All Delaware Cities by Population 2022
| Rank | City | 2022 Pop. | 2020 Census | Change (Since 2010) | Density (mi) | Area (mi) |
| 1 | 70,908 | 70,898 | 0.01% | 6,502.902 | 10.904 | |
| 2 | 40,075 | 39,403 | 1.71% | 1,693.32 | 23.667 | |
| 3 | 30,431 | 30,601 | -0.56% | 3,311.289 | 9.19 | |
| 4 | 24,056 | 23,192 | 3.73% | 2,037.091 | 11.809 | |
| 5 | 23,798 | 23,060 | 3.2% | 4,166.508 | 5.712 | |
| 6 | 13,468 | 13,478 | -0.07% | 1,341.295 | 10.041 | |
| 7 | 13,455 | 12,883 | 4.44% | 2,142.582 | 6.28 | |
| 8 | 11,516 | 11,190 | 2.91% | 1,178.231 | 9.774 | |
| 9 | 10,223 | 9,895 | 3.31% | 4,754.61 | 2.15 | |
| 10 | 8,163 | 7,957 | 2.59% | 1,607.317 | 5.079 | |
| 11 | 7,461 | 6,863 | 8.71% | 1,277.628 | 5.84 | |
| 12 | 7,276 | 7,134 | 1.99% | 1,448.89 | 5.022 | |
| 13 | 6,249 | 6,229 | 0.32% | 6,208.775 | 1.006 | |
| 14 | 5,605 | 5,551 | 0.97% | 1,662.55 | 3.371 | |
| 15 | 4,169 | 3,961 | 5.25% | 2,183.813 | 1.909 | |
| 16 | 3,897 | 3,865 | 0.83% | 1,404.883 | 2.774 | |
| 17 | 3,816 | 3,774 | 1.11% | 1,401.443 | 2.723 | |
| 18 | 3,765 | 3,715 | 1.35% | 1,002.294 | 3.756 | |
| 19 | 3,435 | 3,291 | 4.38% | 1,920.809 | 1.788 | |
| 20 | 3,415 | 3,303 | 3.39% | 822.608 | 4.151 | |
| 21 | 3,260 | 3,104 | 5.03% | 1,187.789 | 2.745 | |
| 22 | 3,020 | 2,878 | 4.93% | 856.08 | 3.528 | |
| 23 | 2,851 | 2,717 | 4.93% | 2,695.081 | 1.058 | |
| 24 | 2,786 | 2,636 | 5.69% | 1,005.838 | 2.77 | |
| 25 | 2,672 | 2,568 | 4.05% | 554.179 | 4.822 | |
| 26 | 2,113 | 2,027 | 4.24% | 1,111.947 | 1.9 | |
| 27 | 2,081 | 1,825 | 14.03% | 815.543 | 2.552 | |
| 28 | 2,031 | 1,923 | 5.62% | 1,105.133 | 1.838 | |
| 29 | 1,923 | 1,885 | 2.02% | 1,019.207 | 1.887 | |
| 30 | 1,754 | 1,680 | 4.4% | 1,684.668 | 1.041 | |
| 31 | 1,320 | 1,316 | 0.3% | 1,674.175 | 0.788 | |
| 32 | 1,231 | 1,225 | 0.49% | 6,946.68 | 0.177 | |
| 33 | 1,167 | 1,179 | -1.02% | 2,100.686 | 0.556 | |
| 34 | 1,133 | 1,073 | 5.59% | 650.762 | 1.741 | |
| 35 | 1,064 | 1,108 | -3.97% | 905.19 | 1.175 | |
| 36 | 994 | 990 | 0.4% | 1,171.221 | 0.849 | |
| 37 | 932 | 954 | -2.31% | 811.653 | 1.148 | |
| 38 | 882 | 910 | -3.08% | 2,011.872 | 0.438 | |
| 39 | 882 | 870 | 1.38% | 605.707 | 1.456 | |
| 40 | 778 | 790 | -1.52% | 1,067.362 | 0.729 | |
| 41 | 509 | 487 | 4.52% | 1,198.268 | 0.425 | |
| 42 | 383 | 381 | 0.52% | 999.442 | 0.383 | |
| 43 | 366 | 366 | - | 719.996 | 0.508 | |
| 44 | 355 | 353 | 0.57% | 1,073.31 | 0.331 | |
| 45 | 335 | 343 | -2.33% | 1,011.061 | 0.331 | |
| 46 | 287 | 277 | 3.61% | 1,466.811 | 0.196 | |
| 47 | 253 | 239 | 5.86% | 574.385 | 0.44 | |
| 48 | 205 | 215 | -4.65% | 1,163.349 | 0.176 | |
| 49 | 192 | 190 | 1.05% | 1,359.078 | 0.141 | |
| 50 | 189 | 195 | -3.08% | 1,903.027 | 0.099 | |
| 51 | 178 | 178 | - | 599.631 | 0.297 | |
| 52 | 136 | 140 | -2.86% | 767.77 | 0.177 | |
| 53 | 73 | 73 | - | 1,289.568 | 0.057 | |
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