| City : | Williamsville Village |
| County : | Sangamon County |
| State : | Illinois (IL) |
| | |
| Land Area : | 1.26 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 39.9517388 |
| Longitude : | -89.5507000 |
| | |
| Population (2010): | 1,476 |
| Population Estimate (2012) : | 1,530 |
| Population Density : | 1,170.28/sq mi |
| Housing Units (2012) : | 575 |
| Median Household Income (2012) : | $70,875 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $79,107 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $147,700 (Illinois : $190,800, USA : $181,400) |