San Mateo, CA 94403 ZIP Code Profile

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San Mateo, CA

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ZIP Code 94403: Basic Data & USPS Preferred City Name

Preferred Name, USPS
San Mateo, CA 94403

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,395
  • Single Family Addresses: 11,202
  • Multi-Family Addresses: 5,926
  • County: San Mateo County
  • Centroid: Latitude 37.54, Longitude -122.304
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood Data

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94403 ZIP Code Map

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San Mateo, CA 94403 Data & Demographics (As of July 1, 2016)


Total Population 42,965
Population in Households 42,469
Population in Familes 33,485
Population in Group Qrtrs 496
Population Density1 7,609
Diversity Index2 74


Total Households 16,899
Average Household Size 2.51
Family Households 10,831
Average Family Size 3


Total Housing Units 17,551 (100%)
Owner Occupied HU 9,103 (51.9%)
Renter Occupied HU 7,796 (44.4%)
Vacant Housing Units 652 ( 3.7%)
Median Home Value $810,880
Average Home Value $820,068


Median Household Income $96,787
Average Household Income $129,394
Per Capita Income $51,390
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.99% 1.17%
Households 0.78% 1.04%
Families 0.8% 1.05%
Median Household Income   2.33%
Per Capita Income   1.69%
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 94403 - Peer Comparisons by Rank and Percentile

The table below compares 94403 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 # 325 82nd
Population Density1 # 265 85th
Diversity Index2 # 703 60th
Median Household Income # 219 88th
Per Capita Income # 208 88th

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

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