| City : | Ontario City |
| County : | Clay County, New London County, Richland County, San Diego County |
| State : | Ohio (OH) |
| | |
| Land Area : | 11.08 sq mi |
| Water Area : | 0.02 sq mi |
| Latitude : | 40.7685372 |
| Longitude : | -82.6169069 |
| | |
| Population (2010): | 6,225 |
| Population Estimate (2012) : | 6,154 |
| Population Density : | 561.61/sq mi |
| Housing Units (2012) : | 2,808 |
| Median Household Income (2012) : | $46,862 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $62,005 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $130,400 (Ohio : $133,700, USA : $181,400) |