| Place Name | Monticello |
| Place Type | City |
| ZIP Code(s) | 61856 |
| County | Piatt County |
| Area Code(s) | 217 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 5,297 |
| Population Growth Rate (2010-19) | 7.08% |
| Majority Ethnicity | White 97.51% |
| Metro/Micro Stats Area | Champaign-Urbana, IL |
| US Congressional District(s) | Illinois 13th |
| State House Districts | 101 |
| State Senate Districts | 51 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.51% |
| African American | 0.84% |
| Hispanic | 0% |
| Asian | 0.02% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.63% |