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Foster City city, CA

ZIP 94404 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Wealthy AreaLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 94404

94404 has a population of 35,950 with a median age of 40.1 yrs (48.4% male).

Race & Ethnicity
White
34.7%-44% vs US avg
x
Black
1.7%-86% vs US avg
x
Asian
52.1%+783% vs US avg
x
Hispanic
6.8%-64% vs US avg
x
Other / Two+
4.8%
x
Age Groups
0–17
21.5%-2% vs US avg
x
18–64
60.5%-2% vs US avg
x
65+
18.1%+11% vs US avg
x
Education
Less than HS
4.1%-63% vs US avg
x
High school
6.1%-77% vs US avg
x
Some college
15.2%-47% vs US avg
x
Bachelor's+
74.5%+121% vs US avg
x
Marital Status
Married
61.2%+27% vs US avg
x
Never married
26.9%-20% vs US avg
x
Divorced
6.2%-40% vs US avg
x
Widowed / Separated
5.7%
x
Diversity Index
60/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
4.7%-59% vs US avg
x
Foreign Born
42.1%+203% vs US avg
x
Veterans
2.8%-54% vs US avg
x
Disability
8.8%-34% vs US avg
x
Single Parent
6.8%-16% vs US avg
x
Recent Births
54.5%+839% vs US avg
x
Top ancestry
EnglishGermanIrish

Health & Community Indicators in 94404

Poverty Rate
4.7%-59% vs US avg
x
Veterans
2.8%-54% vs US avg
x
Foreign Born
42.1%+203% vs US avg
x
Single Parent
6.8%-16% vs US avg
x
Disability
8.8%-34% vs US avg
x
Uninsured
2.3%-71% vs US avg
x
SNAP Benefits
1.5%-87% vs US avg
x
Private School
0.9%-91% vs US avg
x
Recent Births
54.5%+839% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population35,950
Median age40.1
Poverty rate4.7%
Demographics statistics
Demographics
White34.7%
Hispanic6.8%
Black1.7%
Asian52.1%
Foreign-born42.1%