South San Francisco Population

1910–2026

64,583

2026 projection

2% since 2020 (decrease)

010K20K30K40K50K60K70K192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for South San Francisco. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202664,583-3580.55%
202564,941+4600.71%
202464,481+7551.18%
202363,726+3560.56%
202263,370-4830.76%
202163,853-2,0603.13%
202065,913-8961.34%
201966,809-220.03%
201866,831-1800.27%
201767,011-1360.20%

Showing 10 of 27 years.

South San Francisco Demographics

43.2median age

Median age

Female44.3 yrs
Male42.4 yrs

Adults

53,230
12,320 seniors · 23%40,910 other adults

Sex

Female 49.9% · 32,068Male 50.1% · 32,237

Population by age

MaleFemale85+ years, male: 46685+ years, female: 1,13280–84 years, male: 60380–84 years, female: 73175–79 years, male: 80975–79 years, female: 86370–74 years, male: 1,40370–74 years, female: 2,07165–69 years, male: 2,01565–69 years, female: 2,22760–64 years, male: 1,94560–64 years, female: 2,34355–59 years, male: 2,57355–59 years, female: 2,35150–54 years, male: 2,19150–54 years, female: 1,84145–49 years, male: 2,75045–49 years, female: 2,16840–44 years, male: 2,29140–44 years, female: 2,29135–39 years, male: 2,75535–39 years, female: 2,55530–34 years, male: 2,09530–34 years, female: 2,21725–29 years, male: 2,10025–29 years, female: 1,66520–24 years, male: 1,56720–24 years, female: 1,83815–19 years, male: 1,70015–19 years, female: 1,64610–14 years, male: 1,83310–14 years, female: 1,3425–9 years, male: 1,7445–9 years, female: 1,4590–4 years, male: 1,3970–4 years, female: 1,32885+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 643 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

South San Francisco Income

$136,578median household income

Median household income

$136,578

Half of households earn more, half earn less

Median earnings

$66,854

Typical yearly pay for a worker 25 or older.

Poverty rate

6.7%

About 1 in 15 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

South San Francisco Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%50%47%
Never married36%39%33%
Divorced8%8%9%
Widowed6%3%9%
Separated2%1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year