| Place Name | Hannibal |
| Place Type | City |
| ZIP Code(s) | 63401 |
| County | Marion County Ralls County |
| Area Code(s) | 573 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 17,835 |
| Population Growth Rate (2010-19) | -4.51% |
| Majority Ethnicity | White 90.03% |
| Metro/Micro Stats Area | Hannibal, MO |
| US Congressional District(s) | Missouri 6th |
| State House Districts | 5,40 |
| State Senate Districts | 18 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.03% |
| African American | 6.17% |
| Hispanic | 0.16% |
| Asian | 0.46% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 3.02% |