Portola Valley

County:: San Mateo County
County Seat:: No
Area (mi²):: 9.083
State:: California

Portola Valley is a town located in San Mateo County, California. Portola Valley has a 2025 population of 4,042. Portola Valley is currently declining at a rate of -1.96% annually and its population has decreased by -9.11% since the most recent census, which recorded a population of 4,447 in 2020.

The average household income in Portola Valley is $482,122 with a poverty rate of 5.33%.The median age in Portola Valley is 58 years: 56.4 years for males, and 60.7 years for females.

Demographics

The racial composition of Portola Valley includes 79.6% White, 9.38% Asian, and smaller percentages for other race, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,446	79.6%
Two or more races	428	9.89%
Asian	406	9.38%
Other race	39	0.9%
Black or African American	10	0.23%

Portola Valley Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Portola Valley's average per capita income is $210,223. Household income levels show a median of $250,001. The poverty rate stands at 5.33%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Households	$250,001	$482,122
Families	$250,001	$616,785
Married Families	$250,001	-
Non Families	$129,073	$170,909

$210,223

Average Income

$250,001

Median Household Income

5.33%

Poverty Rate