| City : | Willow Lake City |
| County : | Clark County, Ringgold County, Steele County, Union County |
| State : | South Dakota (SD) |
| | |
| Land Area : | 0.37 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 44.6279008 |
| Longitude : | -97.6380571 |
| | |
| Population (2010): | 263 |
| Population Estimate (2012) : | 327 |
| Population Density : | 706.27/sq mi |
| Housing Units (2012) : | 129 |
| Median Household Income (2012) : | $30,833 (South Dakota : $49,091, USA : $53,046) |
| Median Family Income (2012) : | $55,833 (South Dakota : $62,967, USA : $64,585) |
| Median House Price (2012) : | $51,100 (South Dakota : $129,800, USA : $181,400) |