| Zip Code : | 53563 |
| City : | Janesville city, Lake Koshkonong, Milton city |
| County : | Jefferson County, Rock County |
| State : | Wisconsin (WI) |
| | |
| Land Area : | 64.60 sq mi |
| Water Area : | 9.31 sq mi |
| Latitude : | 42.8045006 |
| Longitude : | -88.9160088 |
| | |
| Population (2010): | 10,728 |
| Population Estimate (2012) : | 10,529 |
| Population Density : | 166.07/sq mi |
| Housing Units (2012) : | 4,517 |
| Median Household Income (2012) : | $59,156 (Wisconsin : $52,627, USA : $53,046) |
| Median Family Income (2012) : | $73,627 (Wisconsin : $66,415, USA : $64,585) |
| Median House Price (2012) : | $175,200 (Wisconsin : $169,000, USA : $181,400) |