| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Columbia | County | 37,557 | 43,553 | 49,351 | o |
| Oregon | Federal State | 2,842,337 | 3,421,524 | 3,831,074 |
| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Clatskanie | City | 1,581 | 1,528 | 1,737 | o |
| Columbia City | City | 992 | 1,571 | 1,946 | o |
| Deer Island | Census-Designated Place | ... | ... | 294 | o |
| Prescott | City | 63 | 72 | 55 | o |
| Rainier | City | 1,632 | 1,687 | 1,895 | o |
| Scappoose | City | 3,550 | 5,040 | 6,592 | o |
| St. Helens | City | 7,616 | 10,098 | 12,883 | o |
| Vernonia | City | 1,818 | 2,260 | 2,151 | o |
| Warren | Census-Designated Place | ... | ... | 1,787 | o |
Source: US Census Bureau (web).
2011-04-03WWW.CITYPOPULATION.DE