| City : | Monmouth City |
| County : | Creek County, Polk County |
| State : | Oregon (OR) |
| | |
| Land Area : | 2.24 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 44.8505063 |
| Longitude : | -123.2284106 |
| | |
| Population (2010): | 9,534 |
| Population Estimate (2012) : | 9,549 |
| Population Density : | 4,257.44/sq mi |
| Housing Units (2012) : | 3,450 |
| Median Household Income (2012) : | $29,697 (Oregon : $50,036, USA : $53,046) |
| Median Family Income (2012) : | $56,159 (Oregon : $61,438, USA : $64,585) |
| Median House Price (2012) : | $188,300 (Oregon : $246,100, USA : $181,400) |