US Census Data

ZIP Code 94403

ZIP Code Tabulation Area in San Mateo County, California.

Population
43,459
-2.1%’19–’23
Median household income
$179,825
+33.3%’19–’23
Median home value
$1,725,900
+43.8%’19–’23

ZIP Code 94403 (San Mateo County, California) is home to about 43,459 residents. Its median household income of $179,825 runs above the San Mateo County figure of $156,000.

Between 2019 and 2023, ZIP Code 94403's population declined 2.1% from 44,408 to 43,459, while its median gross rent rose 22.8% from $2,665 to $3,273.

6.4% of residents live below the poverty line. Households average 2.60 people.

Demographics

ACS 2019–2023
Population
43,459
Median age
38.5 yrs
Median household income
$179,825
Median home value
$1,725,900
Median gross rent
$3,273
Housing units
17,682
Homeownership rate
54.0%
Bachelor's degree or higher
60.3%
Unemployment rate
5.3%

Trends

ACS 5-year · 2019–2023
Population
44,40843,459
Median household income
$134,875$179,825
Median home value
$1,199,800$1,725,900
Median gross rent
$2,665$3,273
YearPopulationMedian household incomeMedian home valueMedian gross rent
201944,408$134,875$1,199,800$2,665
202044,361$139,631$1,375,300$2,855
202144,244$151,369$1,499,300$2,971
202243,858$171,213$1,681,500$3,166
202343,459$179,825$1,725,900$3,273

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 52,5765.9%
5 to 175,81113.4%
18 to 242,7466.3%
25 to 347,41217.1%
35 to 447,07216.3%
45 to 545,96313.7%
55 to 645,17111.9%
65 to 743,5168.1%
75 and over3,1927.3%

Race & ethnicity

CountShare
White (non-Hispanic)17,07139.3%
Black or African American6901.6%
American Indian & Alaska Native350.1%
Asian12,59929.0%
Native Hawaiian & Pacific Islander2660.6%
Some other race5611.3%
Two or more races1,7684.1%
Hispanic or Latino (any race)10,46924.1%

Educational attainment (age 25+)

CountShare
No high school diploma2,5928.0%
High school graduate3,65511.3%
Some college or associate's6,58420.4%
Bachelor's degree10,86133.6%
Graduate or professional degree8,63426.7%

Commute to work

Mean travel time to work
27 min

How workers get to work

CountShare
Drove alone13,76857.7%
Carpooled1,6216.8%
Public transit1,6587.0%
Walked7002.9%
Bicycle1350.6%
Worked from home5,33422.4%
Other means6292.6%

Travel time

CountShare
Under 15 min4,11822.2%
15 to 29 min6,49035.1%
30 to 44 min4,65425.1%
45 to 59 min1,8409.9%
60+ min1,4097.6%

Households

Average household size
2.60
Poverty rate
6.4% (2,745 of 43,006)
CountShare
Family households10,99067.1%
Nonfamily households5,38232.9%

Housing

Median year structure built
1965

Occupancy

CountShare
Occupied16,37292.6%
Vacant1,3107.4%

Tenure (of occupied units)

CountShare
Owner-occupied8,83654.0%
Renter-occupied7,53646.0%

Units in structure

CountShare
1-unit, detached8,31247.0%
1-unit, attached1,6759.5%
2 to 4 units1,1116.3%
5 to 19 units2,66515.1%
20 or more units3,88322.0%
Mobile home & other360.2%

Geography

ZCTA
94403
Land area
5.63 sq mi
Water area
0.16 sq mi
Center point
37.5384, -122.3054

Counties this ZIP covers

1

Compare with nearby ZIP codes

3

National ZIP rankings

21

Nearby ZIP codes

3