South San Francisco, California Population 2021

68,133
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South San Francisco is a city located in California. With a 2020 population of 68,133, it is the 130th largest city in California and the 547th largest city in the United States. South San Francisco is currently growing at a rate of 0.25% annually and its population has increased by 7.07% since the most recent census, which recorded a population of 63,632 in 2010. South San Francisco reached it's highest population of 68,133 in 2021. Spanning over 30 miles, South San Francisco has a population density of 7,385 people per square mile.

The average household income in South San Francisco is $129,305 with a poverty rate of 6.91%. The median rental costs in recent years comes to $2,105 per month, and the median house value is $844,000. The median age in South San Francisco is 40.4 years, 39.1 years for males, and 41.8 years for females. For every 100 females there are 96.6 males.

South San Francisco Demographics

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

  • Asian: 40.78%
  • White: 34.55%
  • Other race: 15.53%
  • Two or more races: 5.90%
  • Black or African American: 1.84%
  • Native Hawaiian or Pacific Islander: 1.10%
  • Native American: 0.30%
The current population of South San Francisco, California is 68,133, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 67,617.The last official US Census in 2010 recorded the population at 63,632.

South San Francisco, California Population 2021

Population by Race

Race Population Percentage
Asian27,49040.78%
White23,28834.55%
Some Other Race10,46615.53%
Two or More Races3,9795.90%
Black or African American1,2431.84%
Native Hawaiian and Other Pacific Islander7391.10%
American Indian and Alaska Native2030.30%
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South San Francisco Population by Race

South San Francisco Population Pyramid 2021

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South San Francisco Median Age

40.4


Total

39.1


Male

41.8


Female

South San Francisco Adults

There are 55,022 adults, (10,903 of whom are seniors) in South San Francisco.

South San Francisco Age Dependency

52.8

Age Dependency Ratio

24.7

Old Age Dependency Ratio

28.1

Child Dependency Ratio

South San Francisco Sex Ratio

Female

34,287

50.86%

Male

33,121

49.14%

South San Francisco Population by Age

South San Francisco Renter vs Owner Occupied by Household Type

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South San Francisco Household Types

Type Owner Renter
Married71.5%28.5%
All61.2%38.8%
Female52%48%
Non Family47.9%52.1%
Male43.4%56.6%

61.2%

Rate of Home Ownership

South San Francisco Households and Families

Type Count Average Size Owned
All21,3303.1261.2
Married11,7723.6271.5
Non Family5,2401.5347.9
Female2,8663.8852
Male1,4523.3543.4

3.49

Average Family Size

3.12

Average Household Size

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South San Francisco Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3,8867.87%
9th to 12th Grade2,9585.99%
High School Graduate10,44221.14%
Some College10,12420.50%
Associates Degree4,3708.85%
Bachelors Degree13,05326.43%
Graduate Degree4,5519.22%
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South San Francisco Educational Attainment by Sex (over 25)

South San Francisco Educational Attainment by Race

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Name Total High School Bachelors
Asian20,90618,78710,901
Hispanic14,17310,4572,521
White11,33110,6263,476
Other Race6,5794,546903
Multiple Races2,4622,305534
Black993915302
Islander60243698
Native American20217959

The highest rate of high school graduation is among white people with a rate of 93.78%.

The highest rate of bachelors degrees is among asian people with a rate of 52.14%.

South San Francisco Educational Attainment by Race

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Name Average Male Female
Overall$52,653$56,394$48,436
Less Than High School$32,645$40,159$25,439
High School Grad$37,606$41,623$28,941
Some College$48,817$51,270$47,648
Bachelors Degree$66,563$75,252$62,516
Graduate Degree$109,283$116,944$101,944

$52,653

Average Earnings

$56,394

Average Male

$48,436

Average Female

South San Francisco Earnings by Educational Attainment

South San Francisco Language by Age

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South San Francisco Language

43.32% of South San Francisco residents speak only English, while 56.68% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 27.03% of the population.

South San Francisco Language

South San Francisco Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic22,2431,8548.34%
White13,4611,2819.52%
Asian27,4741,2324.48%
Other10,3059679.38%
Multiple3,91742910.95%
Black1,22813911.32%
Native2023014.85%
Islander739243.25%

6.91%

Overall Poverty Rate

5.82%

Male Poverty Rate

7.97%

Female Poverty Rate

Poverty in South San Francisco

The race most likely to be in poverty in South San Francisco is Native, with 14.85% below the poverty level.

The race least likely to be in poverty in South San Francisco is Islander, with 3.25% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.35%. Among those working part-time, it was 9.60%, and for those that did not work, the poverty rate was 12.86%.

South San Francisco Poverty

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Name Poverty
Less Than High School13.58%
High School8.54%
Some College5.32%
Bachelors or Greater3.62%

South San Francisco Poverty Rate by Education

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Name Poverty
Female Unemployed27.98%
Male Unemployed14.70%
Female Employed3.72%
Male Employed2.83%

South San Francisco Poverty Rate by Employment Status and Sex

South San Francisco Income by Household Type

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Name Median Mean
Households$105,459$129,305
Families$112,057$135,670
Married Families$128,972-
Non Families$68,889$97,478
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Income by Household Type

South San Francisco Marital Status

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Marriage Rates

50.4%

Overall Marriage Rate

51.2%

Male Marriage Rate

49.7%

Female Marriage Rate

South San Francisco Married by Age and Sex

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South San Francisco Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

South San Francisco Marital Status by Race

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South San Francisco Marital Status

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2,350

Number of Veterans

2,176

Male Veterans

174

Female Veterans

War Veterans
Vietnam721
First Gulf War454
Second Gulf War345
Korea262
World War II110

South San Francisco Veterans by War

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Age Group Veterans
75+683
35 to 54620
65 to 74536
55 to 64398
18 to 34113

South San Francisco Veterans by Age

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Name Veterans % of Total
White1,6048.13%
Hispanic5813.50%
Asian3681.61%
Black16614.90%
2 or More1063.90%
Other891.16%
Indian178.42%

South San Francisco Veterans by Race

South San Francisco Veterans by Education

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3.49%

Veteran Poverty Rate

24.68%

Veteran Disability Rate

South San Francisco Veterans by Education

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69.4%

Labor Force Participation

67.3%

Employment Rate

3%

Unemployment Rate

South San Francisco Employment by Age

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South San Francisco Employment by Race

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South San Francisco 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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50.69%

Born in California

59.67%

Native Born

40.33%

Foreign Born

11.84%

Non Citizen

28.49%

Naturalized

Place of Birth

59.67% of South San Francisco residents were born in the United States, with 50.69% having been born in California. 11.84% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

South San Francisco Place of Birth

Year Population Growth Annual Growth Rate
202168,1331720.25%
202067,9611720.25%
201967,7891720.25%
201867,6174370.65%
201767,180-40-0.06%
201667,220-1-0.00%
201567,2214080.61%
201466,8135760.87%
201366,2376561.00%
201265,5811,1331.76%
201164,4487471.17%
201063,7013,1490.51%
200060,5526,2401.09%
199054,3124,9190.95%
198049,3932,7470.57%
197046,6467,2281.70%
196039,41820,0677.37%
195019,35112,72211.31%
19406,6294360.68%
19306,1931,7823.45%
19204,4112,4228.29%
19101,9890.00%

South San Francisco Population by Year