| City : | Warren City |
| County : | Trumbull County |
| State : | Ohio (OH) |
| Land Area : | 16.13 sq mi |
| Water Area : | 0.03 sq mi |
| Latitude : | 41.2382556 |
| Longitude : | -80.8167246 |
| Population (2010): | 41,557 |
| Population Estimate (2012) : | 41,569 |
| Population Density : | 2,576.83/sq mi |
| Housing Units (2012) : | 20,384 |
| Median Household Income (2012) : | $29,218 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $37,579 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $67,200 (Ohio : $133,700, USA : $181,400) |