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> South Dakota > Zip Code 57533
| Zip Code : | 57533 |
| City : | Gregory city |
| County : | Gregory County, Lyman County |
| State : | South Dakota (SD) |
| Land Area : | 407.18 sq mi |
| Water Area : | 8.70 sq mi |
| Latitude : | 43.3789340 |
| Longitude : | -99.4249385 |
| Population (2010): | 1,900 |
| Population Estimate (2012) : | 1,864 |
| Population Density : | 4.67/sq mi |
| Housing Units (2012) : | 1,075 |
| Median Household Income (2012) : | $35,912 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $45,375 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $55,300 (South Dakota : $129,800, USA : $181,400) |