ZIP Code Tabulation Area · California

ZIP Code 94401: San Mateo, CA

ZIP Code 94401 (San Mateo, San Mateo County, California) has an estimated 35,295 residents in 13,026 households. The median household income is $122,227, the median home value is $1,184,500 and the median gross rent is $2,762/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

35,295

Margin of error ±1,679

Median household income

$122,227

Margin of error ±$14,686

Median home value

$1,184,500

Margin of error ±$67,503

Median gross rent

$2,762/mo

Margin of error ±$133

Median age

35.9 yrs

Margin of error ±1.4 yrs

Mean travel time to work

25.7 min

Margin of error ±3.1 min

How ZIP 94401 compares with California and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 9440135.9 yrsCalifornia37.9 yrsUnited States38.9 yrs

Median household income

ZIP 94401$122,227California$99,122United States$80,734

Per capita income

ZIP 94401$63,426California$49,513United States$44,673

Poverty rate

ZIP 9440112.2%California12.0%United States12.5%

Unemployment rate

ZIP 944013.6%California6.6%United States5.2%

Bachelor's degree or higher

ZIP 9440146.3%California37.1%United States35.7%

Median home value

ZIP 94401$1,184,500California$734,700United States$332,700

Median gross rent

ZIP 94401$2,762/moCalifornia$2,036/moUnited States$1,413/mo

Owner-occupied homes

ZIP 9440143.4%California55.9%United States65.2%

Mean travel time to work

ZIP 9440125.7 minCalifornia28.7 minUnited States26.4 min

Worked from home

ZIP 9440120.8%California17.2%United States15.1%

All figures for ZIP 94401

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 94401 — ACS 2020–2024 5-year estimates
MeasureZIP 94401Margin of errorCaliforniaUnited States
Total population35,295±1,67939,287,377334,922,499
Median age35.9 yrs±1.4 yrs37.9 yrs38.9 yrs
Households13,026±60913,548,091129,227,496
Median household income$122,227±$14,686$99,122$80,734
Per capita income$63,426±$4,156$49,513$44,673
Poverty rate12.2%±2.6 pts12.0%12.5%
Unemployment rate3.6%±1.0 pts6.6%5.2%
Bachelor's degree or higher46.3%±3.3 pts37.1%35.7%
Median home value$1,184,500±$67,503$734,700$332,700
Median gross rent$2,762/mo±$133$2,036/mo$1,413/mo
Owner-occupied homes43.4%±3.1 pts55.9%65.2%
Mean travel time to work25.7 min±3.1 min28.7 min26.4 min
Worked from home20.8%±2.6 pts17.2%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 94401
GroupZIP 94401CaliforniaUnited States
White alone, not Hispanic or Latino25.1%33.8%57.4%
Black or African American alone, not Hispanic or Latino1.3%5.2%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.3%0.3%0.5%
Asian alone, not Hispanic or Latino24.1%15.3%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino2.7%0.3%0.2%
Some other race alone, not Hispanic or Latino1.5%0.6%0.6%
Two or more races, not Hispanic or Latino6.8%4.4%4.3%
Hispanic or Latino (of any race)38.0%40.2%19.3%

Where ZIP 94401 is

State
California
Main county
San Mateo County
Largest overlapping place
San Mateo (100% of the ZIP's land area)
Land area
3.11 sq mi· about 11,349 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in San Mateo County

94015 Daly City, CA94018 El Granada, CA94019 San Mateo County, CA94020 San Mateo County, CA94021 San Mateo County, CA94025 Menlo Park, CA94027 Atherton, CA94028 Portola Valley, CA94030 Millbrae, CA94037 Montara, CA94038 Moss Beach, CA94044 Pacifica, CA94060 San Mateo County, CA94061 Redwood City, CA94062 San Mateo County, CA94063 Redwood City, CA94065 Redwood City, CA94066 San Bruno, CA94070 San Carlos, CA94074 San Mateo County, CA94080 South San Francisco, CA94402 San Mateo, CA94403 San Mateo, CA94404 Foster City, CA

See every ZIP code in California, or compare ZIP 94401 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.