San Carlos Flag

San Carlos

County Seat:
No
Area (mi²):
5.412
State:
California

San Carlos is a city located in San Mateo County, California. San Carlos has a 2026 population of 28,780. San Carlos is currently declining at a rate of -1.07% annually and its population has decreased by -6.1% since the most recent census, which recorded a population of 30,648 in 2020.

The median household income in San Carlos is $237,470 with a poverty rate of 3.31%. The median age in San Carlos is 41.7 years: 39.7 years for males, and 43.2 years for females. For every 100 females there are 97.1 males.

28.8K
Total Population
5,318
Density (mi²)
-311 -1.07%
Growth

San Carlos Population

San Carlos Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202628,780-311-1.07%
202529,091-312-1.06%
202429,4032210.76%
202329,182-62-0.21%
202229,244-390-1.32%
202129,634-1,100-3.58%
202030,6489883.33%
201929,660840.28%
201829,576-81-0.27%
201729,657-45-0.15%
201629,702-8-0.03%
201529,7101930.65%
201429,5172460.84%
201329,2713091.07%
201228,9623801.33%
201128,5822821%
201028,300-106-0.37%
200027,7181,5515.93%
199026,1671,4575.9%
198024,710-1,343-5.15%
197026,0534,68321.91%
196021,3706,99948.7%
195014,37110,851308.27%
19403,5202,388210.95%
19301,13200%

Median Age

Overall: 41.7 years
Female: 43.2 years
Male: 39.7 years

San Carlos Adults

There are 22,694 adults, (4,894 of whom are seniors) in San Carlos.

Sex Ratio

Female: 15,023 (50.7%)
Male: 14,591 (49.3%)

Demographics

The racial composition of San Carlos includes 57.5% White, 23.44% Asian, 3.85% other race, and smaller percentages for Native Hawaiian or Pacific Islander, Black or African American, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White17,02957.5%
Asian6,94323.44%
Two or more races4,06113.71%
Other race1,1403.85%
Native Hawaiian or Pacific Islander2170.73%
Black or African American1740.59%
Native American500.17%
Race
Population ↓
Percentage (of total)
Two or more races1,8346.19%
Other race8142.75%
White5271.78%
Native American400.14%
Asian50.02%
Native Hawaiian or Pacific Islander40.01%
Race
Population ↓
Percentage (of total)
White16,50255.72%
Asian6,93823.43%
Two or more races2,2277.52%
Other race3261.1%
Native Hawaiian or Pacific Islander2130.72%
Black or African American1740.59%
Native American100.03%

San Carlos Marital Status

Economics and Income Statistics

San Carlos ' average per capita income is $143,358. Household income levels show a median of $237,470. The poverty rate stands at 3.31%.

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$392,991
Married Families$250,001-
Households$237,470$338,651
Non Families$110,803$158,673

$143,358

Average Income

$237,470

Median Household Income

3.31%

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)