54 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Vineland | 1 | 62,928 | 60,641 | 1.38% | 920 | 68 | City |
| Vineland | 2 | 62,427 | 60,641 | 0.58% | 913 | 68 | City |
| Bridgeton | 3 | 28,514 | 27,167 | 2.86% | 4,578 | 6 | City |
| Millville | 4 | 28,127 | 27,415 | 1.04% | 670 | 42 | City |
| Millville | 5 | 27,943 | 27,415 | 0.38% | 665 | 42 | City |
| Bridgeton | 6 | 27,860 | 27,167 | 0.5% | 4,473 | 6 | City |
| Upper Deerfield | 7 | 8,069 | 7,622 | 1.14% | 258 | 31 | Township |
| Greenwich | 8 | 5,542 | 5,468 | 0.25% | 524 | 11 | Township |
| Maurice River | 9 | 5,236 | 6,192 | 1% | 56 | 93 | Township |
| Greenwich | 10 | 5,067 | 4,917 | 0.68% | 564 | 9 | Township |
| Commercial | 11 | 4,773 | 4,658 | 1.04% | 150 | 32 | Township |
| Deerfield | 12 | 3,262 | 3,128 | 1.43% | 194 | 17 | Township |
| Lawrence | 13 | 3,164 | 3,075 | 1.09% | 86 | 37 | Township |
| Greenwich | 14 | 2,894 | 2,747 | 0.35% | 3,191 | 1 | CDP |
| Laurel Lake | 15 | 2,185 | 2,661 | -2.41% | 1,257 | 2 | CDP |
| Gouldtown | 16 | 2,166 | 1,805 | 7.12% | 766 | 3 | CDP |
| West Park | 17 | 1,950 | 1,566 | 7.14% | 1,506 | 1 | CDP |
| Centre Grove | 18 | 1,825 | 1,158 | 7.16% | 260 | 7 | CDP |
| Port Norris | 19 | 1,794 | 1,652 | 1.53% | 281 | 6 | CDP |
| Silver Lake | 20 | 1,791 | 1,370 | 7.12% | 1,252 | 1 | CDP |
| Rosenhayn | 21 | 1,611 | 1,321 | 2.22% | 609 | 3 | CDP |
| Olivet | 22 | 1,567 | 1,322 | 0.71% | 629 | 2 | CDP |
| Seabrook Farms | 23 | 1,438 | 1,602 | -0.21% | 664 | 2 | CDP |
| Downe | 24 | 1,413 | 1,395 | 0.86% | 29 | 48 | Township |
| Stow Creek | 25 | 1,361 | 1,313 | 1.42% | 75 | 18 | Township |
| Carlls Corner | 26 | 1,118 | 577 | 7.19% | 670 | 2 | CDP |
| Sunset Lake | 27 | 1,061 | 674 | 7.17% | 1,774 | 1 | CDP |
| Fairton | 28 | 845 | 978 | -3.21% | 295 | 3 | CDP |
| Greenwich | 29 | 777 | 766 | 0.52% | 44 | 18 | Township |
| Mauricetown | 30 | 680 | 486 | 7.09% | 322 | 2 | CDP |
| Newport | 31 | 661 | 425 | 7.13% | 311 | 2 | CDP |
| Dividing Creek | 32 | 655 | 453 | 7.2% | 536 | 1 | CDP |
| Laurel Heights | 33 | 602 | 540 | 7.12% | 2,333 | 0 | CDP |
| Delmont | 34 | 488 | 283 | 7.25% | 452 | 1 | CDP |
| Cedarville | 35 | 464 | 930 | -4.13% | 207 | 2 | CDP |
| Shiloh | 36 | 457 | 443 | 0.88% | 380 | 1 | Borough |
| Shiloh | 37 | 455 | 443 | 0.44% | 378 | 1 | Borough |
| Leesburg | 38 | 400 | 414 | 7.24% | 227 | 2 | CDP |
| Port Elizabeth | 39 | 365 | 189 | 7.04% | 244 | 1 | CDP |
| Heislerville | 40 | 316 | 218 | 7.12% | 440 | 1 | CDP |
| Cumberland-Hesstown | 41 | 259 | 244 | 7.02% | 102 | 3 | CDP |
| Lakeside-Beebe Run | 42 | 220 | 320 | 7.32% | 789 | 0 | CDP |
| Greenwich | 43 | 209 | 133 | 7.18% | 249 | 1 | CDP |
| Roadstown | 44 | 205 | 138 | 7.33% | 245 | 1 | CDP |
| Dorchester | 45 | 204 | 222 | 7.37% | 417 | 0 | CDP |
| Dutch Neck | 46 | 148 | 82 | 7.25% | 321 | 0 | CDP |
| Othello | 47 | 138 | 115 | 7.81% | 111 | 1 | CDP |
| Arrowhead Lake | 48 | 129 | 97 | 7.5% | 581 | 0 | CDP |
| Fortescue | 49 | 109 | 112 | 6.86% | 376 | 0 | CDP |
| Seeley | 50 | 100 | 59 | 7.53% | 179 | 1 | CDP |
| Sheppards Mill | 51 | 99 | 65 | 7.61% | 307 | 0 | CDP |
| Deerfield Street | 52 | 62 | 275 | 6.9% | 35 | 2 | CDP |
| Gandys Beach | 53 | 38 | 40 | 8.57% | 400 | 0 | CDP |
| Money Island | 54 | 13 | 18 | 8.33% | 80 | 0 | CDP |
Vineland is the largest city in Cumberland County, with a population of 62,928.
Money Island is the smallest city in Cumberland County, with a population of 13.
There are 54 cities in Cumberland County, New Jersey.