USA
> California > Martinez City
| City : | Martinez City |
| County : | Contra Costa County |
| State : | California (CA) |
| Land Area : | 12.13 sq mi |
| Water Area : | 1.00 sq mi |
| Latitude : | 37.9996351 |
| Longitude : | -122.1139026 |
| Population (2010): | 35,824 |
| Population Estimate (2012) : | 36,054 |
| Population Density : | 2,953.08/sq mi |
| Housing Units (2012) : | 14,976 |
| Median Household Income (2012) : | $80,928 (California : $61,400, USA : $53,046) |
| Median Family Income (2012) : | $97,857 (California : $69,883, USA : $64,585) |
| Median House Price (2012) : | $424,100 (California : $383,900, USA : $181,400) |