| Zip Code : | 45011 |
| City : | Fairfield city, Hamilton city, Monroe city, New Miami village, Seven Mile village, Williamsdale |
| County : | Butler County |
| State : | Ohio (OH) |
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| Land Area : | 60.63 sq mi |
| Water Area : | 0.63 sq mi |
| Latitude : | 39.4265624 |
| Longitude : | -84.4976077 |
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| Population (2010): | 69,677 |
| Population Estimate (2012) : | 68,127 |
| Population Density : | 1,149.18/sq mi |
| Housing Units (2012) : | 26,058 |
| Median Household Income (2012) : | $60,039 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $73,581 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $178,700 (Ohio : $133,700, USA : $181,400) |