42 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Danville | 1 | 27,590 | 29,130 | -1.1% | 1,545 | 17.86 | City |
| Danville township | 2 | 26,197 | 27,367 | -0.61% | 530 | 49.43 | Township |
| Newell township | 3 | 13,226 | 13,848 | -0.65% | 265 | 49.99 | Township |
| Georgetown township | 4 | 7,060 | 7,395 | -0.66% | 276 | 25.60 | Township |
| Grant township | 5 | 5,341 | 5,611 | -0.72% | 62 | 86.66 | Township |
| Hoopeston | 6 | 4,618 | 4,900 | -1.2% | 1,253 | 3.69 | City |
| Blount township | 7 | 3,126 | 3,265 | -0.57% | 61 | 51.35 | Township |
| Oakwood township | 8 | 3,027 | 3,168 | -0.66% | 47 | 64.36 | Township |
| Catlin township | 9 | 2,983 | 3,110 | -0.6% | 60 | 49.79 | Township |
| Westville | 10 | 2,982 | 3,162 | -1.19% | 1,777 | 1.68 | Village |
| Georgetown | 11 | 2,954 | 3,133 | -1.2% | 1,828 | 1.62 | City |
| Tilton | 12 | 2,508 | 2,652 | -1.14% | 660 | 3.80 | Village |
| Catlin | 13 | 1,886 | 1,981 | -1% | 2,221 | 0.85 | Village |
| Ross township | 14 | 1,420 | 1,478 | -0.49% | 33 | 43.51 | Township |
| Middlefork township | 15 | 1,291 | 1,346 | -0.46% | 20 | 63.65 | Township |
| Oakwood | 16 | 1,258 | 1,323 | -1.02% | 1,356 | 0.93 | Village |
| Rossville | 17 | 1,146 | 1,220 | -1.29% | 820 | 1.40 | Village |
| Vance township | 18 | 965 | 1,014 | -0.72% | 24 | 39.95 | Township |
| South Ross township | 19 | 915 | 965 | -0.87% | 17 | 53.77 | Township |
| Sidell township | 20 | 870 | 912 | -0.57% | 20 | 43.38 | Township |
| Ridge Farm | 21 | 736 | 785 | -1.34% | 241 | 3.06 | Village |
| McKendree township | 22 | 714 | 746 | -0.56% | 24 | 29.25 | Township |
| Potomac | 23 | 651 | 688 | -1.06% | 1,334 | 0.49 | Village |
| Fairmount | 24 | 581 | 616 | -1.19% | 1,833 | 0.32 | Village |
| Bismarck | 25 | 553 | 583 | -1.07% | 744 | 0.74 | Village |
| Pilot township | 26 | 511 | 533 | -0.39% | 8 | 62.16 | Township |
| East Lynn | 27 | 496 | 379 | 7.13% | 1,872 | 0.27 | CDP |
| Carroll township | 28 | 489 | 507 | -0.41% | 13 | 37.29 | Township |
| Rankin | 29 | 465 | 494 | -1.27% | 803 | 0.58 | Village |
| Sidell | 30 | 463 | 492 | -1.28% | 499 | 0.93 | Village |
| Fithian | 31 | 462 | 491 | -1.28% | 1,206 | 0.38 | Village |
| Georgetown | 32 | 428 | 468 | 0.47% | 2,972 | 0.14 | CDP |
| Belgium | 33 | 341 | 358 | -0.87% | 786 | 0.43 | Village |
| Allerton | 34 | 248 | 265 | -1.2% | 365 | 0.68 | Village |
| Love township | 35 | 224 | 235 | -0.88% | 11 | 20.37 | Township |
| Alvan (Alvin) | 36 | 220 | 235 | -1.35% | 277 | 0.79 | Village |
| Indianola | 37 | 216 | 226 | -0.92% | 557 | 0.39 | Village |
| Henning | 38 | 198 | 210 | -1% | 130 | 1.52 | Village |
| Jamaica township | 39 | 171 | 185 | -1.72% | 6 | 31.08 | Township |
| Fairmount township | 40 | 157 | 160 | -0.63% | 4 | 37.60 | Township |
| Muncie | 41 | 144 | 156 | -1.37% | 804 | 0.18 | Village |
| Olivet | 42 | 93 | 384 | -19.13% | 62 | 1.51 | CDP |
Danville is the largest city in Vermilion County, with a population of 27,590.
Olivet is the smallest city in Vermilion County.
There are 42 cities in Vermilion County, Illinois.