| Zip Code : | 51201 |
| City : | Matlock city, Sheldon city |
| County : | Lyon County, O'Brien County, Sioux County |
| State : | Iowa (IA) |
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| Land Area : | 114.18 sq mi |
| Water Area : | 0.03 sq mi |
| Latitude : | 43.1778304 |
| Longitude : | -95.8660913 |
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| Population (2010): | 6,193 |
| Population Estimate (2012) : | 6,069 |
| Population Density : | 54.24/sq mi |
| Housing Units (2012) : | 2,768 |
| Median Household Income (2012) : | $47,298 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $63,080 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $118,600 (Iowa : $123,000, USA : $181,400) |