| City : | Hannibal City |
| County : | Marion County, Ralls County |
| State : | Missouri (MO) |
| | |
| Land Area : | 15.73 sq mi |
| Water Area : | 0.47 sq mi |
| Latitude : | 39.7101225 |
| Longitude : | -91.3935043 |
| | |
| Population (2010): | 17,916 |
| Population Estimate (2012) : | 17,835 |
| Population Density : | 1,138.65/sq mi |
| Housing Units (2012) : | 8,021 |
| Median Household Income (2012) : | $38,072 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $48,352 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $86,700 (Missouri : $138,400, USA : $181,400) |