| City : | Smithville City |
| County : | Clay County, Codington County |
| State : | Missouri (MO) |
| | |
| Land Area : | 15.56 sq mi |
| Water Area : | 0.11 sq mi |
| Latitude : | 39.3970983 |
| Longitude : | -94.5707355 |
| | |
| Population (2010): | 8,425 |
| Population Estimate (2012) : | 8,411 |
| Population Density : | 541.41/sq mi |
| Housing Units (2012) : | 3,280 |
| Median Household Income (2012) : | $68,071 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $83,210 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $177,100 (Missouri : $138,400, USA : $181,400) |