ZIP Code 94939 — Larkspur, California

    📍 ZIP code 94939 is in Larkspur, Marin County, California.

    ZIP code 94939 is located in Larkspur, Marin County, California. It is a standard zip code in the Pacific Time Zone with an estimated population of 7,488. The area code for zip code 94939 is 415.

    ZIP
    94939
    City
    Larkspur
    County
    Marin County
    State
    California
    Time Zone
    Pacific
    Area Code
    415
    Type
    Standard
    USPS City
    Larkspur
    Latitude
    37.9371° N
    Longitude
    122.5324° W
    Land Area
    2.4 sq mi
    Water Area
    0.2 sq mi

    ZIP Code 94939 Map

    Coordinates: 37.9371°N, 122.5324°W

    ZIP Code 94939 Demographics

    Population

    Total Population7,488
    Density3,120/sq mi
    Median Age46.3
    Male / Female48.8% / 51.2%

    Income & Economy

    Median Household$156,250
    Per Capita$107,557
    Poverty Rate6.9%
    Unemployment6.1%

    Housing

    Total Units3,795
    Owner-Occupied48.1%
    Renter-Occupied51.9%
    Median Home Value$2,000,001
    Median Rent$2,833

    Education

    High School Grad98.4%
    Bachelor's Degree75.5%

    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 94939 in Context

    The median home in 94939 is valued at more than $2,000,000 (the Census reporting ceiling) against a median household income of $156,250, a price-to-income ratio of at least 12.8. 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 Marin County, 94939 ranks 21 of 26 ZIPs on affordability (1 = lowest ratio); the county median ratio is 8.9. Renting takes 21.8% of median household income (median rent $2,833 a month), under the 30% cost-burden threshold.

    94939 ranks 139 of 1,558 statewide on median household income and 1 of 1,558 on median home value; its income is above the $127,509 Marin County median. 48% of households own their home, below the 64% statewide ZIP median, so most residents rent. 76% of adults hold a bachelor's degree or higher, far above the 31% median, and the poverty rate is 6.9%, below the 10.8% statewide ZIP median. Unemployment stands at 6.1%.

    With 3,120 residents per square mile across 2.4 square miles of land, 94939 is far denser than the statewide ZIP median of 1,120 (rank 592 of 1,558). This is predominantly single-family residential with suburban street patterns.

    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 94939 primarily serves Larkspur in Marin County, California.

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