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> South Dakota > Zip Code 57261
| Zip Code : | 57261 |
| City : | Roslyn town |
| County : | Day County |
| State : | South Dakota (SD) |
| Land Area : | 66.95 sq mi |
| Water Area : | 9.75 sq mi |
| Latitude : | 45.5294222 |
| Longitude : | -97.4996941 |
| Population (2010): | 321 |
| Population Estimate (2012) : | 247 |
| Population Density : | 4.79/sq mi |
| Housing Units (2012) : | 186 |
| Median Household Income (2012) : | $39,554 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $76,250 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $48,000 (South Dakota : $129,800, USA : $181,400) |