Belmont Flag

Belmont

County Seat:
No
Area (mi²):
4.63
State:
California

Belmont is a city located in San Mateo County, California. Belmont has a 2025 population of 25,531. Belmont is currently declining at a rate of -2.09% annually and its population has decreased by -9.65% since the most recent census, which recorded a population of 28,258 in 2020.

The average household income in Belmont is $258,184 with a poverty rate of 6.46%.The median age in Belmont is 40.4 years: 40.6 years for males, and 40.2 years for females.

25.5K
Total Population
5,515
Density (mi²)
-545 -2.09%
Growth

Belmont Population

Belmont Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Belmont includes 50.68% White, 29.46% Asian, 5.76% other race, and smaller percentages for Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White13,94050.68%
Asian8,10429.46%
Two or more races2,85710.39%
Other race1,5855.76%
Black or African American5892.14%
Native Hawaiian or Pacific Islander3471.26%
Native American830.3%

Belmont Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Belmont's average per capita income is $130,809. Household income levels show a median of $207,609. The poverty rate stands at 6.46%.

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
Families$250,001$317,019
Married Families$250,001-
Households$207,609$258,184
Non Families$97,350$118,574

$130,809

Average Income

$207,609

Median Household Income

6.46%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)