Population & Demographics
South San Francisco, CA
South San Francisco is home to 64,305 people. Explore its demographics, housing, and economy — plus how its 34,868 resident workers commute each day.
64,305 residents
Median age 43.2 · U.S. Census Bureau, ACS 5-Year (2024).
South San Francisco population & demographics
Who lives in South San Francisco — population, age, housing, and income, from the U.S. Census Bureau.
Source: U.S. Census Bureau, American Community Survey (ACS) 2024 5-Year Estimates. Values shown as “—” are suppressed or unavailable for this place.
Race & ethnicity in South San Francisco
How South San Francisco breaks down by race and ethnicity — each bar is that group’s share of the population, from the U.S. Census Bureau ACS 5-Year (2024).
Race across South San Francisco
Each dot is a group of people, placed in their 2020 Census block and colored by race or ethnicity — the pattern shows where groups live across South San Francisco.
These figures are for South San Francisco proper — the Census place within its city limits — not the surrounding metro area. Metro-wide totals you’ll see elsewhere are larger because they bundle in neighboring cities and suburbs.
How South San Francisco commutes
Every dot is a worker moving between home and job. Trace where the area pulls people in from — and where its residents head each day.
55 / 100
How short the typical commute is here, on an absolute 0–100 scale (higher is shorter). How it’s calculated.
South San Francisco
34,868 commutes, one dot at a time
South San Francisco
Where 34,868 workers commute
Where residents work
Top destinations for people who live in South San Francisco, by worker count.
Who commutes in
Top origin places for workers who travel into South San Francisco.
Top industries
The sectors that employ South San Francisco’s workforce. Each bar is scaled to that sector’s share of all local jobs — the top sectors shown don’t add up to 100%.
Internet options for South San Francisco
The biggest home-internet providers in the area — tap any to compare local plans.
FindBetterInternet is a CensusFlow partner site — we link out so you can compare local plans, and CensusFlow’s Census data stays independent. Provider data is from the FCC National Broadband Map (satellite + fixed wireless excluded).