| Zip Code : | 50644 |
| City : | Independence city, Quasqueton city, Winthrop city |
| County : | Buchanan County |
| State : | Iowa (IA) |
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| Land Area : | 142.59 sq mi |
| Water Area : | 1.27 sq mi |
| Latitude : | 42.4761511 |
| Longitude : | -91.8936908 |
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| Population (2010): | 8,648 |
| Population Estimate (2012) : | 8,190 |
| Population Density : | 60.65/sq mi |
| Housing Units (2012) : | 3,892 |
| Median Household Income (2012) : | $54,804 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $71,335 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $122,600 (Iowa : $123,000, USA : $181,400) |