| City : | Lake Koshkonong |
| County : | Jefferson County, Maverick County |
| State : | Wisconsin (WI) |
| | |
| Land Area : | 14.10 sq mi |
| Water Area : | 15.72 sq mi |
| Latitude : | 42.8605018 |
| Longitude : | -88.9401286 |
| | |
| Population (2010): | 1,204 |
| Population Estimate (2012) : | 967 |
| Population Density : | 85.37/sq mi |
| Housing Units (2012) : | 833 |
| Median Household Income (2012) : | $54,886 (Wisconsin : $52,627, USA : $53,046) |
| Median Family Income (2012) : | $67,500 (Wisconsin : $66,415, USA : $64,585) |
| Median House Price (2012) : | $270,100 (Wisconsin : $169,000, USA : $181,400) |