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ZIP 94404 · San Mateo

Who lives in ZIP code 94404 (San Mateo, CA): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

San Mateo, CA · San Mateo County

uszips 2026
People35,881
Median age39.8
Household income$192,332
Home value$1,710,182
Median rent$3,501/mo
Poverty4.3%
College degree+74.2%
Commute29 min

Place

Metro area
San Francisco-Oakland-Fremont, CA
Wider region
San Jose-San Francisco-Oakland, CA
Metro division
San Francisco-San Mateo-Redwood City, CA
Time zone
Pacific
Density
3,185 / sq mi
Housing units
14,717

County

San Mateo100%

Share of the ZIP's people in each county.

Age mix

Under 1012.3%
10–1910.2%
20s9.2%
30s18.5%
40s14.4%
50s12.1%
60s9.3%
70s7.3%
80+6.6%

17.8% are 65 or older; 78.7% are adults.

Household income

Under $25K5.8%
$25K–50K6.6%
$50K–75K7.0%
$75K–100K6.3%
$100K–150K14.1%
$150K+60.2%

74.3% of households earn $100K+. Median per person: $106,224.

Education (adults 25+)

Less than high school3.8%
High school7.0%
Some college15.0%
Bachelor's33.8%
Graduate40.4%

68.8% of degrees are in STEM fields.

Race

White31.5%
Black2.0%
Asian52.6%
Native American0.3%
Pacific Islander0.1%
Other3.5%
Two or more10.0%

7.4% Hispanic or Latino (of any race).

Households & family

Married
59.3%
Never married
28.1%
Divorced
7.1%
Widowed
5.5%
Family size
2.99
Dual-income families
56.1%

Housing

Own their home
51.2%
Rent burden
25.5%
Men / women
48% / 52%

Work

In labor force
67.6%
Unemployment
4.6%
Self-employed
14.7%
Farmers
0.0%

Community

Charitable givers
46.0%
Veterans
2.4%
With a disability
8.7%
No health insurance
2.2%
Limited English
11.5%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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