Sudden Valley Cdp, Washington
As of the census of 2000, there were 4165 people in the census designated place, organized into 1675 households, and 1186 families residing in the census designated place. The population density was 668.8 people per square mile (258.23/km˛), giving it the 332nd most densely populated census designated place among the Washington. There were 1984 housing units at an average density of 318.5 per square mile (122.97/km˛). The average household size was 2.49 people, and the average family size was 2.87 people. In the Sudden Valley Cdp, 23.5% of the population was under the age of 18, 8.2% were 18 to 24, 30.5% were 25 to 44, 28.3% were 45 to 64, and 9.6% who were 65 or older. For every 100 females there were 105.7 males. For every 100 females age 18 and over, there were 102.2 males. The median age of the census designated place's population was 37.7 years, The median age of males and females living in Sudden Valley Cdp was 36.5 and 38.8 years respectively. The racial or ethnic makeup of the census designated place was 3842 White, 33 Black or African American, 67 American Indian, 82 Asian, 5 Native Hawaiian, 98 from two or more races and 38 Ohter races.
The median income for a household in the census designated place was $51843, it is the 133rd highest census designated place by median household income in the U.S. state of Washington. The median income for a family in the census designated place was $60250, making it the 116th wealthiest census designated place by median family income among the Washington. The per capita income for the census designated place was $24563, it would be the 97th highest census designated place by per capita income in the U.S. state of Washington. The median income of census designated place was $26725, Males had a median income of $33323 versus $22075 for females.
In 2000, 1210 pupils and students, of which 55.79% are male and 44.21% are female, 29.05% of the total population, are in the education system. Of which, percentage of enrollment student are in, 5.7% nursery or pri school, 12.81% kindergarten, 37.36% elementary school, 16.69% high school and 27.44% College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 851 |
| April 2000 Estimate | 863 |
| July 2000 Estimate | 864 |
| July 2001 Estimate | 869 |
| July 2002 Estimate | 873 |
| July 2003 Estimate | 870 |
| July 2004 Estimate | 871 |
| July 2005 Estimate | 893 |
| July 2006 Estimate | 921 |
| July 2007 Estimate | 979 |
| July 2008 Estimate | 1049 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 44 | 25 | 69 |
| Kindergarten | 76 | 79 | 155 |
| Elementary school | 289 | 163 | 452 |
| High school | 94 | 108 | 202 |
| College or graduate school | 172 | 160 | 332 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Sudden Valley CDP, Washington | $51843 | $60250 | $24563 |
| Whatcom County, Washington | $40005 | $49325 | $20025 |
| Washington, United States | $45776 | $53760 | $22973 |
| United States | $41994 | $50046 | $21587 |