Identifiers: city · village · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Champaign (city), IL | 88,302 |
| 2 | Urbana (city), IL | 38,336 |
| 3 | Rantoul (village), IL | 12,371 |
| 4 | Mahomet (village), IL | 9,434 |
| 5 | Savoy (village), IL | 8,857 |
| 6 | St. Joseph (village), IL | 3,810 |
| 7 | Tolono (village), IL | 3,604 |
| 8 | Villa Grove (city), IL | 2,472 |
| 9 | Lake of the Woods (CDP), IL | 2,403 |
| 10 | Fisher (village), IL | 2,062 |
| 11 | Philo (village), IL | 1,392 |
| 12 | Oakwood (village), IL | 1,325 |
| 13 | Sidney (village), IL | 1,208 |
| 14 | Homer (village), IL | 1,073 |
| 15 | Thomasboro (village), IL | 1,034 |
| 16 | Mansfield (village), IL | 928 |
| 17 | Ogden (village), IL | 729 |
| 18 | Pesotum (village), IL | 550 |
| 19 | Fithian (village), IL | 488 |
| 20 | Sadorus (village), IL | 402 |
Identifiers: city · village · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Champaign (city), IL | 88,302 |
| 2 | Urbana (city), IL | 38,336 |
| 3 | Rantoul (village), IL | 12,371 |
| 4 | Mahomet (village), IL | 9,434 |
| 5 | Savoy (village), IL | 8,857 |
| 6 | St. Joseph (village), IL | 3,810 |
| 7 | Tolono (village), IL | 3,604 |
| 8 | Villa Grove (city), IL | 2,472 |
| 9 | Lake of the Woods (CDP), IL | 2,403 |
| 10 | Fisher (village), IL | 2,062 |
| 11 | Philo (village), IL | 1,392 |
| 12 | Oakwood (village), IL | 1,325 |
| 13 | Sidney (village), IL | 1,208 |
| 14 | Homer (village), IL | 1,073 |
| 15 | Thomasboro (village), IL | 1,034 |
| 16 | Mansfield (village), IL | 928 |
| 17 | Ogden (village), IL | 729 |
| 18 | Pesotum (village), IL | 550 |
| 19 | Fithian (village), IL | 488 |
| 20 | Sadorus (village), IL | 402 |