San Mateo, CA 94402 ZIP Code Profile

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San Mateo, CA

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ZIP Code 94402: Basic Data & USPS Preferred City Name

Preferred Name, USPS
San Mateo, CA 94402

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,417
  • Single Family Addresses: 7,631
  • Multi-Family Addresses: 2,351
  • County: San Mateo County
  • Centroid: Latitude 37.546, Longitude -122.33
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


94402 ZIP Code Map

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San Mateo, CA 94402 Data & Demographics (As of July 1, 2016)


Total Population 26,237
Population in Households 25,962
Population in Familes 21,190
Population in Group Qrtrs 275
Population Density1 5,185
Diversity Index2 65


Total Households 10,264
Average Household Size 2.53
Family Households 6,928
Average Family Size 3


Total Housing Units 10,732 (100%)
Owner Occupied HU 6,461 (60.2%)
Renter Occupied HU 3,803 (35.4%)
Vacant Housing Units 468 ( 4.4%)
Median Home Value $1,000,001
Average Home Value $1,024,048


Median Household Income $111,338
Average Household Income $167,788
Per Capita Income $66,089
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.64% 0.91%
Households 0.43% 0.78%
Families 0.42% 0.77%
Median Household Income   2.33%
Per Capita Income   1.68%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

San Mateo, CA 94402 - Peer Comparisons by Rank and Percentile

The table below compares 94402 to the other 1,756 ZIP Codes in California by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 684 61st
Population Density1 # 431 76th
Diversity Index2 # 948 46th
Median Household Income # 103 94th
Per Capita Income # 98 94th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.