ZIP Code 94551 — Livermore, California

    📍 ZIP code 94551 is in Livermore, Alameda County, California.

    ZIP code 94551 is located in Livermore, Alameda County, California. It is a standard zip code in the Pacific Time Zone with an estimated population of 40,025. The area code for zip code 94551 is 925.

    ZIP
    94551
    City
    Livermore
    County
    Alameda County
    State
    California
    Time Zone
    Pacific
    Area Code
    925
    Type
    Standard
    USPS City
    Livermore
    Latitude
    37.7505° N
    Longitude
    121.7491° W
    Land Area
    82.7 sq mi
    Water Area
    0.3 sq mi

    ZIP Code 94551 Map

    Coordinates: 37.7505°N, 121.7491°W

    ZIP Code 94551 Demographics

    Population

    Total Population40,025
    Density484/sq mi
    Median Age38.3
    Male / Female49.3% / 50.7%

    Income & Economy

    Median Household$128,356
    Per Capita$56,816
    Poverty Rate5.4%
    Unemployment3.7%

    Housing

    Total Units14,422
    Owner-Occupied70.3%
    Renter-Occupied29.7%
    Median Home Value$898,400
    Median Rent$2,463

    Education

    High School Grad91.6%
    Bachelor's Degree43.1%

    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 94551 in Context

    The median home in 94551 is valued at $898,400 against a median household income of $128,356, a price-to-income ratio of 7.0. That is in line with 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 Alameda County, 94551 ranks 11 of 47 ZIPs on affordability (1 = lowest ratio); the county median ratio is 7.9. Renting takes 23.0% of median household income (median rent $2,463 a month), under the 30% cost-burden threshold.

    94551 ranks 273 of 1,558 statewide on median household income and 398 of 1,558 on median home value; its income is in line with the $125,410 Alameda County median. 70% of households own their home, above the 64% statewide ZIP median, making this a majority-owner ZIP. 43% of adults hold a bachelor's degree or higher, above the 31% median, and the poverty rate is 5.4%, far below the 10.8% statewide ZIP median and among the lowest in the state. Unemployment stands at 3.7%.

    With 484 residents per square mile across 82.7 square miles of land, 94551 is far less dense than the statewide ZIP median of 1,120 (rank 909 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 94551 primarily serves Livermore in Alameda County, California.

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