US ZIP Code
94401

San Mateo, CA

San Mateo County  ·  California

● Active
👥 35,628 Population
💰 $121,258 Median HH Income
▲ 59% above avg ↑ 29% since 2019
🎂 35.9 Median Age
🏠 $1,123,300 Median Home Value
▲ 303% above avg ↑ 35% since 2019
🎓 56.6% College Grads
▲ 46% above avg
📊 3.6% Unemployment
▼ 26% below avg ↓ 30% since 2019
ZIP Code Details
ZIP Code94401
CitySan Mateo
StateCalifornia (CA)
CountySan Mateo County
Area Code650
Elevation9 ft
Latitude37.575172
Longitude-122.319881
TimezoneLos Angeles (DST)
FIPS06081
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.9% (17,775) Female 50.1% (17,853) ♀

Race & Ethnicity

White: 25.6%Hispanic: 37.8%Black: 1.2%Asian: 24.5%Other: 6.3%Race
White25.6%
Hispanic37.8%
Black1.2%
Asian24.5%
Other6.3%

Age Breakdown

Under 5
6%
5–17
13%
18–24
9%
25–44
33%
45–64
22%
65+
6%

Key Indicators

Median Age35.9 yrs
Avg Household Size2.65
Below Poverty10.8% ▲ 8% above avg
College Grads56.6% ▲ 46% above avg
Unemployment3.6% ▼ 26% below avg
No HS Diploma1,480 (6.5%)
HS Graduate3,880 (16.9%)
Some College2,002 (8.7%)
Associates2,574 (11.2%)
Bachelors2,237 (9.8%)
Graduate Degree10,744 (46.9%)

Education

No HS: 6.5%HS Grad: 16.9%Some College: 8.7%Associates: 11.2%Bachelors: 9.8%Graduate: 46.9%Edu
No HS6.5%
HS Grad16.9%
Some College8.7%
Associates11.2%
Bachelors9.8%
Graduate46.9%
Housing & Income

Housing Tenure

Owner: 44.4%Renter: 55.6%Tenure
Owner44.4%
Renter55.6%

Home Value Distribution

Under $50k
2%
$50k–100k
0%
$100k–150k
1%
$200k–300k
1%
$300k–500k
2%
Over $500k
94%

Financials

Median HH Income$121,258 ▲ 59% above avg ↑ 29% since 2019
Median Home Value$1,123,300 ▲ 303% above avg ↑ 35% since 2019
Home/Income Ratio9.3x (nat avg ~3.5x)
Median Rent$2,713/mo ↑ 20% since 2019
Total Units13,798
Vacant Units712
Avg HH Size2.65

Income Distribution

Under $25k
12%
$25k–50k
12%
$50k–75k
9%
$75k–100k
9%
$100k–150k
16%
$150k–200k
16%
Over $200k
26%
Employment & Commute

How People Get to Work

Drove Alone
69%
Public Transit
7%
Walked
3%
Work From Home
22%

Commute Time

Under 15 min
20%
15–30 min
40%
30–45 min
23%
Over 45 min
17%
Housing Stock

Year Built

Before 1940
9%
1940s–1950s
19%
1960s–1970s
12%
1980s–1990s
7%
2000+
54%

Summary

Total Units13,798
Vacant712
Owner Occupied44.4%
Renter Occupied55.6%
Avg HH Size2.65
Frequently Asked Questions
ZIP code 94401 is in San Mateo, CA, in San Mateo County.
ZIP code 94401 is located in California (CA).
ZIP code 94401 is in San Mateo County, CA.
ZIP 94401 observes the Los Angeles timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 94401 is 35,628 people (ACS 2023).
The median household income in ZIP code 94401 is $121,258 (ACS 2023).
The median home value in ZIP 94401 is $1,123,300 (ACS 2023).
About ZIP Code 94401

ZIP code 94401 is located in San Mateo, California, within San Mateo County. With a population of 35,628, this is a highly populated ZIP code with a relatively young community — the median age is 35.9 years. Economically, 94401 is a upper-middle-income ZIP code: the median household income of $121,258 is significantly above the national average.

Real estate in ZIP code 94401 represents among the most expensive housing markets in the country. The median home value of $1,123,300 is more than double the national average. Renters can expect to pay around $2,713 per month in median rent. The area has a relatively balanced mix of owners (44.4%) and renters (55.6%). Median home values have increased by 35% since 2019.

The population of 94401 is racially diverse, with Hispanic as the largest group at 37.8%. Residents are well-educated — 56.6% hold a bachelor's degree or higher, which is above the national average. Poverty affects some residents at 10.8%. Household income has grown by 29% since 2019.

The unemployment rate in 94401 stands at 3.6%, which is below the national average. About 19% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 60%.

Overall, ZIP code 94401 in San Mateo, CA is characterized as upper-middle-income, well-educated, and a relatively young community. With 35,628 residents, a median household income of $121,258, and a median home value of $1,123,300, it offers a clear picture of life in this part of California.