11778 ZIP Code — Rocky Point, NY
Suffolk County, New York
ZIP code 11778 is located in Rocky Point, New York, within Suffolk County. It covers approximately 6.74 square miles and serves a population of 12,496 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 631/516.
About ZIP code 11778
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 $380,000. Owner-occupancy is high at 94%, well above the national average.
Median household income is $114,848. 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 37 minutes suggests many residents work outside the immediate area.
Educational attainment is near the national average, with 37% of residents holding a bachelor's degree or higher.
12,496
population
6.74
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
11778 ZIP code map
Cities in ZIP code 11778
Below are the cities the US Postal Service accepts for ZIP code 11778. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Rocky Point | Preferred |
Nearby ZIP codes
11789 Sound Beach (2.3 mi)
11764 Miller Place (2.4 mi)
11786 Shoreham (2.4 mi)
11766 Mount Sinai (4 mi)
11961 Ridge (4.2 mi)
11953 Middle Island (4.3 mi)
11792 Wading River (5.1 mi)
11727 Coram (5.6 mi)
11776 Port Jefferson Station (6 mi)
11777 Port Jefferson (6.9 mi)
11784 Selden (7.2 mi)
11980 Yaphank (7.6 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 12,496 |
| Population density | 1,854 / sq mi |
| State FIPS | 36 |
| County FIPS | 103 |
| Geography | |
|---|---|
| Land area | 6.74 sq mi |
| Water area | 1.33 sq mi |
| Latitude | 40.9396 |
| Longitude | -72.9342 |
| 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 | 17.7% | 22.6% | 37.0% |
| $50k – $100k | 32.4% | 24.7% | 27.0% |
| $100k – $200k | 37.0% | 34.6% | 24.4% |
| Over $200k | 12.9% | 18.0% | 11.5% |
Demographics & statistics
12,496
Population
1,854
People per sq mi
39.0
Median age
$114,848
Median household income
$51,882
Per capita income
$380,000
Median home value
$1,774
Median monthly rent
93.6%
Home ownership
3.1%
Poverty rate
6.3%
Unemployment
4,592
Housing units
36.8%
Bachelor's or higher
Age distribution
Male
Female
426
Under 5
461
328
5–9
356
471
10–14
510
372
15–19
402
380
20–24
412
759
25–34
822
640
35–44
694
1,136
45–54
1,230
476
55–59
515
286
60–64
310
376
65–74
407
297
75–84
321
52
85+
57
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2,984 | 23.9% |
| 18 and over | 9,512 | 76.1% |
| 65 and over | 1,510 | 12.1% |
| Median age | 39.0 years | |
Race & ethnicity
White
85.8%
Two or more races
5.8%
Hispanic or Latino
5%
Other race
2%
Black or African American
0.8%
Asian
0.6%
| Group | Count | % |
|---|---|---|
| White | 11,293 | 85.8% |
| Two or more races | 764 | 5.8% |
| Hispanic or Latino | 661 | 5% |
| Other race | 262 | 2% |
| Black or African American | 102 | 0.8% |
| Asian | 75 | 0.6% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 17.7% | 22.6% | 37.0% |
| $50k – $100k | 32.4% | 24.7% | 27.0% |
| $100k – $200k | 37.0% | 34.6% | 24.4% |
| Over $200k | 12.9% | 18.0% | 11.5% |
Under $10k
2.3%
$10k–$15k
1.6%
$15k–$25k
2.5%
$25k–$35k
2.7%
$35k–$50k
5.0%
$50k–$75k
13.3%
$75k–$100k
13.9%
$100k–$150k
26.3%
$150k–$200k
11.5%
$200k+
20.9%
| Range | % of households |
|---|---|
| Under $10k | 2.3% |
| $10k–$15k | 1.6% |
| $15k–$25k | 2.5% |
| $25k–$35k | 2.7% |
| $35k–$50k | 5.0% |
| $50k–$75k | 13.3% |
| $75k–$100k | 13.9% |
| $100k–$150k | 26.3% |
| $150k–$200k | 11.5% |
| $200k+ | 20.9% |
| Median income | $114,848 |
Housing
Home values
Under $50k
0.8%
$50k–$100k
3.0%
$100k–$150k
2.4%
$150k–$200k
1.0%
$200k–$300k
14.4%
$300k–$500k
58.2%
$500k–$1M
19.3%
$1M+
0.9%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $380,000 |
| Median rent / month | $1,774 |
| Owner occupied | 93.6% |
| Renter occupied | 6.4% |
| Vacant | 6.3% |
| Single-family detached | 92.2% |
| Large apartment buildings | 0.2% |
| Mobile homes | 0.0% |
| Median rooms | 6.1 |
| Avg household size (owned) | 2.75 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 1.1% |
| 2000–2009 | 4.9% |
| 1990–1999 | 5.9% |
| 1980–1989 | 9.5% |
| 1970–1979 | 22.4% |
| 1960–1969 | 16.5% |
| 1950–1959 | 17.7% |
| 1940–1949 | 11.7% |
| 1939 or earlier | 10.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.7% |
| 1 bedroom | 7.9% |
| 2 bedrooms | 19.6% |
| 3 bedrooms | 39.6% |
| 4 bedrooms | 26.6% |
| 5+ bedrooms | 4.7% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.8% |
| 1 vehicle | 27.5% |
| 2 vehicles | 45.0% |
| 3 or more | 24.7% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 11.5% |
| Electricity | 3.5% |
| Propane / LP gas | 2.3% |
| Fuel oil | 78.8% |
| Wood | 3.1% |
| No fuel used | 0.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 2,543 | 55.6% |
| Cohabiting couple | 251 | 5.5% |
| Male householder, no spouse | 724 | 15.8% |
| Female householder, no spouse | 1,058 | 23.1% |
| Households with children under 18 | 1,812 | 39.6% |
| Households with seniors (65+) | 1,159 | 25.3% |
| Average household size | 2.72 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 33.5% | 27.5% |
| Married | 53.6% | 50.1% |
| Separated | 0.6% | 1.3% |
| Widowed | 1.7% | 8.9% |
| Divorced | 10.6% | 12.2% |
Education
Less than 9th grade
3.7%
Some HS, no diploma
2.1%
HS graduate
29.4%
Some college, no degree
19.3%
Associate's degree
8.8%
Bachelor's degree
20.7%
Graduate / professional
16.1%
| Metric | % |
|---|---|
| HS diploma or higher | 94.2% |
| Bachelor's or higher | 36.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 250 | 7.8% |
| Kindergarten | 149 | 4.6% |
| Elementary school | 1,306 | 40.6% |
| High school | 795 | 24.7% |
| College / grad school | 717 | 22.3% |
Employment
Industry of employment
Education & healthcare
34.0%
Professional & management
13.4%
Retail trade
9.1%
Construction
7.0%
Arts, food & hospitality
6.3%
Transportation & utilities
6.2%
Manufacturing
5.4%
Finance & real estate
4.7%
Public administration
4.6%
Other services
3.7%
Wholesale trade
2.9%
Information
1.9%
Agriculture & mining
0.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 46.9% |
| Service | 14.4% |
| Sales & office | 24.9% |
| Natural resources & construction | 9.1% |
| Production & transportation | 4.7% |
Employment type
| Type | % |
|---|---|
| Private sector | 66.8% |
| Government | 29.9% |
| Self-employed | 2.8% |
| Unpaid family workers | 0.6% |
Commute
| Method | % |
|---|---|
| Drive alone | 85.9% |
| Carpool | 5.5% |
| Public transit | 2.2% |
| Walk | 0.0% |
| Work from home | 5.8% |
| Other means | 0.6% |
| Avg commute (minutes) | 36.7 |
Poverty
All people
3.1%
Under 18 years
2.0%
18 and over
3.4%
Married-couple families
1.9%
Female-led households
4.1%
Income support
| Source | % of households |
|---|---|
| Social Security | 27.7% |
| Retirement income | 24.1% |
| Supplemental Security | 6.9% |
| Cash public assistance | 2.0% |
| Food stamps / SNAP | 3.9% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 26.4% |
| High blood pressure | 24.1% |
| High cholesterol | 27.6% |
| Diabetes | 6.4% |
| Heart disease | 4.1% |
| Stroke | 1.9% |
| Asthma | 9.4% |
| Arthritis | 16.8% |
| Kidney disease | 2.0% |
| Pulmonary disease | 4.5% |
| Cancer | 5.6% |
| Behavior / access | % |
|---|---|
| Smoking | 14.2% |
| Binge drinking | 20.7% |
| No physical activity | 18.7% |
| Less than 7 hrs sleep | 33.9% |
| Depression | 17.7% |
| Fair or poor health | 8.5% |
| Poor mental health | 13.6% |
| Poor physical health | 7.4% |
| No health insurance | 9.2% |
| Visited doctor (checkup) | 76.4% |
| Visited dentist | 71.6% |
| Cholesterol screening | 91.6% |
| Teeth loss | 9.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 581 | 6.1% |
| Disability | % |
|---|---|
| Any disability | 10.7% |
| Under 18 | 4.8% |
| 18–64 years | 9.0% |
| 65 and over | 31.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 83.2% |
| Public insurance | 26.1% |
| No insurance | 2.1% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 11,609 | 92.9% |
| Spanish | 158 | 1.4% |
| Other Indo-European | 46 | 0.4% |
| Asian & Pacific Islander | 59 | 0.5% |
| Other languages | 27 | 0.2% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 11,919 | 95.4% |
| Born in same state | 11,842 | 94.8% |
| Born in different state | 10,934 | 87.5% |
| Foreign born | 77 | 0.6% |
| Naturalized citizen | 577 | 4.6% |
| Not a US citizen | 344 | 59.6% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,982 | 23.9% |
| Arab | 1,041 | 8.3% |
| French | 671 | 5.4% |
| Polish | 337 | 2.7% |
| Irish | 105 | 0.8% |
| Ancestry | Count | % |
|---|---|---|
| German | 91 | 0.7% |
| Norwegian | 62 | 0.5% |
| English | 33 | 0.3% |
| Dutch | 15 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 36.6% |
| Internet access | 95.6% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 11778
What city is ZIP code 11778 in?
ZIP code 11778 is primarily assigned to Rocky Point, New York.
What county is ZIP code 11778 in?
ZIP code 11778 falls within Suffolk County, New York.
Is ZIP code 11778 mostly owner-occupied?
94% of occupied units in ZIP code 11778 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 11778?
The median home value in ZIP code 11778 is $380,000.
What is the median household income in ZIP code 11778?
The median household income in ZIP code 11778 is $114,848, above the national median of ~$75,000.
What is the population of ZIP code 11778?
ZIP code 11778 has an estimated population of 12,496 residents, with a density of 1,854 people per square mile.
What timezone is ZIP code 11778 in?
ZIP code 11778 observes the EST timezone.