USA
> South Dakota > Zip Code 57538
| Zip Code : | 57538 |
| City : | Herrick town |
| County : | Gregory County |
| State : | South Dakota (SD) |
| Land Area : | 132.67 sq mi |
| Water Area : | 0.21 sq mi |
| Latitude : | 43.1539937 |
| Longitude : | -99.1420469 |
| Population (2010): | 322 |
| Population Estimate (2012) : | 202 |
| Population Density : | 2.43/sq mi |
| Housing Units (2012) : | 178 |
| Median Household Income (2012) : | $28,000 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $33,906 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $60,700 (South Dakota : $129,800, USA : $181,400) |