San Carlos, California Population 2021

29,893
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San Carlos is a city located in San Mateo County California. With a 2020 population of 29,893, it is the 240th largest city in California and the 1291st largest city in the United States . San Carlos is currently declining at a rate of -0.49% annually but its population has increased by 5.23% since the most recent census, which recorded a population of 28,406 in 2010. San Carlos reached it's highest population of 30,393 in 2017. Spanning over 6 miles, San Carlos has a population density of 5,422 people per square mile.

The average household income in San Carlos is $239,376 with a poverty rate of 3.02%. The median rental costs in recent years comes to $2,321 per month, and the median house value is $1.63 Mn. The median age in San Carlos is 41.8 years, 40.5 years for males, and 43.2 years for females.

San Carlos Demographics

According to the most recent ACS, the racial composition of San Carlos was:

  • White: 73.93%
  • Asian: 16.37%
  • Two or more races: 6.02%
  • Other race: 2.59%
  • Black or African American: 0.82%
  • Native Hawaiian or Pacific Islander: 0.18%
  • Native American: 0.09%
The current population of San Carlos, California is 29,893 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 30,331.The last official US Census in 2010 recorded the population at 28,406.

San Carlos, California Population 2021

Population by Race

Race Population Percentage
White22,29473.93%
Asian4,93716.37%
Two or More Races1,8146.02%
Some Other Race7812.59%
Black or African American2480.82%
Native Hawaiian and Other Pacific Islander540.18%
American Indian and Alaska Native260.09%
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San Carlos Population by Race

San Carlos Population Pyramid $2021

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San Carlos Median Age

41.8


Total

40.5


Male

43.2


Female

San Carlos Adults

There are 22,685 adults, (4,708 of whom are seniors) in San Carlos.

San Carlos Age Dependency

67.7

Age Dependency Ratio

26.2

Old Age Dependency Ratio

41.5

Child Dependency Ratio

San Carlos Sex Ratio

Female

15,682

52.01%

Male

14,472

47.99%

San Carlos Population by Age

San Carlos Renter vs Owner Occupied by Household Type

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San Carlos Household Types

Type Owner Renter
Married82.6%17.4%
All72.4%27.6%
Male62.2%37.8%
Female58.9%41.1%
Non Family55%45%

72.4%

Rate of Home Ownership

San Carlos Households and Families

Type Count Average Size Owned
All11,2232.6872.4
Married6,8533.2282.6
Non Family3,1891.3355
Female8873.2958.9
Male2942.8162.2

3.14

Average Family Size

2.68

Average Household Size

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San Carlos Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3651.71%
9th to 12th Grade2120.99%
High School Graduate1,8898.85%
Some College2,90813.62%
Associates Degree1,3966.54%
Bachelors Degree7,24433.94%
Graduate Degree7,33234.35%
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San Carlos Educational Attainment by Sex (over 25)

San Carlos Educational Attainment by Race

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Race Total High School Bachelors
White14,96314,65010,168
Asian3,6863,6042,905
Hispanic1,7771,637867
2+ Races699657464
Other Race582499263
Black224211144
Islander5422
Native American26262

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 78.81%.

San Carlos Educational Attainment by Race

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Name Average Male Female
Overall$103,217$128,308$80,177
Less Than 9th Grade$21,172$26,724$
High School Graduate$40,900$63,148$31,176
Some College$61,786$70,307$58,446
Bachelors Degree$105,079$125,580$83,828
Graduate Degree$150,100$187,049$107,515

$103,217

Average Earnings

$128,308

Average Male

$80,177

Average Female

San Carlos Earnings by Educational Attainment

San Carlos Language by Age

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San Carlos Language

77.78% of San Carlos residents speak only English, while 22.22% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 8.52% of the population.

San Carlos Language

San Carlos Poverty by Race

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Name Total In Poverty Poverty Rate
White20,4295842.86%
Hispanic2,7222007.35%
Asian4,926851.73%
Other768628.07%
Black2483012.10%
Islander541425.93%
Multiple1,81480.44%

3.02%

Overall Poverty Rate

2.13%

Male Poverty Rate

3.83%

Female Poverty Rate

Poverty in San Carlos

The race most likely to be in poverty in San Carlos is Islander, with 25.93% below the poverty level.

The race least likely to be in poverty in San Carlos is Multiple, with 0.44% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.55%. Among those working part-time, it was 6.45%, and for those that did not work, the poverty rate was 7.42%.

San Carlos Poverty

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Name Poverty
Less Than 9th Grade18.67%
High School8.09%
Some College3.86%
Bachelors or Greater1.94%

San Carlos Poverty Rate by Education

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Rate Poverty
Male Unemployed15.79%
Female Unemployed7.78%
Female Employed3.18%
Male Employed1.39%

San Carlos Poverty Rate by Employment Status and Sex

San Carlos Income by Household Type

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Name Median Mean
Households$182,083$239,376
Families$223,177$280,301
Married Families$249,821-
Non Families$85,271$127,249
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Income by Household Type

San Carlos Marital Status

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Marriage Rates

60.4%

Overall Marriage Rate

63.3%

Male Marriage Rate

57.8%

Female Marriage Rate

San Carlos Married by Age and Sex

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San Carlos Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

San Carlos Marital Status by Race

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San Carlos Marital Status

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914

Number of Veterans

878

Male Veterans

36

Female Veterans

War Veterans
Vietnam275
Korea119
First Gulf War100
Second Gulf War100
World War II59

San Carlos Veterans by War

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Age Group Veterans
75+429
65 to 74192
35 to 54171
55 to 64100
18 to 3422

San Carlos Veterans by Age

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Name Veterans % of Total
White8144.77%
Asian541.40%
Hispanic331.68%
2+ Races303.74%
Black145.88%
Native American27.69%

San Carlos Veterans by Race

San Carlos Veterans by Education

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3.61%

Veteran Poverty Rate

29.10%

Veteran Disability Rate

San Carlos Veterans by Education

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72%

Labor Force Participation

69.6%

Employment Rate

3.4%

Unemployment Rate

San Carlos Employment by Age

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San Carlos Employment by Race

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San Carlos Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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53.91%

Born in San Carlos

79.72%

Native Born

20.28%

Foreign Born

7.55%

Non Citizen

12.72%

Naturalized

Place of Birth

79.72% of San Carlos residents were born in the United States, with 53.91% having been born in California. 7.55% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

San Carlos Place of Birth

Year Population Growth Annual Growth Rate
202129,893-146-0.49%
202030,039-146-0.48%
201930,185-146-0.48%
201830,331-62-0.20%
201730,3934991.67%
201629,894-7-0.02%
201529,9011780.60%
201429,7232971.01%
201329,4263041.04%
201229,1223721.29%
201128,7503331.17%
201028,4176990.25%
200027,7181,5510.58%
199026,1671,4570.57%
198024,710-1,343-0.53%
197026,0534,6832.00%
196021,3706,9994.05%
195014,37110,85115.11%
19403,5202,38812.01%
19301,1320.00%

San Carlos Population by Year