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> South Dakota > Zip Code 57779
| Zip Code : | 57779 |
| City : | St. Onge |
| County : | Lawrence County |
| State : | South Dakota (SD) |
| Land Area : | 39.60 sq mi |
| Water Area : | 0.06 sq mi |
| Latitude : | 44.5637726 |
| Longitude : | -103.7553218 |
| Population (2010): | 333 |
| Population Estimate (2012) : | 327 |
| Population Density : | 8.41/sq mi |
| Housing Units (2012) : | 159 |
| Median Household Income (2012) : | $45,438 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $73,672 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $72,400 (South Dakota : $129,800, USA : $181,400) |