| Zip Code : | 66451 |
| City : | Lyndon city, Vassar |
| County : | Osage County |
| State : | Kansas (KS) |
| | |
| Land Area : | 82.50 sq mi |
| Water Area : | 1.64 sq mi |
| Latitude : | 38.6147160 |
| Longitude : | -95.6723232 |
| | |
| Population (2010): | 1,793 |
| Population Estimate (2012) : | 1,709 |
| Population Density : | 21.73/sq mi |
| Housing Units (2012) : | 886 |
| Median Household Income (2012) : | $54,509 (Kansas : $51,273, USA : $53,046) |
| Median Family Income (2012) : | $65,893 (Kansas : $64,731, USA : $64,585) |
| Median House Price (2012) : | $104,300 (Kansas : $127,400, USA : $181,400) |