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Population & Demographics

ZIP Code 94401 has 35,249 residents and 12,874 households (average 2.69 persons per household). The median age is 37.0 years, about the same as the state (37.5) and slightly younger than the nation (38.8). The gender split is 50.2% male and 49.8% female, which is slightly higher than the national male share (49.1%). Largest groups are Hispanic or Latino (37.9%) and White (32.8%, much lower than the state average of 41.2% and well below the national average of 61.6%); Hispanic or Latino residents make up 37.9%, which is much higher than the national average (18.7%), and Asian share is much higher than the national average (6.0%) and Other / Two or More Races share is much higher than the national average (8.4%).

Explore More:Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.

2020 Population:	35,249Source: Census DHC
2024 ACS Population Estimate:	35,295Source: Census ACS
2026 ZC Population Estimate:	37,130Source: ZIP-Codes.com
Population Density:	11,330.4 people per sq mile
Average Income:	$122,227Source: Census ACS

Households:	12,874Source: Census DHC
Average House Value:	$1,184,500Source: Census ACS
Persons Per Household:	2.69Source: Census DHC
Average Family Size:	3.29Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)

Line chart of ZIP 94401 population estimates from 2011-2024, with markers for the 2010 and 2020 Decennial Census counts to show growth or decline over time. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2010	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Census ACS Population Estimate	--	34,845	35,721	36,691	36,838	37,298	36,597	36,145	35,414	36,001	35,013	35,095	35,392	35,628	35,295
Decennial Census	34,429	--	--	--	--	--	--	--	--	--	35,249	--	--	--	--

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)

Median Age: 37

Male Median Age: 35.7

Female Median Age: 38.5

Line chart for ZIP 94401 showing total, male, and female population by age group. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	< 5	5-9	10-14	15-19	20-24	25-29	30-34	35-39	40-44	45-49	50-54	55-59	60-64	65-69	70-74	75-79	80-84	85+
Male	1,037	979	951	1,012	1,083	1,594	1,928	1,643	1,275	1,129	1,117	970	817	736	551	346	230	284
Female	955	856	862	873	925	1,461	1,719	1,546	1,234	1,089	1,112	1,054	869	802	703	505	370	632
Total	1,992	1,835	1,813	1,885	2,008	3,055	3,647	3,189	2,509	2,218	2,229	2,024	1,686	1,538	1,254	851	600	916

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Pie Chart & Table Comparison Chart

Population by Race

Pie chart of the racial and ethnic makeup of ZIP 94401. Table below includes counts and percentages. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

White:	11,554	26.18%
Black:	850	1.93%
Hispanic:*	13,370	30.30%
Asian:	7,873	17.84%
American Indian:	474	1.07%
Hawaiian:	1,071	2.43%
Other:	8,937	20.25%
Total:	44,129	100%

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Pie Chart & Table Comparison Chart

Gender Breakdown

Simple chart showing male vs female share of the population in ZIP Code 94401. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Gender	Count	%	Median Age
Males:	17,682	50.16%	35.7 years
Females:	17,567	49.84%	38.5 years
Total:	35,249	100%	37.0 years

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship

Pie chart showing nativity in ZIP 94401. Categories include native residents (born in the United States, Puerto Rico, U.S. Island Areas, or abroad to American parents) and foreign-born residents. A table below lists counts and percentages. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Native, born in the United States:	20,835	59.03%
Native, born in PR, Island Areas, or abroad:	389	1.10%
Foreign born, naturalized U.S. citizen:	6,047	17.13%
Foreign born, not a U.S. citizen:	8,024	39.87%
Total Population:	35,295	100%
Total Native Population:	21,224	60.13%
Total Foreign-born Population:	14,071	39.87%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment

In 2024, the Median household income is $122,227, which is far above the national median ($80,734), is up $49,775 (68.7%) since 2011 and above its 2019 pre-pandemic level by $28,377. Family households earn a median of $130,841 versus $88,558 for nonfamily households (a difference of $42,283). By gender, male median income is $88,008 and female is $85,994, which is far above the national female median ($55,274), with a current gap of $2,014 that has widened from 2011 to 2024. The labor-force participation rate is 67.6%, which is higher than the national rate (63.5%). The unemployment rate is 3.6%, which is better than the national rate (5.2%). The largest occupation group is Management (47.6%).

Explore More:Income Over Time Household Income Employment Status By Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)

Line chart showing median income in ZIP 94401 from 2011-2024 for five series: household, family, nonfamily, male, and female. The table below lists the yearly values. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Income Type	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Median Household Income	$72,452	$73,023	$69,832	$72,279	$72,800	$76,361	$81,608	$89,176	$93,850	$94,334	$104,260	$117,678	$121,258	$122,227
Median Family Income	$85,665	$83,415	$81,941	$84,158	$82,556	$80,588	$89,019	$100,323	$107,480	$103,985	$116,295	$135,461	$124,875	$130,841
Median NonFamily Income	$59,800	$59,044	$54,262	$53,554	$54,769	$55,163	$63,039	$71,772	$72,807	$74,719	$78,147	$87,326	$88,110	$88,558
Median Male Income	$45,924	$41,972	$43,598	$44,093	$46,207	$48,672	$54,674	$67,941	$62,121	$77,944	$82,825	$87,126	$85,662	$88,008
Median Female Income	$50,744	$49,479	$47,273	$49,026	$49,136	$49,961	$54,950	$63,763	$71,197	$74,082	$78,573	$84,933	$84,688	$85,994

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income

Bar chart showing average household income comparing ZIP 94401, city of San Mateo, San Mateo County, state of California, and United States national values. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Pie Chart & Table Comparison Chart

Employment Status

Pie chart of employment status for ZIP 94401, showing the shares who are employed, unemployed, and not in the labor force. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Employed:	19,106	65.19%
Unemployed:	710	2.42%
Not In Labor Force:	9,490	32.38%
Total:	29,306	100%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)

Donut Chart showing the distribution of employed civilians aged 16 and over by occupation category: management, service, sales and office, natural resources and construction, and production and transportation. A table with the same data and percentages is provided as well.Load Chart Manually (if needed)

Management, business, science, and arts:	9,092	47.59%
Service:	3,487	18.25%
Sales and Office:	3,070	16.07%
Natural resources, construction, and maintenance:	1,865	9.76%
Production, transportation, and material moving:	1,592	8.33%
Total Civilian Employed Population:	19,106	100%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability

In 2024, the median home value is $1,184,500, which is markedly greater than the national median ($332,700), is up $571,300 (93.17%) since 2011 and above its 2019 pre-pandemic level by $351,500. The median gross rent is $2,762, which is far above the national median ($1,413), is up $1,301 (89.05%) since 2011 and above its 2019 pre-pandemic level by $496. Of occupied housing, owners make up 43.42% (66.85% with a mortgage, 33.15% free-and-clear) and renters 56.58% - making this ZIP Code higher than national rental averages. The vacancy rate is 5.73%, which is much lower than the national rate (10.12%).

Explore More:Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)

Bar chart showing the median home value for ZIP 94401, compared with San Mateo, San Mateo County, state of California, and the U.S. National Average. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time

Line chart showing median home values for ZIP 94401 across years 2011-2024 using ACS 5-year estimates. The chart displays the typical dollar value of owner-occupied housing units. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Median Home Value	$613,200	$588,800	$570,500	$573,100	$592,300	$647,800	$697,600	$770,000	$833,000	$874,300	$944,300	$1,093,400	$1,123,300	$1,184,500

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid

Pie chart of gross rent for renter-occupied homes in ZIP 94401, showing monthly rent brackets and the share of units in each range. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Less than $500:	172	2.33%
$500 to $999:	122	1.66%
$1,000 to $1,499:	450	6.11%
$1,500 to $1,999:	949	12.88%
$2,000 to $2,499:	1,238	16.80%
$2,500 to $2,999:	1,311	17.79%
$3,000 or more:	2,994	40.62%
No Rent:	134	1.82%
Total:	7,370	100%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time

Line chart displaying median gross rent for ZIP 94401 over the years 2011-2024 using ACS 5-year estimates. The chart represents typical monthly housing costs for renter households. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Median Rent	$1,461	$1,505	$1,524	$1,591	$1,586	$1,661	$1,789	$2,098	$2,266	$2,345	$2,453	$2,649	$2,713	$2,762

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy

Pie chart showing housing occupancy for ZIP 94401. Categories include owner-occupied units with a mortgage, owner-occupied units free and clear, and renter-occupied units. A table below lists counts and percentages. Vacant housing units are shown separately in the Vacancy chart. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Owner Occupied (with mortgage):	3,781	29.03%
Owner Occupied (free and clear, no mortgage):	1,875	14.39%
Renter Occupied:	7,370	56.58%
Total Occupied Housing Units:	13,026	100%

Occupied Housing Units:	13,026	94.27%
Vacant Housing Units (not graphed):	792	5.73%
Total Housing Units:	13,818	100%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)

Pie chart showing housing type distribution for ZIP 94401. Categories include single-family units (detached or attached), multi-family units (from 2 units up to 50 or more units), and other structures such as mobile homes or boats/RVs. A table below lists counts and percentages for each group.Load Chart Manually (if needed)

Single-Family Units:	5,381	38.94%
Multi-Family Units:	8,378	60.63%
Other Units:	59	0.43%
Total Housing Units:	13,818	100%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community

In 2024, 46.30% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.70%). High school or higher is 85.20%, which is falls below the national rate (89.60%). The uninsured rate is 5.40%, which is falls below the national rate (8.40%). The share of people in poverty is 8.30%, which is comparable to the national rate (8.80%), up 2.60 percentage points since 2011 and above its 2019 pre-pandemic level by 0.50 percentage points. This points to rising hardship - a weaker consumer base, greater strain on public services, and job-market headwinds. Among residents ages 3+, the largest enrollment group is college (36.89%). College enrollment is 36.89%, which is far higher than the national rate (26.70%), indicating the community is likely a college hub with student-driven housing and services.

Explore More:Educational Attainment Health Insurance Poverty Over Time School Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)

Pie chart of educational attainment for adults (25+) in ZIP 94401, including each level from less than 9th grade to graduate/professional. Summary rows show high school or higher and bachelor's or higher. A table lists counts and percentages.Load Chart Manually (if needed)

Less than 9th grade:	2,785	11.04%
9th to 12th grade, no diploma:	954	3.78%
High school graduate (includes equivalency):	3,817	15.14%
Some college, no degree:	3,916	15.53%
Associate's degree:	2,081	8.25%
Bachelor's degree:	6,994	27.74%
Graduate or professional degree:	4,669	18.52%
Total:	25,216	100%
High school or higher:	21,477	85.17%
Bachelor's degree or higher:	11,663	46.25%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Pie Chart & Table Comparison Chart

Health Insurance Coverage by Type (Private, Public, Uninsured)

Pie chart illustrating health insurance coverage by type for ZIP Code 94401. Categories include private insurance, public coverage such as Medicare and Medicaid, and individuals with no health insurance. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Private Insurance:	24,469	61.74%
Public Insurance:	13,276	33.50%
No Insurance:	1,886	4.76%
Total:	39,631	100%
Has Health Insurance:	37,745	95.24%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)

Line chart displaying the share of families and people in ZIP 94401 whose income falls below the federal poverty threshold, using ACS 5-year estimates from 2011 through 2024. The chart shows year-to-year changes in the percentage of people in poverty. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
% of People in Poverty	4.6%	5.8%	7.8%	7.6%	7.8%	8.3%	8.3%	6.2%	6.7%	7.9%	7.6%	7.1%	7.2%	8.3%

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)

Pie Chart showing enrollment of residents ages 3 and older in Nursery School or Preschool, Kindergarten, Elementary (grades 1-8), High School (grades 9-12), and College or Graduate School. A table with the same data and percentages is provided as well.Load Chart Manually (if needed)

Nursery School, Preschool:	358	4.18%
Kindergarten:	312	3.64%
Elementary school (grades 1-8):	2,940	34.30%
High school (grades 9-12):	1,800	21.00%
College or graduate school:	3,162	36.89%
Total:	8,572	100%
Early Childhood:	670	7.82%
K-12 (Primary & Secondary School):	5,052	58.94%

Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

City:	San Mateo, California
County:	San Mateo County
Timezone:	Pacific (GMT -08:00)
Local Time:	9:52:00 AM
Population:	35,249 [See All]
Area Code:	650
Classification:	Standard [Normal Street Delivery]
Coordinates:	37.5742, -122.3194
Land Area:	3.111 sq mi
Quick Link:	https://www.zip-codes.com/zip-code/94401/zip-code-94401.asp

# Residential Mailboxes:	13,803Source: USPS
# Business Mailboxes:	1,276Source: USPS
Total Delivery Receptacles:	15,675Source: USPS
Single Family Delivery Units:	5,605Source: USPS
Multi Family Delivery Units:	7,819Source: USPS

# of Businesses:	1,162Source: CBP
1st Quarter Payroll:	$410,971,000Source: CBP
Annual Payroll:	$1,548,069,000Source: CBP
# of Employees:	15,587Source: CBP

CBSA Name:	San Francisco-Oakland-Fremont, CASource: Census
CBSA Number:	41860Source: Census
CBSA Type:	MetroSource: Census
CBSA Division:	San Francisco-San Mateo-Redwood City, CA (CBSA Div 41884)Source: Census
CBSA Population:	4,335,391Source: Census
MSA:	San Francisco-Oakland-San Jose, CA CMSASource: Census
Land Area:	3.111 sq miSource: Census
Water Area:	0.001 sq miSource: Census

Congressional District:	15Source: USPS
Congressional Land Area:	599.45 sq miSource: Census
PMSA:	San Francisco, CA PMSASource: Census
Intro Date:	< 2004-10Source: ZIP-Codes.com
Place FIPS Code:	0668252Source: Census
Place Name:	San Mateo city; CaliforniaSource: Census

ZIP Code 94401 in San Mateo, CA

Population & Demographics

Population Over Time (with 2010 & 2020 Census Benchmarks)

Population by Age & Gender (Total, Male, Female)

Population by Race

Gender Breakdown

Nativity & Citizenship

Income & Employment

Median Income Over Time (Household, Family, Nonfamily, Male, Female)

Average Household Income

Employment Status

Employment by Occupation (Civilian Employed Population, 16 and Over)

Housing & Affordability

Median Home Value (Comparison)

Median Home Value Over Time

Gross Rent Paid

Median Gross Rent Over Time

Housing Occupancy

Housing Type (Single-Family, Multi-Family, Other)

Education, Health & Community

Educational Attainment of Adults (25 and Older)

Health Insurance Coverage by Type (Private, Public, Uninsured)

Percentage of People in Poverty Over Time (2011-2024)

School Enrollment by Education Level (Ages 3 and Older)

Business & Employment Statistics

Geography, Land Area, & Statistical Classifications

Adjacent & Nearby ZIP Codes

Schools in ZIP Code 94401

Colleges & Post Secondary Schools near ZIP Code 94401

Sources & References