ZIP Code 90403 — Santa Monica, California

    📍 ZIP code 90403 is in Santa Monica, Los Angeles County, California.

    ZIP code 90403 is located in Santa Monica, Los Angeles County, California. It is a standard zip code in the Pacific Time Zone with an estimated population of 24,092. The area code for zip code 90403 is 310.

    ZIP
    90403
    City
    Santa Monica
    County
    Los Angeles County
    State
    California
    Time Zone
    Pacific
    Area Code
    310
    Type
    Standard
    USPS City
    Santa Monica
    Latitude
    34.0308° N
    Longitude
    118.4921° W
    Land Area
    1.4 sq mi
    Water Area
    0.1 sq mi

    ZIP Code 90403 Map

    Coordinates: 34.0308°N, 118.4921°W

    ZIP Code 90403 Demographics

    Population

    Total Population24,092
    Density17,209/sq mi
    Median Age44.5
    Male / Female49.2% / 50.8%

    Income & Economy

    Median Household$123,391
    Per Capita$94,822
    Poverty Rate10.1%
    Unemployment5.2%

    Housing

    Total Units14,773
    Owner-Occupied27.4%
    Renter-Occupied72.6%
    Median Home Value$1,597,800
    Median Rent$2,362

    Education

    High School Grad96.5%
    Bachelor's Degree72.5%

    Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).

    Affordability & Profile: ZIP 90403 in Context

    The median home in 90403 is valued at $1,597,800 against a median household income of $123,391, a price-to-income ratio of 12.9. That is far above the 6.7 median across the 1,558 California ZIP codes with published housing data, and well past the 3.0 ratio that marks an attainable market nationally, which means a household earning the local median income cannot finance the local median home on conventional terms. Within Los Angeles County, 90403 ranks 236 of 275 ZIPs on affordability (1 = lowest ratio); the county median ratio is 9.2. Renting takes 23.0% of median household income (median rent $2,362 a month), under the 30% cost-burden threshold.

    90403 ranks 322 of 1,558 statewide on median household income and 96 of 1,558 on median home value; its income is above the $87,339 Los Angeles County median. 27% of households own their home, far below the 64% statewide ZIP median, so most residents rent. 73% of adults hold a bachelor's degree or higher, far above the 31% median, and the poverty rate is 10.1%, below the 10.8% statewide ZIP median. Unemployment stands at 5.2%.

    With 17,209 residents per square mile across 1.4 square miles of land, 90403 is far denser than the statewide ZIP median of 1,120 (rank 46 of 1,558). This is a mixed urban fabric of apartments, small-lot houses and commercial corridors.

    Ratios and ranks are computed from the ACS figures above across the 1,558 California ZIP codes with published housing data. See the 2026 California affordability report for the statewide analysis and the methodology for definitions.

    Nearby Zip Codes

    Cities & Places Served

    ZIP code 90403 primarily serves Santa Monica in Los Angeles County, California.

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