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, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

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%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

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