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San Mateo city, CA

ZIP 94401 — People & Community

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

Upper Middle ClassLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 94401

94401 has a population of 35,628 with a median age of 35.9 yrs (49.9% male).

Race & Ethnicity
White
32.4%-47% vs US avg
x
Black
1.2%-90% vs US avg
x
Asian
24.8%+320% vs US avg
x
Hispanic
37.8%+102% vs US avg
x
Other / Two+
3.8%
x
Age Groups
0–17
18.9%-14% vs US avg
x
18–64
65.0%+5% vs US avg
x
65+
16.1%-1% vs US avg
x
Education
Less than HS
15.3%+38% vs US avg
x
High school
14.9%-43% vs US avg
x
Some college
24.5%-15% vs US avg
x
Bachelor's+
45.3%+34% vs US avg
x
Marital Status
Married
41.9%-13% vs US avg
x
Never married
41.7%+23% vs US avg
x
Divorced
10.2%-1% vs US avg
x
Widowed / Separated
6.2%
x
Diversity Index
69/100

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

Social & household profile

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

Poverty Rate
10.9%-5% vs US avg
x
Foreign Born
32.4%+133% vs US avg
x
Veterans
2.0%-66% vs US avg
x
Disability
10.5%-22% vs US avg
x
Single Parent
10.1%+24% vs US avg
x
Recent Births
45.6%+686% vs US avg
x
Top ancestry
IrishItalianGerman

Health & Community Indicators in 94401

Poverty Rate
10.9%-5% vs US avg
x
Veterans
2.0%-66% vs US avg
x
Foreign Born
32.4%+133% vs US avg
x
Single Parent
10.1%+24% vs US avg
x
Disability
10.5%-22% vs US avg
x
Uninsured
6.9%-14% vs US avg
x
SNAP Benefits
5.7%-51% vs US avg
x
Private School
0.4%-96% vs US avg
x
Recent Births
45.6%+686% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population35,628
Median age35.9
Poverty rate10.9%
Demographics statistics
Demographics
White32.4%
Hispanic37.8%
Black1.2%
Asian24.8%
Foreign-born32.4%