| City : | Alpena Town |
| County : | Jerauld County |
| State : | South Dakota (SD) |
| | |
| Land Area : | 1.63 sq mi |
| Water Area : | 0.01 sq mi |
| Latitude : | 44.1833784 |
| Longitude : | -98.3683621 |
| | |
| Population (2010): | 286 |
| Population Estimate (2012) : | 302 |
| Population Density : | 175.45/sq mi |
| Housing Units (2012) : | 124 |
| Median Household Income (2012) : | $46,719 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $45,469 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $36,300 (South Dakota : $129,800, USA : $181,400) |