| Zip Code : | 97051 |
| City : | Columbia city, St. Helens city |
| County : | Columbia County |
| State : | Oregon (OR) |
| | |
| Land Area : | 48.23 sq mi |
| Water Area : | 1.05 sq mi |
| Latitude : | 45.8793197 |
| Longitude : | -122.9500006 |
| | |
| Population (2010): | 15,957 |
| Population Estimate (2012) : | 15,904 |
| Population Density : | 330.84/sq mi |
| Housing Units (2012) : | 6,352 |
| Median Household Income (2012) : | $54,559 (Oregon : $50,036, USA : $53,046) |
| Median Family Income (2012) : | $63,131 (Oregon : $61,438, USA : $64,585) |
| Median House Price (2012) : | $196,500 (Oregon : $246,100, USA : $181,400) |