US5.com
  1. Home
  2. States
  3. California
  4. ZIP 94403
  5. People & Community
San Mateo city, CA

ZIP 94403 — 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 94403

94403 has a population of 43,459 with a median age of 38.5 yrs (50.9% male).

Race & Ethnicity
White
43.0%-30% vs US avg
x
Black
1.6%-87% vs US avg
x
Asian
29.0%+392% vs US avg
x
Hispanic
24.1%+29% vs US avg
x
Other / Two+
2.3%
x
Age Groups
0–17
19.3%-12% vs US avg
x
18–64
65.3%+6% vs US avg
x
65+
15.4%-5% vs US avg
x
Education
Less than HS
8.0%-28% vs US avg
x
High school
11.3%-57% vs US avg
x
Some college
20.4%-30% vs US avg
x
Bachelor's+
60.3%+79% vs US avg
x
Marital Status
Married
57.1%+19% vs US avg
x
Never married
31.9%-6% vs US avg
x
Divorced
6.7%-35% vs US avg
x
Widowed / Separated
4.3%
x
Diversity Index
67/100

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

Social & household profile

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

Poverty Rate
6.4%-45% vs US avg
x
Foreign Born
36.2%+160% vs US avg
x
Veterans
3.0%-50% vs US avg
x
Disability
8.5%-36% vs US avg
x
Single Parent
3.6%-56% vs US avg
x
Recent Births
60.1%+937% vs US avg
x
Top ancestry
GermanIrishItalian

Health & Community Indicators in 94403

Poverty Rate
6.4%-45% vs US avg
x
Veterans
3.0%-50% vs US avg
x
Foreign Born
36.2%+160% vs US avg
x
Single Parent
3.6%-56% vs US avg
x
Disability
8.5%-36% vs US avg
x
Uninsured
3.1%-61% vs US avg
x
SNAP Benefits
3.0%-74% vs US avg
x
Private School
0.5%-95% vs US avg
x
Recent Births
60.1%+937% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population43,459
Median age38.5
Poverty rate6.4%
Demographics statistics
Demographics
White43.0%
Hispanic24.1%
Black1.6%
Asian29.0%
Foreign-born36.2%