ZIP Code 11738 — Farmingville, New York

    📍 ZIP code 11738 is in Farmingville, Suffolk County, New York.

    ZIP code 11738 is located in Farmingville, Suffolk County, New York. It is a standard zip code in the Eastern Time Zone with an estimated population of 20,246. The area code for zip code 11738 is 631.

    ZIP
    11738
    City
    Farmingville
    County
    Suffolk County
    State
    New York
    Time Zone
    Eastern
    Area Code
    631
    Type
    Standard
    USPS City
    Farmingville
    Latitude
    40.8378° N
    Longitude
    73.0377° W
    Land Area
    5 sq mi
    Water Area
    0 sq mi

    ZIP Code 11738 Map

    Coordinates: 40.8378°N, 73.0377°W

    ZIP Code 11738 Demographics

    Population

    Total Population20,246
    Density4,049/sq mi
    Median Age35.1
    Male / Female54.8% / 45.2%

    Income & Economy

    Median Household$139,008
    Per Capita$46,030
    Poverty Rate5.8%
    Unemployment4.2%

    Housing

    Total Units5,888
    Owner-Occupied79.5%
    Renter-Occupied20.5%
    Median Home Value$455,000
    Median Rent$2,789

    Education

    High School Grad86.6%
    Bachelor's Degree31.9%

    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 11738 in Context

    The median home in 11738 is valued at $455,000 against a median household income of $139,008, a price-to-income ratio of 3.3. That is above the 2.9 median across the 1,572 New York ZIP codes with published housing data, and near the 3.0 ratio that marks an attainable market nationally. Within Suffolk County, 11738 ranks 4 of 95 ZIPs on affordability (1 = lowest ratio); the county median ratio is 4.2. Renting takes 24.1% of median household income (median rent $2,789 a month), under the 30% cost-burden threshold.

    11738 ranks 175 of 1,572 statewide on median household income and 409 of 1,572 on median home value; its income is above the $128,844 Suffolk County median. 80% of households own their home, in line with the 80% statewide ZIP median, making this a majority-owner ZIP. 32% of adults hold a bachelor's degree or higher, in line with the 31% median, and the poverty rate is 5.8%, below the 9.9% statewide ZIP median and among the lowest in the state. Unemployment stands at 4.2%.

    With 4,049 residents per square mile across 5 square miles of land, 11738 is far denser than the statewide ZIP median of 197 (rank 303 of 1,572). This is predominantly single-family residential with suburban street patterns.

    Ratios and ranks are computed from the ACS figures above across the 1,572 New York ZIP codes with published housing data. See the 2026 New York affordability report for the statewide analysis and the methodology for definitions.

    Nearby Zip Codes

    Cities & Places Served

    ZIP code 11738 primarily serves Farmingville in Suffolk County, New York.

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