Columbia Cdp, California
As of the census of 2000, there were 2405 people, 1063 households, and 659 families living in the census designated place. The population density was 389.7 people per square mile (150.46/km˛), making its California's 223rd least densely populated census designated place. There were 1162 housing units at an average density of 188.3 per square mile (72.7/km˛). The average household size was 2.18 people, and the average family size was 2.65 people. In the census designated place Age distribution was 20.2% under the age of 18, 10% from 18 to 24, 18.8% from 25 to 44, 28.1% from 45 to 64, and 22.9% who were 65 or older. For every 100 females there were 89.1 males. For every 100 females age 18 and over, there were 88.4 males. The median age is 45.7 years, the median age of male residents at 45.8 and the median age of female residents at 45.7. The racial makeup of the census designated place was 2167 White, 21 Black or African American, 34 American Indian, 31 Asian, 3 Native Hawaiian, 118 from two or more races and 31 Ohter races.
The median income for a household in the census designated place was $29173, making its California's 193rd lowest census designated place by median household income. The median income for a family in the census designated place was $35000, it would be the 240th lowest census designated place by median family income in the U.S. state of California. The per capita income for the census designated place was $18731, making its California's 557th highest census designated place by per capita income. The median income of census designated place was $17173, Males had a median income of $22127 versus $11825 for females.
In 2000, 613 pupils and students, of which 306 are male and 307 are female, 25.49% of the total population, are in the education system. Of which, total enrollment of student are in, 69 nursery or pri school, 69 kindergarten, 198 elementary school, 86 high school and 191 College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 6651 |
| April 2000 Estimate | 6669 |
| July 2000 Estimate | 6676 |
| July 2001 Estimate | 6732 |
| July 2002 Estimate | 6785 |
| July 2003 Estimate | 6881 |
| July 2004 Estimate | 7001 |
| July 2005 Estimate | 7128 |
| July 2006 Estimate | 7194 |
| July 2007 Estimate | 7200 |
| July 2008 Estimate | 7418 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 19 | 50 | 69 |
| Kindergarten | 53 | 16 | 69 |
| Elementary school | 106 | 92 | 198 |
| High school | 17 | 69 | 86 |
| College or graduate school | 111 | 80 | 191 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Columbia CDP, California | $29173 | $35000 | $18731 |
| Tuolumne County, California | $38725 | $44327 | $21015 |
| California, United States | $47493 | $53025 | $22711 |
| United States | $41994 | $50046 | $21587 |