| Zip Code : | 67042 |
| City : | El Dorado city, Rosalia, Towanda city |
| County : | Butler County |
| State : | Kansas (KS) |
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| Land Area : | 256.22 sq mi |
| Water Area : | 12.33 sq mi |
| Latitude : | 37.8572635 |
| Longitude : | -96.7807180 |
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| Population (2010): | 17,969 |
| Population Estimate (2012) : | 17,970 |
| Population Density : | 70.13/sq mi |
| Housing Units (2012) : | 7,283 |
| Median Household Income (2012) : | $47,787 (Kansas : $51,273, USA : $53,046) |
| Median Family Income (2012) : | $59,544 (Kansas : $64,731, USA : $64,585) |
| Median House Price (2012) : | $96,600 (Kansas : $127,400, USA : $181,400) |