Editing Portola Valley, California (section)

===2000===
As of the census<ref name="GR2">{{cite web|url=https://www.census.gov|publisher=[[United States Census Bureau]]|access-date=January 31, 2008|title=U.S. Census website}}</ref> of 2000, there were 4,392 people, 1,772 households, and 1,269 families residing in the town.  The population density was {{convert|487.5|PD/sqmi|PD/km2|sp=us|adj=off}}.  There were 1,772 housing units at an average density of {{convert|193.6|/sqmi|/km2|sp=us|adj=off}}.  The racial makeup of the town was 4,210 [[White (U.S. Census)|White]], 29 [[African American (U.S. Census)|African American]], 22 [[Native American (U.S. Census)|Native American]], 217 [[Asian (U.S. Census)|Asian]], 5 [[Pacific Islander (U.S. Census)|Pacific Islander]], 54 from [[Race (United States Census)|other races]], and 64 from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race were 149.

There were 1,772 households, out of which 532 had children under the age of 18 living with them, 1,176 were married couples living together, 68 had a woman householder with no man present, and 431 were non-families. 339 of all households were made up of individuals, and 226 had someone living alone who was 65 years of age or older.  The average household size was 2.75 and the average family size was 2.93.

In the town the age distribution of the population shows 1021 persons under the age of 18, 90 from 20 to 24, 867 from 25 to 44, 1492 from 45 to 64, and 938 who were 65 years of age or older.  The median age was 47.5 years old. For every 100 women there were 96.8 men.  For every 100 women age 18 and over, there were 91.7 men.

The median [[income]] for a household in Portola Valley, including earnings, is $244,771 and the median income for a family was $180,893. Men have a median income of over $200,000 versus $172,585 for women. The [[per capita income]] for Portola Valley is $152,128.  About 18 families and 104 people were below the [[poverty line]], including 38 of those under age 18 and none of those age 65 or over.