| City : | Merrillville Town |
| County : | Lake County |
| State : | Indiana (IN) |
| Land Area : | 33.22 sq mi |
| Water Area : | 0.04 sq mi |
| Latitude : | 41.4726872 |
| Longitude : | -87.3180704 |
| Population (2010): | 35,246 |
| Population Estimate (2012) : | 35,201 |
| Population Density : | 1,061.13/sq mi |
| Housing Units (2012) : | 14,842 |
| Median Household Income (2012) : | $53,470 (Indiana : $48,374, USA : $53,046) |
| Median Family Income (2012) : | $61,493 (Indiana : $60,012, USA : $64,585) |
| Median House Price (2012) : | $132,600 (Indiana : $123,400, USA : $181,400) |