11738 ZIP Code — Farmingville, NY
Suffolk County, New York
ZIP code 11738 is located in Farmingville, New York, within Suffolk County. It covers approximately 5.01 square miles and serves a population of 20,077 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 631.
About ZIP code 11738
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $431,800. Owner-occupancy is high at 82%, well above the national average.
Median household income is $128,728. The poverty rate of 7% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 32% of residents holding a bachelor's degree or higher.
20,077
population
5.01
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
11738 ZIP code map
Cities in ZIP code 11738
Below are the cities the US Postal Service accepts for ZIP code 11738. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Farmingville | Preferred |
Nearby ZIP codes
00501 Holtsville (1.3 mi)
11742 Holtsville (1.8 mi)
11784 Selden (2.2 mi)
11741 Holbrook (3 mi)
11763 Medford (3.3 mi)
11720 Centereach (3.3 mi)
00544 Holtsville (3.3 mi)
11727 Coram (3.4 mi)
11779 Ronkonkoma (4.3 mi)
11755 Lake Grove (4.4 mi)
11776 Port Jefferson Station (5.3 mi)
11767 Nesconset (5.5 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 20,077 |
| Population density | 4,007 / sq mi |
| State FIPS | 36 |
| County FIPS | 103 |
| Geography | |
|---|---|
| Land area | 5.01 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 40.8368 |
| Longitude | -73.0405 |
| Timezone | Eastern (ET) |
| Area code | 631 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 15.1% | 22.6% | 37.0% |
| $50k – $100k | 24.0% | 24.7% | 27.0% |
| $100k – $200k | 42.7% | 34.6% | 24.4% |
| Over $200k | 18.2% | 18.0% | 11.5% |
Demographics & statistics
20,077
Population
4,007
People per sq mi
34.6
Median age
$128,728
Median household income
$43,676
Per capita income
$431,800
Median home value
$2,662
Median monthly rent
81.9%
Home ownership
6.5%
Poverty rate
4.3%
Unemployment
5,000
Housing units
31.6%
Bachelor's or higher
Age distribution
Male
Female
798
Under 5
668
582
5–9
487
680
10–14
569
864
15–19
723
920
20–24
769
1,692
25–34
1,414
1,024
35–44
857
1,826
45–54
1,527
626
55–59
524
721
60–64
602
680
65–74
569
357
75–84
298
163
85+
137
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 4,746 | 23.6% |
| 18 and over | 15,331 | 76.4% |
| 65 and over | 2,204 | 11.0% |
| Median age | 34.6 years | |
Race & ethnicity
White
64.9%
Hispanic or Latino
9%
Black or African American
8.4%
Two or more races
6.3%
Asian
5.3%
Other race
4.8%
American Indian / Alaska Native
1.3%
| Group | Count | % |
|---|---|---|
| White | 14,327 | 64.9% |
| Hispanic or Latino | 1,996 | 9% |
| Black or African American | 1,864 | 8.4% |
| Two or more races | 1,382 | 6.3% |
| Asian | 1,161 | 5.3% |
| Other race | 1,054 | 4.8% |
| American Indian / Alaska Native | 289 | 1.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 15.1% | 22.6% | 37.0% |
| $50k – $100k | 24.0% | 24.7% | 27.0% |
| $100k – $200k | 42.7% | 34.6% | 24.4% |
| Over $200k | 18.2% | 18.0% | 11.5% |
Under $10k
1.0%
$10k–$15k
0.2%
$15k–$25k
4.5%
$25k–$35k
4.4%
$35k–$50k
3.8%
$50k–$75k
11.2%
$75k–$100k
7.7%
$100k–$150k
28.6%
$150k–$200k
15.7%
$200k+
23.0%
| Range | % of households |
|---|---|
| Under $10k | 1.0% |
| $10k–$15k | 0.2% |
| $15k–$25k | 4.5% |
| $25k–$35k | 4.4% |
| $35k–$50k | 3.8% |
| $50k–$75k | 11.2% |
| $75k–$100k | 7.7% |
| $100k–$150k | 28.6% |
| $150k–$200k | 15.7% |
| $200k+ | 23.0% |
| Median income | $128,728 |
Housing
Home values
Under $50k
0.5%
$50k–$100k
1.0%
$150k–$200k
3.7%
$200k–$300k
3.9%
$300k–$500k
65.2%
$500k–$1M
25.4%
$1M+
0.2%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $431,800 |
| Median rent / month | $2,662 |
| Owner occupied | 81.9% |
| Renter occupied | 18.1% |
| Vacant | 6.3% |
| Single-family detached | 87.5% |
| Large apartment buildings | 2.0% |
| Mobile homes | 0.2% |
| Median rooms | 6.4 |
| Avg household size (owned) | 3.53 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.4% |
| 2010–2019 | 2.1% |
| 2000–2009 | 3.7% |
| 1990–1999 | 8.0% |
| 1980–1989 | 7.8% |
| 1970–1979 | 33.2% |
| 1960–1969 | 21.3% |
| 1950–1959 | 10.8% |
| 1940–1949 | 6.9% |
| 1939 or earlier | 5.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.6% |
| 1 bedroom | 4.1% |
| 2 bedrooms | 17.0% |
| 3 bedrooms | 46.7% |
| 4 bedrooms | 24.9% |
| 5+ bedrooms | 5.6% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 3.5% |
| 1 vehicle | 19.8% |
| 2 vehicles | 41.0% |
| 3 or more | 35.8% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 22.6% |
| Electricity | 6.8% |
| Propane / LP gas | 0.9% |
| Fuel oil | 67.4% |
| Wood | 0.5% |
| Solar | 0.5% |
| No fuel used | 0.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,545 | 62.9% |
| Cohabiting couple | 549 | 9.7% |
| Male householder, no spouse | 648 | 11.5% |
| Female householder, no spouse | 897 | 15.9% |
| Households with children under 18 | 2,264 | 40.1% |
| Households with seniors (65+) | 1,365 | 24.2% |
| Average household size | 3.53 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 42.1% | 33.4% |
| Married | 47.1% | 50.5% |
| Separated | 1.0% | 1.7% |
| Widowed | 3.9% | 5.8% |
| Divorced | 5.9% | 8.6% |
Education
Less than 9th grade
5.8%
Some HS, no diploma
6.6%
HS graduate
29.1%
Some college, no degree
15.2%
Associate's degree
11.6%
Bachelor's degree
19.2%
Graduate / professional
12.4%
| Metric | % |
|---|---|
| HS diploma or higher | 87.6% |
| Bachelor's or higher | 31.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 173 | 3.3% |
| Kindergarten | 282 | 5.4% |
| Elementary school | 1,962 | 37.9% |
| High school | 1,194 | 23.1% |
| College / grad school | 1,568 | 30.3% |
Employment
Industry of employment
Education & healthcare
26.4%
Construction
12.3%
Retail trade
12.3%
Public administration
7.3%
Finance & real estate
7.0%
Transportation & utilities
6.6%
Arts, food & hospitality
6.4%
Professional & management
6.2%
Manufacturing
5.7%
Other services
4.9%
Wholesale trade
2.4%
Information
2.2%
Agriculture & mining
0.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 38.4% |
| Service | 16.5% |
| Sales & office | 22.0% |
| Natural resources & construction | 12.2% |
| Production & transportation | 10.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 78.7% |
| Government | 20.5% |
| Self-employed | 0.5% |
| Unpaid family workers | 0.3% |
Commute
| Method | % |
|---|---|
| Drive alone | 80.6% |
| Carpool | 5.6% |
| Public transit | 5.1% |
| Walk | 1.8% |
| Work from home | 5.4% |
| Other means | 1.4% |
| Avg commute (minutes) | 31.2 |
Poverty
All people
6.5%
Under 18 years
9.8%
18 and over
5.5%
Married-couple families
4.7%
Female-led households
14.2%
Income support
| Source | % of households |
|---|---|
| Social Security | 27.8% |
| Retirement income | 26.0% |
| Supplemental Security | 4.7% |
| Cash public assistance | 1.3% |
| Food stamps / SNAP | 7.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 27.0% |
| High blood pressure | 24.9% |
| High cholesterol | 28.0% |
| Diabetes | 7.0% |
| Heart disease | 4.3% |
| Stroke | 2.0% |
| Asthma | 9.6% |
| Arthritis | 17.2% |
| Kidney disease | 2.1% |
| Pulmonary disease | 4.9% |
| Cancer | 5.4% |
| Behavior / access | % |
|---|---|
| Smoking | 15.2% |
| Binge drinking | 19.9% |
| No physical activity | 20.9% |
| Less than 7 hrs sleep | 34.7% |
| Depression | 17.8% |
| Fair or poor health | 9.8% |
| Poor mental health | 14.1% |
| Poor physical health | 8.0% |
| No health insurance | 11.0% |
| Visited doctor (checkup) | 76.4% |
| Visited dentist | 68.7% |
| Cholesterol screening | 90.7% |
| Teeth loss | 10.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 567 | 3.7% |
| Disability | % |
|---|---|
| Any disability | 9.0% |
| Under 18 | 2.9% |
| 18–64 years | 7.6% |
| 65 and over | 32.4% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 76.2% |
| Public insurance | 28.8% |
| No insurance | 5.1% |
| Uninsured under 19 | 3.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 18,611 | 92.7% |
| Spanish | 1,680 | 9.0% |
| Other Indo-European | 977 | 5.2% |
| Asian & Pacific Islander | 497 | 2.7% |
| Other languages | 183 | 1.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 16,515 | 82.3% |
| Born in same state | 16,315 | 81.3% |
| Born in different state | 15,299 | 76.2% |
| Foreign born | 200 | 1.0% |
| Naturalized citizen | 3,562 | 17.7% |
| Not a US citizen | 2,576 | 72.3% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,906 | 14.5% |
| Arab | 1,748 | 8.7% |
| French | 324 | 1.6% |
| Polish | 41 | 0.2% |
| Ancestry | Count | % |
|---|---|---|
| German | 40 | 0.2% |
| Norwegian | 25 | 0.1% |
| Dutch | 16 | 0.1% |
| English | 10 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 28.1% |
| Internet access | 98.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 11738
What city is ZIP code 11738 in?
ZIP code 11738 is primarily assigned to Farmingville, New York.
What county is ZIP code 11738 in?
ZIP code 11738 falls within Suffolk County, New York.
Is ZIP code 11738 mostly owner-occupied?
82% of occupied units in ZIP code 11738 are owner-occupied, well above the national average.
What is the median household income in ZIP code 11738?
The median household income in ZIP code 11738 is $128,728, above the national median of ~$75,000.
What is the typical home value in ZIP code 11738?
The median home value in ZIP code 11738 is $431,800.
What is the population of ZIP code 11738?
ZIP code 11738 has an estimated population of 20,077 residents, with a density of 4,011 people per square mile.
What timezone is ZIP code 11738 in?
ZIP code 11738 observes the EST timezone.