| Zip Code : | 43040 |
| City : | Magnetic Springs village, Marysville city, Milford Center village, New California, Unionville Center village |
| County : | Delaware County, Union County |
| State : | Ohio (OH) |
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| Land Area : | 167.17 sq mi |
| Water Area : | 2.38 sq mi |
| Latitude : | 40.2610017 |
| Longitude : | -83.3596873 |
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| Population (2010): | 31,790 |
| Population Estimate (2012) : | 31,465 |
| Population Density : | 190.17/sq mi |
| Housing Units (2012) : | 11,647 |
| Median Household Income (2012) : | $63,200 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $75,253 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $169,100 (Ohio : $133,700, USA : $181,400) |