94404 ZIP Code — San Mateo, CA

San Mateo County, California

ZIP code 94404 is located in San Mateo, California, within San Mateo County. It covers approximately 4.35 square miles and serves a population of 36,397 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 650.

About ZIP code 94404

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1970s, giving the area an established character. Median home value is $1,592,100. Owner-occupancy sits near the national average at 52%.

The gap between median ($182,699) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 4% is below the national average.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 32 minutes is near the national average. Remote work is prevalent — 26% of workers work from home.

Educational attainment is high — 73% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 94404 reflects a community defined by a highly educated population and a high rate of remote workers.

36,397

population

4.35

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

94404 ZIP code map

Cities in ZIP code 94404

Below are the cities the US Postal Service accepts for ZIP code 94404. Using any city not on this list may result in mail delivery delays.

City	Status
San Mateo	Acceptable
San Mateo	Preferred

Nearby ZIP codes

94065 Redwood City (1.8 mi) 94403 San Mateo (2.1 mi) 94401 San Mateo (3.1 mi) 94497 San Mateo (3.1 mi) 94002 Belmont (3.2 mi) 94402 San Mateo (3.5 mi) 94070 San Carlos (4.1 mi) 94063 Redwood City (4.9 mi) 94010 Burlingame (5.6 mi) 94061 Redwood City (6.5 mi) 94128 San Francisco (7.6 mi) 94030 Millbrae (7.9 mi)

Demographics updated 05/2026

Population
Total population	36,397
Population density	8,367 / sq mi
State FIPS	06
County FIPS	081

Geography
Land area	4.35 sq mi
Water area	0.58 sq mi
Latitude	37.5547
Longitude	-122.2694
Timezone	Pacific (PT)
Area code	650

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	13.9%	18.4%	32.6%
$50k – $100k	15.0%	20.5%	27.7%
$100k – $200k	34.9%	30.5%	26.4%
Over $200k	36.2%	30.6%	13.3%

Demographics & statistics

36,397

Population

8,367

People per sq mi

40.5

Median age

$182,699

Median household income

$91,624

Per capita income

$1,592,100

Median home value

$3,501

Median monthly rent

52.3%

Home ownership

3.9%

Poverty rate

4.1%

Unemployment

8,243

Housing units

73.0%

Bachelor's or higher

Age distribution

Male Female

1,104

Under 5

1,152

1,111

5–9

1,159

1,025

10–14

1,069

814

15–19

848

575

20–24

600

2,598

25–34

2,710

3,080

35–44

3,212

2,272

45–54

2,370

1,003

55–59

1,046

959

60–64

1,001

1,563

65–74

1,630

1,179

75–84

1,230

532

85+

555

← Male

Female →

Age summary

Group	Count	%
Under 18	7,872	21.6%
18 and over	28,525	78.4%
65 and over	6,689	18.4%
Median age	40.5 years

Race & ethnicity

Asian 48.9%

White 34.5%

Two or more races 7.7%

Hispanic or Latino 4.7%

Black or African American 2.1%

Other race 1.6%

American Indian / Alaska Native 0.3%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
Asian	18,681	48.9%
White	13,186	34.5%
Two or more races	2,939	7.7%
Hispanic or Latino	1,805	4.7%
Black or African American	813	2.1%
Other race	611	1.6%
American Indian / Alaska Native	106	0.3%
Native Hawaiian / Pacific Islander	61	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	13.9%	18.4%	32.6%
$50k – $100k	15.0%	20.5%	27.7%
$100k – $200k	34.9%	30.5%	26.4%
Over $200k	36.2%	30.6%	13.3%

Under $10k 2.1%

$10k–$15k 1.6%

$15k–$25k 2.2%

$25k–$35k 2.7%

$35k–$50k 4.3%

$50k–$75k 6.5%

$75k–$100k 7.2%

$100k–$150k 14.5%

$150k–$200k 14.0%

$200k+ 45.0%

Range	% of households
Under $10k	2.1%
$10k–$15k	1.6%
$15k–$25k	2.2%
$25k–$35k	2.7%
$35k–$50k	4.3%
$50k–$75k	6.5%
$75k–$100k	7.2%
$100k–$150k	14.5%
$150k–$200k	14.0%
$200k+	45.0%
Median income	$182,699

Housing

Home values

Under $50k 1.5%

$50k–$100k 0.3%

$100k–$150k 0.2%

$150k–$200k 0.5%

$200k–$300k 0.4%

$300k–$500k 0.5%

$500k–$1M 11.9%

$1M+ 84.6%

Housing overview

Metric	Value
Median home value	$1,592,100
Median rent / month	$3,501
Owner occupied	52.3%
Renter occupied	47.7%
Vacant	4.8%
Single-family detached	31.1%
Large apartment buildings	28.0%
Mobile homes	0.1%
Median rooms	4.5
Avg household size (owned)	2.57

Year built

Era	%
2020 or later	0.3%
2010–2019	7.7%
2000–2009	2.8%
1990–1999	7.7%
1980–1989	16.6%
1970–1979	41.9%
1960–1969	18.7%
1950–1959	2.6%
1940–1949	0.6%
1939 or earlier	1.2%

Bedrooms

Size	% of units
No bedroom (studio)	5.2%
1 bedroom	18.8%
2 bedrooms	28.8%
3 bedrooms	24.9%
4 bedrooms	18.0%
5+ bedrooms	4.3%

Vehicles per household

Vehicles	% of households
No vehicle	5.7%
1 vehicle	37.5%
2 vehicles	41.4%
3 or more	15.4%

Heating fuel

Fuel type	%
Utility gas	54.3%
Electricity	43.4%
Propane / LP gas	1.1%
Wood	0.2%
Solar	0.2%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	8,059	56.1%
Cohabiting couple	650	4.5%
Male householder, no spouse	2,325	16.2%
Female householder, no spouse	3,337	23.2%
Households with children under 18	4,914	34.2%
Households with seniors (65+)	4,441	30.9%
Average household size	2.52

Marital status

Status	Male	Female
Never married	30.3%	21.9%
Married	62.4%	59.1%
Separated	0.7%	2.3%
Widowed	2.4%	8.6%
Divorced	4.1%	8.1%

Education

Less than 9th grade 2.3%

Some HS, no diploma 1.7%

HS graduate 7.2%

Some college, no degree 10.5%

Associate's degree 5.3%

Bachelor's degree 35.8%

Graduate / professional 37.2%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	73.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	759	10.0%
Kindergarten	549	7.2%
Elementary school	3,331	43.9%
High school	1,524	20.1%
College / grad school	1,422	18.7%

Employment

Industry of employment

Professional & management 32.0%

Education & healthcare 13.0%

Manufacturing 11.6%

Information 9.4%

Finance & real estate 8.7%

Retail trade 5.7%

Transportation & utilities 5.3%

Arts, food & hospitality 4.4%

Construction 3.0%

Other services 2.8%

Wholesale trade 2.1%

Public administration 2.0%

Occupation

Category	%
Management, business & arts	73.2%
Service	6.3%
Sales & office	14.7%
Natural resources & construction	2.2%
Production & transportation	3.7%

Employment type

Type	%
Private sector	87.4%
Government	6.0%
Self-employed	6.4%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	56.4%
Carpool	8.5%
Public transit	4.7%
Walk	1.8%
Work from home	25.7%
Other means	2.9%
Avg commute (minutes)	31.8

Poverty

All people 3.9%

Under 18 years 1.6%

18 and over 4.5%

Married-couple families 2.5%

Female-led households 1.8%

Income support

Source	% of households
Social Security	24.4%
Retirement income	20.4%
Supplemental Security	1.7%
Cash public assistance	1.6%
Food stamps / SNAP	1.2%

Health indicators

Condition	%
Obesity	18.1%
High blood pressure	23.3%
High cholesterol	30.6%
Diabetes	7.5%
Heart disease	3.9%
Stroke	1.8%
Asthma	7.6%
Arthritis	16.4%
Kidney disease	2.0%
Pulmonary disease	3.3%
Cancer	5.6%

Behavior / access	%
Smoking	7.0%
Binge drinking	15.3%
No physical activity	13.7%
Less than 7 hrs sleep	27.9%
Depression	12.6%
Fair or poor health	7.9%
Poor mental health	10.3%
Poor physical health	6.1%
No health insurance	6.1%
Visited doctor (checkup)	67.4%
Visited dentist	75.6%
Cholesterol screening	93.4%
Teeth loss	4.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	822	2.9%

Disability	%
Any disability	8.4%
Under 18	1.9%
18–64 years	3.8%
65 and over	31.1%

Health insurance coverage

Type	%
Private insurance	87.6%
Public insurance	21.5%
No insurance	2.1%
Uninsured under 19	1.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	34,141	93.8%
Spanish	5,420	15.9%
Other Indo-European	187	0.5%
Asian & Pacific Islander	908	2.7%
Other languages	4,022	11.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	19,371	53.2%
Born in same state	18,787	51.6%
Born in different state	13,773	37.8%
Foreign born	584	1.6%
Naturalized citizen	17,026	46.8%
Not a US citizen	8,554	50.2%

Ancestry

Ancestry	Count	%
French	1,781	4.9%
Italian	1,608	4.4%
Arab	670	1.8%
Irish	189	0.5%
English	175	0.5%

Ancestry	Count	%
German	113	0.3%
Polish	87	0.2%
Norwegian	65	0.2%
Dutch	45	0.1%

Technology access

Metric	% of households
Computer access	39.5%
Internet access	98.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 94404

What city is ZIP code 94404 in?

ZIP code 94404 is primarily assigned to San Mateo, California.

What county is ZIP code 94404 in?

ZIP code 94404 falls within San Mateo County, California.

How educated is the population of ZIP code 94404?

73% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 94404?

The median household income in ZIP code 94404 is $182,699, above the national median of ~$75,000.

What is the typical home value in ZIP code 94404?

The median home value in ZIP code 94404 is $1,592,100.

What is the population of ZIP code 94404?

ZIP code 94404 has an estimated population of 36,397 residents, with a density of 8,367 people per square mile.

What timezone is ZIP code 94404 in?

ZIP code 94404 observes the PST timezone.