Postal Codes

11738 ZIP Code

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ZIP code 11738 covers Farmingville, New York, with a population of about 20,246 and a median household income of $139,008.

Population
20,2464,045 per square mile
Median age
35.13.6 points below the US average
Median household income
$139,0081.6× the New York median
Poverty rate
5.8%6.6 points below the US average
Typical home value
$668,812up 39.2% in five years
Median rent
$2,7891.8× the New York median
Degree or higher
31.9%3.1 points below the US average
Homeownership
79.5%14.5 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
392

Where 11738 is

Farmingville, New York — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population20,246
Median age35.1
Family households82.1%
Born outside the US17.4%
Speaks a language other than English at home26.1%
White (non-Hispanic)60.6%
Black (non-Hispanic)6.1%
Asian (non-Hispanic)4.7%
Hispanic or Latino23.3%
Veterans3.5%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$139,008
Income per person$46,030
Poverty rate5.8%
Households on SNAP or cash assistance8.3%

Household income distribution

Under $10k1.3%
$10–15k0.0%
$15–20k0.4%
$20–25k3.0%
$25–30k1.9%
$30–35k1.4%
$35–40k1.6%
$40–45k0.3%
$45–50k0.6%
$50–60k3.9%
$60–75k6.2%
$75–100k11.3%
$100–125k12.7%
$125–150k11.9%
$150–200k20.1%
$200k or more23.6%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed8,710
Mean adjusted gross income$84,556
Returns declaring $200,000 or more7.1%
Returns, under $25k24.2%
Returns, $25k–$50k18.7%
Returns, $50k–$75k15.4%
Returns, $75k–$100k11.0%
Returns, $100k–$200k23.5%
Returns, $200k or more7.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$455,000
Median gross rent$2,789
Rent as a share of household income34.4%
Owner-occupied79.5%
Vacant homes5.1%
Median year built1972

What the homes are

Detached house86%
Attached house0.4%
2 to 4 units4%
5 to 19 units7%
20 or more units2.4%
Mobile home0.2%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$668,812as of 2026-07
Typical home value, 1 yearup 6.1%
Typical home value, 5 yearsup 39.2%
Typical home value, 10 yearsup 98.9%
Typical home value since 2000
200020132026$668,812$167,788

$167,788 in 2000 to $668,812 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.2%
Bachelor's degree or higher31.9%
High school diploma or higher86.6%
Works from home6.3%
Drives to work alone78.2%
Takes public transport6.1%
Commutes 45 minutes or more22.3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity29.5% 3.9 pts below the national average of 33.4%
Diagnosed diabetes9% 3 pts below the national average of 12%
Currently smokes10.8% 2.4 pts below the national average of 13.2%
High blood pressure29.5% 4.6 pts below the national average of 34.1%
Fair or poor general health15.5% 4.8 pts below the national average of 20.3%
No health insurance (18–64)7% 4.3 pts below the national average of 11.3%
Depression17.4% 4.5 pts below the national average of 21.9%
No leisure-time physical activity23.8% 1.6 pts below the national average of 25.4%
Arthritis22.5% 2.6 pts below the national average of 25.1%
Binge drinking17.8% 1.8 pts above the national average of 16%
Taking blood pressure medication74.7% same as the national average of 74.7%
Cancer (non-skin)7.8% same as the national average of 7.7%
Current asthma10.6% same as the national average of 10.4%
Coronary heart disease5.2% 1 pts below the national average of 6.2%
Routine check-up in past year80% 3.3 pts above the national average of 76.7%
Cholesterol screening89.3% 3.4 pts above the national average of 85.9%
Cognitive disability12.1% 2.7 pts below the national average of 14.8%
Colorectal screening65.6% 1.3 pts above the national average of 64.3%
COPD5.4% 1.2 pts below the national average of 6.6%
Visited a dentist64.9% 3.6 pts above the national average of 61.3%
Any disability25.9% 4.8 pts below the national average of 30.7%
Lacks emotional support24.5% same as the national average of 24.8%
Food insecurity12.8% 4.3 pts below the national average of 17.1%
Received food stamps9.7% 4.6 pts below the national average of 14.3%
Hearing disability5.1% 1.6 pts below the national average of 6.7%
High cholesterol37.9% 1.7 pts above the national average of 36.2%
Housing insecurity11.6% 2.2 pts below the national average of 13.8%
Independent living disability6.7% 1.7 pts below the national average of 8.4%
Lacks transport6.8% 2.4 pts below the national average of 9.2%
Loneliness30.7% 3.7 pts below the national average of 34.4%
Mammography use78% 2.1 pts above the national average of 75.9%
Poor mental health (14+ days)15.8% 1 pts below the national average of 16.8%
Mobility disability11.3% 2.7 pts below the national average of 14%
Poor physical health (14+ days)12% 1.5 pts below the national average of 13.5%
Self-care disability3% 1 pts below the national average of 4%
Utility shut-off threat6.2% 2.6 pts below the national average of 8.8%
Sleeps under 7 hours39.3% 2.9 pts above the national average of 36.4%
Stroke2.7% 0.7 pts below the national average of 3.4%
All natural teeth lost9.5% 3.5 pts below the national average of 13%
Vision disability3.9% 1.7 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments392
People employed3,355
Annual payroll$154,041,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 26.6% of US census tracts
FEMA ratingVery Low to Relatively Low across the 7 census tracts this ZIP code covers
Expected annual loss39.1 out of 100
Community resilience90.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hurricane75.2Relatively Moderate at its worst in this ZIP code
Winter weather70Relatively Moderate at its worst in this ZIP code
Landslide68Very Low at its worst in this ZIP code
Ice storm64.2Relatively Moderate at its worst in this ZIP code
Earthquake60.7Relatively Low at its worst in this ZIP code
Strong wind52Relatively Moderate at its worst in this ZIP code
River flooding50Relatively High at its worst in this ZIP code
Wildfire48.8Relatively Low at its worst in this ZIP code
Cold wave45Relatively Moderate at its worst in this ZIP code
Lightning43.5Relatively Moderate at its worst in this ZIP code
Heat wave33.2Relatively Low at its worst in this ZIP code
Tornado22.8Very Low at its worst in this ZIP code
Hail13Very Low at its worst in this ZIP code
Compared with New York and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPNew YorkUnited States
Median household income$139,008$84,578$78,538
Income per person$46,030$49,520$43,289
Poverty rate5.8%13.7%12.4%
Median home value$455,000$403,000$303,400
Median gross rent$2,789$1,576$1,348
Homeownership79.5%54.3%65%
Bachelor's degree or higher31.9%39.6%35%
Unemployment rate4.2%6.2%5.2%
Works from home6.3%13.3%13.5%
Born outside the US17.4%22.6%13.9%
Median age35.139.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationISLIP LI MACARTHUR AP, NY US7 km away
Rain in a year46 in
Snow in a year32 in

Average high and low by month

January39.2°F / 24.6°F3.66 in rain, 10.3 in snow
February41°F / 25.5°F3.29 in rain, 9.4 in snow
March47.7°F / 32°F4.51 in rain, 6.5 in snow
April58.3°F / 41.2°F4.06 in rain, 0.6 in snow
May68.3°F / 50.8°F3.28 in rain
June77.2°F / 60.9°F4 in rain
July82.8°F / 67.3°F3.26 in rain
August81.4°F / 66°F4.24 in rain
September74.8°F / 58.9°F3.6 in rain
October64.1°F / 47.3°F3.97 in rain
November53.6°F / 37.6°F3.41 in rain, 0.5 in snow
December44.4°F / 29.8°F4.71 in rain, 4.5 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket47% of this ZIP code's area
No vehicle and far from a supermarket10% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

Sachem Central School District93.9% of this ZIP code's land area
Middle Country Central School District3.7% of this ZIP code's land area
Patchogue-Medford Union Free School District2.4% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability32more vulnerable than 32% of US census tracts
Socioeconomic status34more vulnerable than 34% of US census tracts
Household characteristics26more vulnerable than 26% of US census tracts
Racial and ethnic minority status50more vulnerable than 50% of US census tracts
Housing type and transport41more vulnerable than 41% of US census tracts
Walkability7.6 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

00501 Holtsville, NY2.4 km away
00544 Holtsville, NY2.4 km away
11742 Holtsville, NY2.9 km away
11784 Selden, NY3.7 km away
11720 Centereach, NY5.1 km away
11741 Holbrook, NY5.2 km away
11763 Medford, NY5.2 km away
11727 Coram, NY6.1 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Suffolk County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area5.01 sq mi
Population density4,045 people per sq mi
Latitude, longitude40.8366, -73.0413

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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