ZIP Code 94930 — Fairfax, California

    📍 ZIP code 94930 is in Fairfax, Marin County, California.

    ZIP code 94930 is located in Fairfax, Marin County, California. It is a standard zip code in the Pacific Time Zone with an estimated population of 8,748. The area code for zip code 94930 is 707.

    ZIP
    94930
    City
    Fairfax
    County
    Marin County
    State
    California
    Time Zone
    Pacific
    Area Code
    707
    Type
    Standard
    USPS City
    Fairfax
    Latitude
    37.9440° N
    Longitude
    122.6164° W
    Land Area
    14.2 sq mi
    Water Area
    0.4 sq mi

    ZIP Code 94930 Map

    Coordinates: 37.9440°N, 122.6164°W

    ZIP Code 94930 Demographics

    Population

    Total Population8,748
    Density616/sq mi
    Median Age47.3
    Male / Female48.1% / 51.9%

    Income & Economy

    Median Household$129,839
    Per Capita$68,225
    Poverty Rate8.8%
    Unemployment10.1%

    Housing

    Total Units3,981
    Owner-Occupied66.2%
    Renter-Occupied33.8%
    Median Home Value$1,056,100
    Median Rent$2,301

    Education

    High School Grad97.8%
    Bachelor's Degree68.2%

    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 94930 in Context

    The median home in 94930 is valued at $1,056,100 against a median household income of $129,839, a price-to-income ratio of 8.1. That is 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, so buying here on a local median income requires substantial savings or a second income. Within Marin County, 94930 ranks 8 of 26 ZIPs on affordability (1 = lowest ratio); the county median ratio is 8.9. Renting takes 21.3% of median household income (median rent $2,301 a month), under the 30% cost-burden threshold.

    94930 ranks 263 of 1,558 statewide on median household income and 281 of 1,558 on median home value; its income is in line with the $127,509 Marin County median. 66% of households own their home, in line with the 64% statewide ZIP median, making this a majority-owner ZIP. 68% of adults hold a bachelor's degree or higher, far above the 31% median, and the poverty rate is 8.8%, below the 10.8% statewide ZIP median. Unemployment stands at 10.1%.

    With 616 residents per square mile across 14.2 square miles of land, 94930 is less dense than the statewide ZIP median of 1,120 (rank 874 of 1,558). This is a low-density pattern of large lots, small towns or scattered subdivisions.

    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 94930 primarily serves Fairfax in Marin County, California.

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