ZIP Code 94577 — San Leandro, California

    📍 ZIP code 94577 is in San Leandro, Alameda County, California.

    ZIP code 94577 is located in San Leandro, Alameda County, California. It is a standard zip code in the Pacific Time Zone with an estimated population of 47,937. The area code for zip code 94577 is 510.

    ZIP
    94577
    City
    San Leandro
    County
    Alameda County
    State
    California
    Time Zone
    Pacific
    Area Code
    510
    Type
    Standard
    USPS City
    San Leandro
    Latitude
    37.7133° N
    Longitude
    122.1673° W
    Land Area
    8.1 sq mi
    Water Area
    0.7 sq mi

    ZIP Code 94577 Map

    Coordinates: 37.7133°N, 122.1673°W

    ZIP Code 94577 Demographics

    Population

    Total Population47,937
    Density5,918/sq mi
    Median Age40.6
    Male / Female50.9% / 49.1%

    Income & Economy

    Median Household$106,695
    Per Capita$49,749
    Poverty Rate7.2%
    Unemployment4.7%

    Housing

    Total Units17,436
    Owner-Occupied56.5%
    Renter-Occupied43.5%
    Median Home Value$788,100
    Median Rent$2,073

    Education

    High School Grad86.1%
    Bachelor's Degree37.7%

    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 94577 in Context

    The median home in 94577 is valued at $788,100 against a median household income of $106,695, a price-to-income ratio of 7.4. 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 Alameda County, 94577 ranks 15 of 47 ZIPs on affordability (1 = lowest ratio); the county median ratio is 7.9. Renting takes 23.3% of median household income (median rent $2,073 a month), under the 30% cost-burden threshold.

    94577 ranks 493 of 1,558 statewide on median household income and 505 of 1,558 on median home value; its income is below the $125,410 Alameda County median. 57% of households own their home, below the 64% statewide ZIP median, making this a majority-owner ZIP. 38% of adults hold a bachelor's degree or higher, above the 31% median, and the poverty rate is 7.2%, below the 10.8% statewide ZIP median. Unemployment stands at 4.7%.

    With 5,918 residents per square mile across 8.1 square miles of land, 94577 is far denser than the statewide ZIP median of 1,120 (rank 366 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 94577 primarily serves San Leandro in Alameda County, California.

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