90403 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Santa Monica, CA
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ZIP Code 90403: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Santa Monica, CA 90403

  • ZIP Code Type: STANDARD
  • County: Los Angeles County
  • Centroid: Latitude 34.03, Longitude -118.491
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 911
  • PO Box Addresses: 0
  • Residential Addresses: 14,810
    • Multi-Family Addresses: 11,773
    • Single Family Addresses: 3,037

The ZIP Code maps and database are updated 4 times per year.
Database updated: March 1, 2026, Maps updated: May 1, 2024.

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Santa Monica, CA 90403 Data & Demographics

Source: 2020-2024 American Community Survey 5-Year Estimates

POPULATION

Total Population 23,867 (100%)
Population Density 16,908 per sq mi
Diversity Index1 53
 
 

INCOME

Median Household Income $121,925
Per Capita Income $96,523
Median Home Value $1,548,900
 

HOUSING

Total HU (Housing Units) 14,977 (100%)
Owner Occupied HU 3,445 (23.0%)
Renter Occupied HU 9,720 (64.9%)
Vacant Housing Units 1,812 (12.1%)
 

HOUSEHOLDS

Total Households 13,165
Average Household Size 1.79
Family Households 5,119 (38.9%)
NOTES
  1. The Diversity Index estimates the likelihood that two persons chosen at random from the same area belong to different race or ethnic groups, based on five groups: Hispanic/Latino, Non-Hispanic White, Non-Hispanic Black, Non-Hispanic Asian, and Non-Hispanic Other/Multiracial. A value of 0 indicates the population belongs entirely to one group. Higher values indicate a more evenly mixed population. Calculated from U.S. Census Bureau ACS 5-year estimates (table B03002).

Santa Monica, CA 90403 - Peer Comparisons by Rank and Percentile

The table below compares 90403 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates 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 # 5253 84th
Population Density # 369 99th
Median Household Income # 3054 91st
Per Capita Income # 661 98th
Diversity Index # 6556 81st

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


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