| City : | Westerville City |
| County : | Delaware County, Franklin County |
| State : | Ohio (OH) |
| | |
| Land Area : | 12.47 sq mi |
| Water Area : | 0.14 sq mi |
| Latitude : | 40.1234352 |
| Longitude : | -82.9133238 |
| | |
| Population (2010): | 36,120 |
| Population Estimate (2012) : | 36,415 |
| Population Density : | 2,895.89/sq mi |
| Housing Units (2012) : | 14,467 |
| Median Household Income (2012) : | $84,095 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $99,247 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $210,800 (Ohio : $133,700, USA : $181,400) |