54 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Vineland city | 1 | 61,455 | 60,644 | 0.54% | 898 | 68.40 | City |
| Vineland | 2 | 60,899 | 60,644 | 0.08% | 890 | 68.40 | City |
| Bridgeton city | 3 | 27,475 | 27,160 | 1.31% | 4,412 | 6.23 | City |
| Millville city | 4 | 27,472 | 27,413 | 0.21% | 654 | 42 | City |
| Millville | 5 | 27,321 | 27,413 | -0.07% | 651 | 42 | City |
| Bridgeton | 6 | 26,498 | 27,160 | -0.5% | 4,255 | 6.23 | City |
| Upper Deerfield township | 7 | 7,904 | 7,622 | 0.47% | 253 | 31.24 | Township |
| Greenwich township | 8 | 5,521 | 5,467 | 0.16% | 522 | 10.58 | Township |
| Maurice River township | 9 | 5,383 | 6,196 | 2.53% | 58 | 93.17 | Township |
| Greenwich township | 10 | 5,035 | 4,918 | 0.42% | 560 | 8.99 | Township |
| Commercial township | 11 | 4,665 | 4,658 | 0.24% | 146 | 31.91 | Township |
| Deerfield township | 12 | 3,179 | 3,126 | 0.51% | 189 | 16.84 | Township |
| Lawrence township | 13 | 3,087 | 3,074 | 0.23% | 84 | 36.92 | Township |
| Greenwich | 14 | 2,894 | 2,747 | 0.35% | 3,191 | 0.91 | CDP |
| Laurel Lake | 15 | 2,185 | 2,661 | -2.41% | 1,257 | 1.74 | CDP |
| Gouldtown | 16 | 2,166 | 1,805 | 7.12% | 766 | 2.83 | CDP |
| West Park | 17 | 1,950 | 1,566 | 7.14% | 1,506 | 1.29 | CDP |
| Centre Grove | 18 | 1,825 | 1,158 | 7.16% | 260 | 7.02 | CDP |
| Port Norris | 19 | 1,794 | 1,652 | 1.53% | 281 | 6.38 | CDP |
| Silver Lake | 20 | 1,791 | 1,370 | 7.12% | 1,252 | 1.43 | CDP |
| Rosenhayn | 21 | 1,611 | 1,321 | 2.22% | 609 | 2.65 | CDP |
| Olivet | 22 | 1,567 | 1,322 | 0.71% | 629 | 2.49 | CDP |
| Seabrook Farms | 23 | 1,438 | 1,602 | -0.21% | 664 | 2.17 | CDP |
| Downe township | 24 | 1,378 | 1,397 | -0.14% | 28 | 48.40 | Township |
| Stow Creek township | 25 | 1,327 | 1,316 | 0.38% | 73 | 18.27 | Township |
| Carlls Corner | 26 | 1,118 | 577 | 7.19% | 670 | 1.67 | CDP |
| Sunset Lake | 27 | 1,061 | 674 | 7.17% | 1,774 | 0.60 | CDP |
| Fairton | 28 | 845 | 978 | -3.21% | 295 | 2.87 | CDP |
| Greenwich township | 29 | 765 | 766 | 0.13% | 43 | 17.77 | Township |
| Mauricetown | 30 | 680 | 486 | 7.09% | 322 | 2.11 | CDP |
| Newport | 31 | 661 | 425 | 7.13% | 311 | 2.13 | CDP |
| Dividing Creek | 32 | 655 | 453 | 7.2% | 536 | 1.22 | CDP |
| Laurel Heights | 33 | 602 | 540 | 7.12% | 2,333 | 0.26 | CDP |
| Delmont | 34 | 488 | 283 | 7.25% | 452 | 1.08 | CDP |
| Cedarville | 35 | 464 | 930 | -4.13% | 207 | 2.24 | CDP |
| Shiloh borough | 36 | 449 | 441 | 0.67% | 373 | 1.20 | Borough |
| Shiloh | 37 | 444 | 441 | 0.23% | 369 | 1.20 | Borough |
| Leesburg | 38 | 400 | 414 | 7.24% | 227 | 1.76 | CDP |
| Port Elizabeth | 39 | 365 | 189 | 7.04% | 244 | 1.50 | CDP |
| Heislerville | 40 | 316 | 218 | 7.12% | 440 | 0.72 | CDP |
| Cumberland-Hesstown | 41 | 259 | 244 | 7.02% | 102 | 2.55 | CDP |
| Lakeside-Beebe Run | 42 | 220 | 320 | 7.32% | 789 | 0.28 | CDP |
| Greenwich | 43 | 209 | 133 | 7.18% | 249 | 0.84 | CDP |
| Roadstown | 44 | 205 | 138 | 7.33% | 245 | 0.84 | CDP |
| Dorchester | 45 | 204 | 222 | 7.37% | 417 | 0.49 | CDP |
| Dutch Neck | 46 | 148 | 82 | 7.25% | 321 | 0.46 | CDP |
| Othello | 47 | 138 | 115 | 7.81% | 111 | 1.24 | CDP |
| Arrowhead Lake | 48 | 129 | 97 | 7.5% | 581 | 0.22 | CDP |
| Fortescue | 49 | 109 | 112 | 6.86% | 376 | 0.29 | CDP |
| Seeley | 50 | 100 | 59 | 7.53% | 179 | 0.56 | CDP |
| Sheppards Mill | 51 | 99 | 65 | 7.61% | 307 | 0.32 | CDP |
| Deerfield Street | 52 | 62 | 275 | 6.9% | 35 | 1.76 | CDP |
| Gandys Beach | 53 | 38 | 40 | 8.57% | 400 | 0.10 | CDP |
| Money Island | 54 | 13 | 18 | 8.33% | 80 | 0.16 | CDP |
Vineland city is the largest city in Cumberland County, with a population of 61,455.
Money Island is the smallest city in Cumberland County.
There are 54 cities in Cumberland County, New Jersey.