| City : | Lancaster City |
| County : | Benton County, Fairfield County, Missaukee County, Union County, Wade Hampton Census Area |
| State : | Ohio (OH) |
| | |
| Land Area : | 18.84 sq mi |
| Water Area : | 0.06 sq mi |
| Latitude : | 39.7247371 |
| Longitude : | -82.6052750 |
| | |
| Population (2010): | 38,780 |
| Population Estimate (2012) : | 38,801 |
| Population Density : | 2,058.32/sq mi |
| Housing Units (2012) : | 17,685 |
| Median Household Income (2012) : | $38,623 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $48,305 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $118,300 (Ohio : $133,700, USA : $181,400) |