| City : | Mason City |
| County : | Warren County |
| State : | Ohio (OH) |
| Land Area : | 18.63 sq mi |
| Water Area : | 0.04 sq mi |
| Latitude : | 39.3517977 |
| Longitude : | -84.3021801 |
| Population (2010): | 30,712 |
| Population Estimate (2012) : | 30,659 |
| Population Density : | 1,648.64/sq mi |
| Housing Units (2012) : | 11,471 |
| Median Household Income (2012) : | $83,608 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $104,833 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $222,300 (Ohio : $133,700, USA : $181,400) |