| City : | Johnson Siding |
| County : | Grenada County, Pennington County |
| State : | South Dakota (SD) |
| | |
| Land Area : | 3.73 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 44.0845651 |
| Longitude : | -103.4379846 |
| | |
| Population (2010): | 659 |
| Population Estimate (2012) : | 645 |
| Population Density : | 176.45/sq mi |
| Housing Units (2012) : | 337 |
| Median Household Income (2012) : | $111,910 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $114,318 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $233,100 (South Dakota : $129,800, USA : $181,400) |