| Zip Code : | 66030 |
| City : | Gardner city |
| County : | Johnson County |
| State : | Kansas (KS) |
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| Land Area : | 47.38 sq mi |
| Water Area : | 0.50 sq mi |
| Latitude : | 38.8151372 |
| Longitude : | -94.9402659 |
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| Population (2010): | 20,961 |
| Population Estimate (2012) : | 21,225 |
| Population Density : | 442.40/sq mi |
| Housing Units (2012) : | 8,126 |
| Median Household Income (2012) : | $65,939 (Kansas : $51,273, USA : $53,046) |
| Median Family Income (2012) : | $74,217 (Kansas : $64,731, USA : $64,585) |
| Median House Price (2012) : | $164,700 (Kansas : $127,400, USA : $181,400) |