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> South Dakota > Zip Code 57454
| Zip Code : | 57454 |
| City : | Langford town |
| County : | Marshall County, Day County |
| State : | South Dakota (SD) |
| Land Area : | 150.56 sq mi |
| Water Area : | 3.64 sq mi |
| Latitude : | 45.6102399 |
| Longitude : | -97.7835313 |
| Population (2010): | 558 |
| Population Estimate (2012) : | 622 |
| Population Density : | 3.71/sq mi |
| Housing Units (2012) : | 294 |
| Median Household Income (2012) : | $37,500 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $50,625 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $64,800 (South Dakota : $129,800, USA : $181,400) |