| City : | Spencer City |
| County : | Clay County |
| State : | Iowa (IA) |
| Land Area : | 11.01 sq mi |
| Water Area : | 0.16 sq mi |
| Latitude : | 43.1470247 |
| Longitude : | -95.1526906 |
| Population (2010): | 11,233 |
| Population Estimate (2012) : | 11,204 |
| Population Density : | 1,019.85/sq mi |
| Housing Units (2012) : | 5,431 |
| Median Household Income (2012) : | $45,023 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $61,387 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $106,200 (Iowa : $123,000, USA : $181,400) |
Spencer City Zip Codes
| 51301 (12,691) |