Columbia County, Oregon
As of the census of 2000, there were 43560 people, 16375 households, and 12034 families residing in the county. The population density was 66.3 people per square mile (25.6/kmē), it would be the ninth most densely populated county in the U.S. state of Oregon. There were 17572 housing units at an average density of 26.8 per square mile (10.35/kmē). The average household size was 2.65 persons, and the average family size was 3.06 persons. The population's age distribution was 27.3% under the age of 18, 7% from 18 to 24, 28.1% from 25 to 44, 26% from 45 to 64, and 11.6% who were 65 or older. For every 100 females there were 100 males. For every 100 females age 18 and over, there were 98.1 males. The July 2008 population estimate is 49408, The racial or ethnic makeup of the county was 46731 White, 272 Black or African American, 683 American Indian, 489 Asian, 59 Native Hawaiian, and 1174 from two or more races.
The median income for a household in the county was $45797, it would be the third highest county by median household income in the U.S. state of Oregon. The median income for a family in the county was $51381, making it the fourth wealthiest county by median family income among the Oregon. The per capita income for the county was $20078, it is the sixth highest county by per capita income in the U.S. state of Oregon.
In 2000, 10694 pupils and students, of which 5215 are male and 5479 are female, 24.55% of the total population, are in the education system. Of which, total enrollment of student are in, 564 nursery or pri school, 639 kindergarten, 5568 elementary school, 2713 high school and 1210 College graduate school.
| Rank | City | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Clatskanie City | Columbia County | 1.2 | 1.2 | 0 | 1528 | 1274.1 | 16717 | 35833 |
| 2 | Columbia City City | Columbia County | 1.1 | 0.75 | 0.35 | 1571 | 2106.6 | 25266 | 59545 |
| 3 | Prescott City | Columbia County | 0.06 | 0.06 | 0 | 72 | 1200.2 | 13773 | 40000 |
| 4 | Rainier City | Columbia County | 2.63 | 1.61 | 1.01 | 1687 | 1044.8 | 18511 | 41949 |
| 5 | Scappoose City | Columbia County | 2.46 | 2.46 | 0 | 4976 | 2020 | 20837 | 47796 |
| 6 | St. Helens City | Columbia County | 5.31 | 4.35 | 0.97 | 10019 | 2305.6 | 17237 | 40648 |
| 7 | Vernonia City | Columbia County | 1.58 | 1.54 | 0.04 | 2228 | 1444.2 | 16647 | 41181 |
| Year | Population |
|---|---|
| April 2000 census | 43560 |
| April 2000 Estimate | 43560 |
| July 2000 Estimate | 43657 |
| July 2001 Estimate | 44233 |
| July 2002 Estimate | 45155 |
| July 2003 Estimate | 45675 |
| July 2004 Estimate | 46241 |
| July 2005 Estimate | 47008 |
| July 2006 Estimate | 48212 |
| July 2007 Estimate | 48914 |
| July 2008 Estimate | 49408 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 293 | 271 | 564 |
| Kindergarten | 354 | 285 | 639 |
| Elementary school | 2774 | 2794 | 5568 |
| High school | 1314 | 1399 | 2713 |
| College or graduate school | 480 | 730 | 1210 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Columbia County, Oregon | $45797 | $51381 | $20078 |
| Oregon, United States | $40916 | $48680 | $20940 |
| United States | $41994 | $50046 | $21587 |