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 2026 population of 28,590. Belmont is currently declining at a rate of -0.56% annually but its population has increased by 1.16% since the most recent census, which recorded a population of 28,261 in 2020.

The median household income in Belmont is $205,297 with a poverty rate of 6.92%. The median age in Belmont is 39.8 years: 39.5 years for males, and 40.1 years for females. For every 100 females there are 100.2 males.

28.6K
Total Population
6,176
Density (mi²)
-162 -0.56%
Growth

Belmont Population

Belmont Population

Year ↓
Population
Growth
Annual Change
202628,590-162-0.56%
202528,7521,1384.12%
202427,6147012.6%
202326,913-42-0.16%
202226,955-391-1.43%
202127,346-984-3.47%
202028,2611,4325.34%
201926,829-242-0.89%
201827,071-85-0.31%
201727,156-55-0.2%
201627,21140.01%
201527,2071880.7%
201427,0192130.79%
201326,8062751.04%
201226,5313421.31%
201126,1892560.99%
201025,933980.38%
200025,1239964.13%
199024,127-378-1.54%
198024,5059674.11%
197023,5387,54247.15%
196015,99610,429187.34%
19505,5674,338352.97%
19401,22924524.9%
1930984782387.13%
188020200%

Median Age

Overall: 39.8 years
Female: 40.1 years
Male: 39.5 years

Belmont Adults

There are 20,871 adults, (3,813 of whom are seniors) in Belmont.

Sex Ratio

Female: 13,654 (49.9%)
Male: 13,683 (50.1%)

Demographics

The racial composition of Belmont includes 48.6% White, 30.75% Asian, 5.93% other race, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White13,28748.6%
Asian8,40630.75%
Two or more races3,03211.09%
Other race1,6205.93%
Black or African American7282.66%
Native American1320.48%
Native Hawaiian or Pacific Islander1320.48%
Race
Population ↓
Percentage (of total)
Other race1,2714.65%
Two or more races1,0934%
White7702.82%
Black or African American2230.82%
Native Hawaiian or Pacific Islander1310.48%
Native American590.22%
Asian310.11%
Race
Population ↓
Percentage (of total)
White12,51745.79%
Asian8,37530.64%
Two or more races1,9397.09%
Black or African American5051.85%
Other race3491.28%
Native American730.27%
Native Hawaiian or Pacific Islander10%

Belmont Marital Status

Economics and Income Statistics

Belmont's average per capita income is $132,761. Household income levels show a median of $205,297. The poverty rate stands at 6.92%.

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$329,497
Married Families$250,001-
Households$205,297$264,438
Non Families$113,500$131,365

$132,761

Average Income

$205,297

Median Household Income

6.92%

Poverty Rate

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)