42 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Danville | 1 | 27,694 | 29,127 | -1.03% | 1,551 | 18 | City |
| Danville | 2 | 26,156 | 27,362 | -0.63% | 529 | 49 | Township |
| Newell | 3 | 13,232 | 13,852 | -0.58% | 265 | 50 | Township |
| Georgetown | 4 | 7,050 | 7,401 | -0.69% | 275 | 26 | Township |
| Grant | 5 | 5,336 | 5,609 | -0.67% | 62 | 87 | Township |
| Hoopeston | 6 | 4,638 | 4,900 | -1.13% | 1,258 | 4 | City |
| Blount | 7 | 3,113 | 3,257 | -0.57% | 61 | 51 | Township |
| Oakwood | 8 | 3,023 | 3,168 | -0.62% | 47 | 64 | Township |
| Westville | 9 | 3,002 | 3,166 | -1.09% | 1,789 | 2 | Village |
| Catlin | 10 | 2,991 | 3,118 | -0.53% | 60 | 50 | Township |
| Georgetown | 11 | 2,968 | 3,133 | -1.1% | 1,837 | 2 | City |
| Tilton | 12 | 2,507 | 2,637 | -1.03% | 659 | 4 | Village |
| Catlin | 13 | 1,902 | 1,987 | -0.89% | 2,240 | 1 | Village |
| Ross | 14 | 1,408 | 1,479 | -0.85% | 32 | 44 | Township |
| Middlefork | 15 | 1,285 | 1,350 | -0.77% | 20 | 64 | Township |
| Oakwood | 16 | 1,263 | 1,323 | -0.94% | 1,361 | 1 | Village |
| Rossville | 17 | 1,148 | 1,216 | -1.2% | 821 | 1 | Village |
| Vance | 18 | 966 | 1,013 | -0.51% | 24 | 40 | Township |
| South Ross | 19 | 921 | 964 | -0.43% | 17 | 54 | Township |
| Sidell | 20 | 860 | 907 | -0.81% | 20 | 43 | Township |
| Ridge Farm | 21 | 744 | 789 | -1.2% | 243 | 3 | Village |
| McKendree | 22 | 715 | 746 | -0.56% | 24 | 29 | Township |
| Potomac | 23 | 648 | 685 | -1.22% | 1,328 | 0 | Village |
| Fairmount | 24 | 582 | 614 | -1.19% | 1,836 | 0 | Village |
| Bismarck | 25 | 565 | 583 | -0.7% | 760 | 1 | Village |
| Pilot | 26 | 508 | 533 | -0.59% | 8 | 62 | Township |
| East Lynn | 27 | 496 | 379 | 7.13% | 1,872 | 0 | CDP |
| Carroll | 28 | 484 | 507 | -0.62% | 13 | 37 | Township |
| Rankin | 29 | 469 | 494 | -1.05% | 810 | 1 | Village |
| Fithian | 30 | 468 | 493 | -1.06% | 1,222 | 0 | Village |
| Sidell | 31 | 461 | 489 | -1.28% | 497 | 1 | Village |
| Georgetown | 32 | 428 | 468 | 0.47% | 2,972 | 0 | CDP |
| Belgium | 33 | 340 | 358 | -1.16% | 783 | 0 | Village |
| Allerton | 34 | 250 | 265 | -1.19% | 368 | 1 | Village |
| Love | 35 | 223 | 234 | -0.45% | 11 | 20 | Township |
| Alvan (Alvin) | 36 | 221 | 234 | -1.34% | 279 | 1 | Village |
| Indianola | 37 | 217 | 227 | -0.91% | 559 | 0 | Village |
| Henning | 38 | 199 | 209 | -1% | 131 | 2 | Village |
| Jamaica | 39 | 173 | 185 | -1.7% | 6 | 31 | Township |
| Fairmount | 40 | 156 | 159 | -0.64% | 4 | 38 | Township |
| Muncie | 41 | 146 | 156 | -1.35% | 816 | 0 | Village |
| Olivet | 42 | 93 | 384 | -19.13% | 62 | 2 | CDP |
Danville is the largest city in Vermilion County, with a population of 27,694.
Olivet is the smallest city in Vermilion County, with a population of 93.
There are 42 cities in Vermilion County, Illinois.