Palo Alto, CA 94303 ZIP Code Profile

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Palo Alto, CA

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ZIP Code 94303: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Palo Alto, CA 94303

Acceptable Alternative
E Palo Alto, CA 94303
East Palo Alto, CA 94303

  • ZIP Code Type: STANDARD
  • County: Santa Clara County
  • Centroid: Latitude 37.449, Longitude -122.125
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

ZIP Code 94303 has segments in 2 Counties (San Mateo, Santa Clara).

  • Businesses Addresses: 1,215
  • PO Box Addresses: 834
  • Residential Addresses: 14,039
    • Multi-Family Addresses: 3,552
    • Single Family Addresses: 10,487

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic 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 demographic data.


94303 ZIP Code Map

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Palo Alto, CA 94303 Data & Demographics (As of July 1, 2017)


Total Population 48,040
Daytime Population: Workers 18,599
Daytime Population: Residents 25,956
Total Daytime Population (TDP) 44,555
Ratio TDP/Total Population1 0.93
Population in Households 47,864
Population in Familes 40,360
Population in Group Qrtrs 176
Population Density2 6,218
Diversity Index3 91


Median Household Income $89,798
Average Household Income $143,089
Per Capita Income $41,280


Total Housing Units 15,096 (100%)
Owner Occupied HU 7,946 (52.6%)
Renter Occupied HU 5,860 (38.8%)
Vacant Housing Units 1,290 ( 8.5%)
Median Home Value $1,000,001
Average Home Value $924,978


Total Households 13,806
Average Household Size 3.47
Family Households 10,510
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 1.01% 0.97%
Households 0.93% 0.95%
Families 0.98% 0.99%
Median Household Income   2.51%
Per Capita Income   2.23%

Palo Alto, CA 94303 - Peer Comparisons by Rank and Percentile

The table below compares 94303 to the other 1,761 ZIP Codes in California by rank and percentile using July 1, 2017 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 # 261 85th
Population Density # 361 80th
Diversity Index # 49 98th
Median Household Income # 318 82nd
Per Capita Income # 477 73rd

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

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