | 19,663 | 19,290 | 0.66% | 3,614 | 5 | Township |
| Tinton Falls | 12 | 19,641 | 19,103 | 0.52% | 1,269 | 15 | Borough |
| Holmdel | 13 | 17,564 | 17,371 | 0.17% | 984 | 18 | Township |
| Asbury Park | 14 | 15,758 | 15,169 | 0.81% | 11,020 | 1 | City |
| Eatontown | 15 | 13,643 | 13,545 | 0.26% | 2,336 | 6 | Borough |
| Red Bank | 16 | 12,944 | 12,903 | 0.37% | 7,414 | 2 | Borough |
| Freehold | 17 | 12,568 | 12,512 | 0.05% | 6,505 | 2 | Borough |
| Millstone | 18 | 10,427 | 10,350 | 0.14% | 285 | 37 | Township |
| Colts Neck | 19 | 10,001 | 9,930 | 0.12% | 326 | 31 | Township |
| Keansburg | 20 | 9,952 | 9,738 | 1.36% | 9,284 | 1 | Borough |
| Matawan | 21 | 9,780 | 9,541 | 0.12% | 4,316 | 2 | Borough |
| West Long Branch | 22 | 8,637 | 8,584 | 0.14% | 3,024 | 3 | Borough |
| Keyport | 23 | 7,265 | 7,194 | 0.41% | 5,261 | 1 | Borough |
| Upper Freehold | 24 | 7,250 | 7,261 | -0.01% | 156 | 46 | Township |
| Rumson | 25 | 7,117 | 7,318 | -0.56% | 1,405 | 5 | Borough |
| Oceanport | 26 | 6,684 | 6,144 | 2.2% | 2,107 | 3 | Borough |
| Little Silver | 27 | 6,133 | 6,141 | 0.15% | 2,261 | 3 | Borough |
| Fair Haven | 28 | 6,067 | 6,248 | -0.48% | 3,809 | 2 | Borough |
| Manasquan | 29 | 5,970 | 5,931 | 0.27% | 4,326 | 1 | Borough |
| Belmar | 30 | 5,849 | 5,891 | -0.07% | 5,597 | 1 | Borough |
| Union Beach | 31 | 5,717 | 5,702 | 0.16% | 3,208 | 2 | Borough |
| Brielle | 32 | 4,974 | 4,969 | 0.3% | 2,833 | 2 | Borough |
| Spring Lake Heights | 33 | 4,868 | 4,880 | 0% | 3,759 | 1 | Borough |
| Neptune City | 34 | 4,594 | 4,586 | 0.07% | 5,127 | 1 | Borough |
| Atlantic Highlands | 35 | 4,424 | 4,414 | 0.16% | 3,500 | 1 | Borough |
| Highlands | 36 | 4,352 | 4,616 | 0.05% | 5,881 | 1 | Borough |
| Shrewsbury | 37 | 4,184 | 4,170 | 0.14% | 1,936 | 2 | Borough |
| Bradley Beach | 38 | 4,177 | 4,174 | 0.34% | 6,848 | 1 | Borough |
| Monmouth Beach | 39 | 3,228 | 3,175 | 0.06% | 3,098 | 1 | Borough |
| Spring Lake | 40 | 2,756 | 2,783 | -0.47% | 2,069 | 1 | Borough |
| Englishtown | 41 | 2,407 | 2,401 | 0% | 4,223 | 1 | Borough |
| Avon-by-the-Sea | 42 | 1,954 | 1,927 | 0.1% | 4,587 | 0 | Borough |
| Sea Girt | 43 | 1,868 | 1,868 | -0.32% | 1,762 | 1 | Borough |
| Allentown | 44 | 1,746 | 1,736 | 0.29% | 2,930 | 1 | Borough |
| Lake Como | 45 | 1,679 | 1,696 | 0.12% | 6,663 | 0 | Borough |
| Farmingdale | 46 | 1,505 | 1,501 | 0.2% | 2,894 | 1 | Borough |
| Sea Bright | 47 | 1,463 | 1,455 | 0.21% | 2,032 | 1 | Borough |
| Shrewsbury | 48 | 1,079 | 1,078 | 0.09% | 10,899 | 0 | Township |
| Deal | 49 | 895 | 898 | 0.11% | 756 | 1 | Borough |
| Interlaken | 50 | 828 | 824 | 0.24% | 2,502 | 0 | Borough |
| Roosevelt | 51 | 808 | 810 | 0.12% | 416 | 2 | Borough |
| Allenhurst | 52 | 471 | 469 | 0.21% | 1,884 | 0 | Borough |
| Loch Arbour village | 53 | 228 | 230 | 0% | 2,621 | 0 | Township |
Middletown is the largest city in Monmouth County, with a population of 67,204.
Loch Arbour village is the smallest city in Monmouth County, with a population of 228.
There are 53 cities in Monmouth County, New Jersey.