City

San Mateo, CA

5 ZIP codes  ·  San Mateo County  ·  California

👥140,535Population
💰$165,615Median HH Income▲ 117% above avg
🎂38.6Median Age
🏠$1,611,811Median Home Value▲ 478% above avg
🎓69.3%College Grads▲ 79% above avg
📊4.4%Unemployment▼ 10% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 49.3% Female 50.7% ♀

Race & Ethnicity

White: 35.9%Hispanic: 21.5%Black: 1.5%Asian: 33.2%Other: 5.6%Race
White35.9%
Hispanic21.5%
Black1.5%
Asian33.2%
Other5.6%

Age Breakdown

Under 5
6%
5–17
14%
18–24
7%
25–44
32%
45–64
24%
65+
7%

Key Indicators

Median Age38.6 yrs
Avg HH Size2.57
Below Poverty7.0% ▼ 30% below avg
College Grads69.3% ▲ 79% above avg
Unemployment4.4% ▼ 10% below avg
No HS Diploma2,875 (3.1%)
HS Graduate11,052 (11.9%)
Some College5,772 (6.2%)
Associates8,776 (9.4%)
Bachelors6,767 (7.3%)
Graduate Degree57,901 (62.2%)

Education

No HS: 3.1%HS Grad: 11.9%Some College: 6.2%Associates: 9.4%Bachelors: 7.3%Graduate: 62.2%Edu
No HS3.1%
HS Grad11.9%
Some College6.2%
Associates9.4%
Bachelors7.3%
Graduate62.2%
Housing & Income

Housing Tenure

Owner: 51.8%Renter: 48.2%Tenure
Owner51.8%
Renter48.2%

Home Value Distribution

Under $50k
1%
$50k–$100k
0%
$100k–$150k
1%
$150k–$200k
0%
$200k–$300k
1%
$300k–$500k
2%
Over $500k
95%

Financials

Median HH Income$165,615 ▲ 117% above avg
Median Home Value$1,611,811 ▲ 478% above avg
Home/Income Ratio9.7x (nat avg ~3.5x)
Median Rent$3,226/mo
Total Housing Units57,269
Vacant Units3,284

Income Distribution

Under $25k
8%
$25k–$50k
8%
$50k–$75k
8%
$75k–$100k
7%
$100k–$150k
15%
$150k–$200k
13%
Over $200k
41%
Employment & Commute

How People Get to Work

Drove Alone
64%
Public Transit
6%
Walked
3%
Work From Home
27%

Commute Time

Under 15 min
22%
15–30 min
35%
30–45 min
24%
Over 45 min
20%
Housing Stock

Year Built

Before 1940
7%
1940s–1950s
20%
1960s–1970s
16%
1980s–1990s
4%
2000+
54%
About San Mateo, CA

San Mateo is a city in California, located in San Mateo County. The city spans 5 ZIP codes and is home to approximately 140,535 residents. It is a middle-aged city, with a median age of 38.63 years.

Economically, San Mateo is a affluent community. The median household income of $165,614 is more than double the national average. Approximately 7.0% of residents live below the poverty line. The unemployment rate is 4.4%, near the national average.

The real estate market in San Mateo is among the most expensive housing markets in the country. Median home values stand at $1,611,811, which is more than double the national average. Renters typically pay around $3,226 per month.

The population of San Mateo is highly educated. 69.3% of adults hold a bachelor's degree or higher — significantly above the national average. The community is racially diverse, with White as the largest group at 35.9%.

San Mateo, CA offers residents above-average earning potential within California. Spread across 5 ZIP codes, the city's neighborhoods vary in character, density, and demographics — explore each ZIP code below for a detailed breakdown.

ZIP Codes in San Mateo
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
94401 35,628 $121,258 $1,123,300 $2,713 3.6% 56.6% 44.4%
94402 25,498 $179,683 $2,000,000+ $3,476 3.8% 74.9% 59.3%
94403 43,459 $179,825 $1,725,900 $3,273 5.3% 68.2% 54.0%
94404 35,950 $182,417 $1,682,700 $3,501 4.5% 79.3% 51.1%