| Place Name | Macomb |
| Place Type | City |
| ZIP Code(s) | 61455 |
| County | Mcdonough County |
| Area Code(s) | 309 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 19,260 |
| Population Growth Rate (2010-19) | -21.97% |
| Majority Ethnicity | White 83.58% |
| Metro/Micro Stats Area | Macomb, IL |
| US Congressional District(s) | Illinois 18th |
| State House Districts | 93 |
| State Senate Districts | 47 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 83.58% |
| African American | 8.44% |
| Hispanic | 0.08% |
| Asian | 3.35% |
| Native American | 0.06% |
| Hawaiin/Pacific Islander | 4.5% |