11789 ZIP Code — Sound Beach, NY
Suffolk County, New York
ZIP code 11789 is located in Sound Beach, New York, within Suffolk County. It covers approximately 1.69 square miles and serves a population of 7,434 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 631/516.
About ZIP code 11789
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 $347,900. Owner-occupancy is high at 82%, well above the national average.
Median household income is $123,794. The poverty rate of 3% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 39 minutes suggests many residents work outside the immediate area.
Educational attainment is near the national average, with 40% of residents holding a bachelor's degree or higher.
7,434
population
1.69
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
11789 ZIP code map
Cities in ZIP code 11789
Below are the cities the US Postal Service accepts for ZIP code 11789. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Sound Beach | Acceptable |
| Sound Beach | Preferred |
Nearby ZIP codes
11764 Miller Place (1.5 mi)
11778 Rocky Point (2.3 mi)
11766 Mount Sinai (2.5 mi)
11786 Shoreham (4.6 mi)
11776 Port Jefferson Station (4.7 mi)
11777 Port Jefferson (4.8 mi)
11953 Middle Island (5.4 mi)
11727 Coram (5.7 mi)
11961 Ridge (6.3 mi)
11784 Selden (6.9 mi)
11792 Wading River (7.2 mi)
11733 East Setauket (7.5 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 7,434 |
| Population density | 4,399 / sq mi |
| State FIPS | 36 |
| County FIPS | 103 |
| Geography | |
|---|---|
| Land area | 1.69 sq mi |
| Water area | 0.92 sq mi |
| Latitude | 40.9562 |
| Longitude | -72.9733 |
| Timezone | Eastern (ET) |
| Area code | 631/516 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 24.8% | 22.6% | 37.0% |
| $50k – $100k | 20.8% | 24.7% | 27.0% |
| $100k – $200k | 43.3% | 34.6% | 24.4% |
| Over $200k | 11.1% | 18.0% | 11.5% |
Demographics & statistics
7,434
Population
4,399
People per sq mi
43.0
Median age
$123,794
Median household income
$45,730
Per capita income
$347,900
Median home value
$2,726
Median monthly rent
82.4%
Home ownership
2.5%
Poverty rate
5.1%
Unemployment
2,363
Housing units
40.3%
Bachelor's or higher
Age distribution
Male
Female
92
Under 5
102
287
5–9
316
230
10–14
253
394
15–19
433
130
20–24
142
309
25–34
340
543
35–44
597
613
45–54
673
294
55–59
323
226
60–64
249
249
65–74
273
143
75–84
158
31
85+
34
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,752 | 23.6% |
| 18 and over | 5,682 | 76.4% |
| 65 and over | 888 | 11.9% |
| Median age | 43.0 years | |
Race & ethnicity
White
78.7%
Two or more races
7.4%
Hispanic or Latino
7.3%
Asian
2.5%
Other race
2.1%
Black or African American
1.8%
American Indian / Alaska Native
0.2%
| Group | Count | % |
|---|---|---|
| White | 6,314 | 78.7% |
| Two or more races | 594 | 7.4% |
| Hispanic or Latino | 585 | 7.3% |
| Asian | 200 | 2.5% |
| Other race | 170 | 2.1% |
| Black or African American | 143 | 1.8% |
| American Indian / Alaska Native | 13 | 0.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 24.8% | 22.6% | 37.0% |
| $50k – $100k | 20.8% | 24.7% | 27.0% |
| $100k – $200k | 43.3% | 34.6% | 24.4% |
| Over $200k | 11.1% | 18.0% | 11.5% |
Under $10k
0.8%
$10k–$15k
2.2%
$15k–$25k
6.5%
$25k–$35k
3.1%
$35k–$50k
9.0%
$50k–$75k
7.5%
$75k–$100k
15.8%
$100k–$150k
24.1%
$150k–$200k
18.1%
$200k+
12.9%
| Range | % of households |
|---|---|
| Under $10k | 0.8% |
| $10k–$15k | 2.2% |
| $15k–$25k | 6.5% |
| $25k–$35k | 3.1% |
| $35k–$50k | 9.0% |
| $50k–$75k | 7.5% |
| $75k–$100k | 15.8% |
| $100k–$150k | 24.1% |
| $150k–$200k | 18.1% |
| $200k+ | 12.9% |
| Median income | $123,794 |
Housing
Home values
Under $50k
1.5%
$50k–$100k
3.7%
$150k–$200k
3.0%
$200k–$300k
22.7%
$300k–$500k
61.4%
$500k–$1M
6.0%
$1M+
1.7%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $347,900 |
| Median rent / month | $2,726 |
| Owner occupied | 82.4% |
| Renter occupied | 17.6% |
| Vacant | 3.3% |
| Single-family detached | 97.2% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.8% |
| Median rooms | 5.9 |
| Avg household size (owned) | 2.81 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.4% |
| 2000–2009 | 5.2% |
| 1990–1999 | 5.3% |
| 1980–1989 | 7.9% |
| 1970–1979 | 23.5% |
| 1960–1969 | 9.8% |
| 1950–1959 | 17.1% |
| 1940–1949 | 15.4% |
| 1939 or earlier | 15.5% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.4% |
| 1 bedroom | 11.8% |
| 2 bedrooms | 25.5% |
| 3 bedrooms | 34.6% |
| 4 bedrooms | 24.4% |
| 5+ bedrooms | 3.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.3% |
| 1 vehicle | 26.6% |
| 2 vehicles | 41.2% |
| 3 or more | 29.9% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 8.4% |
| Electricity | 1.3% |
| Propane / LP gas | 5.2% |
| Fuel oil | 82.5% |
| Wood | 0.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,396 | 50.7% |
| Cohabiting couple | 217 | 7.9% |
| Male householder, no spouse | 470 | 17.1% |
| Female householder, no spouse | 670 | 24.3% |
| Households with children under 18 | 994 | 36.1% |
| Households with seniors (65+) | 655 | 23.8% |
| Average household size | 2.68 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 33.9% | 32.8% |
| Married | 55.1% | 43.8% |
| Separated | 2.8% | 1.8% |
| Widowed | 1.0% | 7.6% |
| Divorced | 7.3% | 14.0% |
Education
Less than 9th grade
0.3%
Some HS, no diploma
1.9%
HS graduate
25.4%
Some college, no degree
21.0%
Associate's degree
11.1%
Bachelor's degree
22.2%
Graduate / professional
18.1%
| Metric | % |
|---|---|
| HS diploma or higher | 97.8% |
| Bachelor's or higher | 40.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 81 | 3.7% |
| Kindergarten | 112 | 5.1% |
| Elementary school | 825 | 37.3% |
| High school | 764 | 34.6% |
| College / grad school | 428 | 19.4% |
Employment
Industry of employment
Education & healthcare
41.3%
Construction
8.7%
Retail trade
7.6%
Public administration
7.0%
Arts, food & hospitality
6.7%
Professional & management
6.4%
Finance & real estate
6.2%
Transportation & utilities
4.8%
Other services
4.0%
Manufacturing
3.9%
Information
2.7%
Agriculture & mining
0.4%
Wholesale trade
0.3%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 46.4% |
| Service | 17.2% |
| Sales & office | 17.4% |
| Natural resources & construction | 14.4% |
| Production & transportation | 4.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 63.7% |
| Government | 27.5% |
| Self-employed | 8.8% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 81.0% |
| Carpool | 8.4% |
| Public transit | 2.9% |
| Walk | 0.0% |
| Work from home | 5.6% |
| Other means | 2.1% |
| Avg commute (minutes) | 38.5 |
Poverty
All people
2.5%
Under 18 years
0.0%
18 and over
3.3%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 26.7% |
| Retirement income | 20.8% |
| Supplemental Security | 2.8% |
| Cash public assistance | 4.7% |
| Food stamps / SNAP | 0.9% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 26.5% |
| High blood pressure | 23.8% |
| High cholesterol | 27.3% |
| Diabetes | 6.3% |
| Heart disease | 4.0% |
| Stroke | 1.9% |
| Asthma | 9.5% |
| Arthritis | 16.7% |
| Kidney disease | 2.0% |
| Pulmonary disease | 4.5% |
| Cancer | 5.5% |
| Behavior / access | % |
|---|---|
| Smoking | 14.1% |
| Binge drinking | 20.6% |
| No physical activity | 18.4% |
| Less than 7 hrs sleep | 33.9% |
| Depression | 17.9% |
| Fair or poor health | 8.5% |
| Poor mental health | 13.7% |
| Poor physical health | 7.4% |
| No health insurance | 8.7% |
| Visited doctor (checkup) | 76.4% |
| Visited dentist | 71.6% |
| Cholesterol screening | 91.6% |
| Teeth loss | 9.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 155 | 2.7% |
| Disability | % |
|---|---|
| Any disability | 8.3% |
| Under 18 | 4.3% |
| 18–64 years | 6.3% |
| 65 and over | 26.7% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 87.0% |
| Public insurance | 21.7% |
| No insurance | 3.5% |
| Uninsured under 19 | 0.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 7,240 | 97.4% |
| Spanish | 280 | 3.9% |
| Other Indo-European | 102 | 1.4% |
| Asian & Pacific Islander | 70 | 1.0% |
| Other languages | 108 | 1.5% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 6,720 | 90.4% |
| Born in same state | 6,679 | 89.8% |
| Born in different state | 6,293 | 84.7% |
| Foreign born | 41 | 0.6% |
| Naturalized citizen | 714 | 9.6% |
| Not a US citizen | 516 | 72.3% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,027 | 27.3% |
| Arab | 410 | 5.5% |
| Polish | 135 | 1.8% |
| French | 105 | 1.4% |
| Ancestry | Count | % |
|---|---|---|
| German | 76 | 1% |
| Norwegian | 46 | 0.6% |
| English | 27 | 0.4% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 37.0% |
| Internet access | 93.8% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 11789
What city is ZIP code 11789 in?
ZIP code 11789 is primarily assigned to Sound Beach, New York.
What county is ZIP code 11789 in?
ZIP code 11789 falls within Suffolk County, New York.
Is ZIP code 11789 mostly owner-occupied?
82% of occupied units in ZIP code 11789 are owner-occupied, well above the national average.
What is the median household income in ZIP code 11789?
The median household income in ZIP code 11789 is $123,794, above the national median of ~$75,000.
What is the typical home value in ZIP code 11789?
The median home value in ZIP code 11789 is $347,900.
What is the population of ZIP code 11789?
ZIP code 11789 has an estimated population of 7,434 residents, with a density of 4,394 people per square mile.
What timezone is ZIP code 11789 in?
ZIP code 11789 observes the EST timezone.