ZIP Code 91945 — Lemon Grove, California

    📍 ZIP code 91945 is in Lemon Grove, San Diego County, California.

    ZIP code 91945 is located in Lemon Grove, San Diego County, California. It is a standard zip code in the Pacific Time Zone with an estimated population of 27,541. The area code for zip code 91945 is 619.

    ZIP
    91945
    City
    Lemon Grove
    County
    San Diego County
    State
    California
    Time Zone
    Pacific
    Area Code
    619
    Type
    Standard
    USPS City
    Lemon Grove
    Latitude
    32.7332° N
    Longitude
    117.0342° W
    Land Area
    4 sq mi
    Water Area
    0 sq mi

    ZIP Code 91945 Map

    Coordinates: 32.7332°N, 117.0342°W

    ZIP Code 91945 Demographics

    Population

    Total Population27,541
    Density6,885/sq mi
    Median Age37.4
    Male / Female50.4% / 49.6%

    Income & Economy

    Median Household$77,989
    Per Capita$33,281
    Poverty Rate9.9%
    Unemployment8.2%

    Housing

    Total Units9,529
    Owner-Occupied53.9%
    Renter-Occupied46.1%
    Median Home Value$593,300
    Median Rent$1,693

    Education

    High School Grad87.3%
    Bachelor's Degree19.9%

    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 91945 in Context

    The median home in 91945 is valued at $593,300 against a median household income of $77,989, a price-to-income ratio of 7.6. 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 San Diego County, 91945 ranks 52 of 94 ZIPs on affordability (1 = lowest ratio); the county median ratio is 7.4. Renting takes 26.0% of median household income (median rent $1,693 a month), under the 30% cost-burden threshold.

    91945 ranks 922 of 1,558 statewide on median household income and 794 of 1,558 on median home value; its income is below the $98,033 San Diego County median. 54% of households own their home, below the 64% statewide ZIP median, making this a majority-owner ZIP. 20% of adults hold a bachelor's degree or higher, below the 31% median, and the poverty rate is 9.9%, below the 10.8% statewide ZIP median. Unemployment stands at 8.2%.

    With 6,885 residents per square mile across 4 square miles of land, 91945 is far denser than the statewide ZIP median of 1,120 (rank 305 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 91945 primarily serves Lemon Grove in San Diego County, California.

    Frequently Asked Questions

    People Also Searched For

    Related Resources