| Zip Code : | 50647 |
| City : | Janesville city |
| County : | Black Hawk County, Bremer County |
| State : | Iowa (IA) |
| | |
| Land Area : | 29.90 sq mi |
| Water Area : | 0.62 sq mi |
| Latitude : | 42.6510752 |
| Longitude : | -92.4972118 |
| | |
| Population (2010): | 1,894 |
| Population Estimate (2012) : | 1,919 |
| Population Density : | 63.34/sq mi |
| Housing Units (2012) : | 821 |
| Median Household Income (2012) : | $55,625 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $67,639 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $162,700 (Iowa : $123,000, USA : $181,400) |