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New York ZIP Codes
Suffolk County
Shelter Island Heights, NY
11965
11965 ZIP Code — Shelter Island Heights, NY
Suffolk County, New York
ZIP code 11965 is located in
Shelter Island Heights ,
New York ,
within Suffolk County .
It covers approximately 2.74 square miles and serves a population of
491 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 631 .
About ZIP code 11965
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $1,058,000. Owner-occupancy is high at 75%, well above the national average.
The gap between median ($82,154) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 23% of residents, above the national average.
The dominant occupation class is production, transportation, and material moving, with public administration as the leading industry. Remote work is prevalent — 34% of workers work from home.
Educational attainment is high — 85% of residents hold a bachelor's degree or higher, well above the national average of 33%.
17% of residents lack health insurance, above the national average.
Notable community characteristics include a notable veteran presence at 27% of civilians, above the national average of 7%.
Overall, ZIP code 11965 reflects a community defined by a highly educated population, economic challenges above the national average, a strong veteran community, high homeownership, and a high rate of remote workers.
11965 ZIP code map
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Cities in ZIP code 11965
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Demographics
updated 06/2026
Population
Total population
491
Population density
179 / sq mi
State FIPS
36
County FIPS
103
Geography
Land area
2.74 sq mi
Water area
7.15 sq mi
Latitude
41.0742
Longitude
-72.3306
Timezone
Eastern (ET)
Area code
631
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
0.0%
22.6%
37.0%
$50k – $100k
41.0%
24.7%
27.0%
$100k – $200k
36.8%
34.6%
24.4%
Over $200k
22.2%
18.0%
11.5%
Demographics & statistics
$82,154
Median household income
$1,058,000
Median home value
85.3%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 0 0.0% 18 and over 491 100.0% 65 and over 193 39.3% Median age 62.3 years
Race & ethnicity
Black or African American
0.2%
Group Count % White 488 99% Hispanic or Latino 2 0.4% Other race 2 0.4% Black or African American 1 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
0.0%
22.6%
37.0%
$50k – $100k
41.0%
24.7%
27.0%
$100k – $200k
36.8%
34.6%
24.4%
Over $200k
22.2%
18.0%
11.5%
Range % of households Under $10k 13.5% $50k–$75k 24.8% $75k–$100k 24.2% $100k–$150k 19.0% $200k+ 18.4% Median income $82,154
Housing
Housing overview
Metric Value Median home value $1,058,000 Median rent / month $0 Owner occupied 75.2% Renter occupied 24.8% Vacant 60.0% Single-family detached 95.0% Large apartment buildings 0.0% Mobile homes 0.0% Median rooms 6.4 Avg household size (owned) 1.54
Year built
Era % 2020 or later 0.0% 2010–2019 0.0% 2000–2009 18.2% 1990–1999 5.1% 1980–1989 13.1% 1970–1979 13.9% 1960–1969 11.9% 1950–1959 8.2% 1940–1949 0.0% 1939 or earlier 29.6%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 3.0% 2 bedrooms 22.2% 3 bedrooms 37.0% 4 bedrooms 19.2% 5+ bedrooms 18.5%
Vehicles per household
Vehicles % of households No vehicle 0.0% 1 vehicle 65.1% 2 vehicles 26.2% 3 or more 8.6%
Heating fuel
Fuel type % Utility gas 24.8% Electricity 10.4% Propane / LP gas 5.8% Fuel oil 59.1%
Households & families
Household type Count % Married-couple family 74 21.3% Cohabiting couple 0 0.0% Male householder, no spouse 106 30.5% Female householder, no spouse 167 48.1% Households with children under 18 0 0.0% Households with seniors (65+) 147 42.4% Average household size 1.41
Marital status
Status Male Female Never married 57.5% 36.4% Married 41.4% 24.3% Separated 1.1% 0.0% Widowed 0.0% 11.8% Divorced 0.0% 27.5%
Education
Some college, no degree
13.8%
Graduate / professional
25.2%
Metric % HS diploma or higher 99.1% Bachelor's or higher 85.3%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 0 0.0% Kindergarten 0 0.0% Elementary school 0 0.0% High school 0 0.0% College / grad school 0 0.0%
Employment
Industry of employment
Transportation & utilities
25.8%
Public administration
14.1%
Arts, food & hospitality
11.7%
Finance & real estate
11.1%
Professional & management
9.3%
Occupation
Category % Management, business & arts 24.6% Service 23.7% Sales & office 25.2% Natural resources & construction 0.6% Production & transportation 25.8%
Employment type
Type % Private sector 61.0% Government 14.1% Self-employed 24.9% Unpaid family workers 0.0%
Commute
Method % Drive alone 27.9% Carpool 25.8% Public transit 11.1% Walk 0.9% Work from home 34.2% Other means 0.0% Avg commute (minutes) 0.0
Poverty
Married-couple families
0.0%
Female-led households
100.0%
Income support
Source % of households Social Security 28.8% Retirement income 37.5% Supplemental Security 0.0% Cash public assistance 0.0% Food stamps / SNAP 0.0%
Health indicators
Condition % Obesity 24.4% High blood pressure 33.2% High cholesterol 35.6% Diabetes 8.8% Heart disease 7.0% Stroke 2.8% Asthma 8.7% Arthritis 25.0% Kidney disease 3.1% Pulmonary disease 5.7% Cancer 10.1%
Behavior / access % Smoking 9.9% Binge drinking 14.9% No physical activity 18.7% Less than 7 hrs sleep 29.6% Depression 15.3% Fair or poor health 9.1% Poor mental health 10.5% Poor physical health 8.0% No health insurance 7.0% Visited doctor (checkup) 82.3% Visited dentist 76.4% Cholesterol screening 95.5% Teeth loss 7.2%
Veterans & disability
Veterans Count % Civilian veterans 132 26.9%
Disability % Any disability 0.0% Under 18 0.0% 18–64 years 0.0% 65 and over 0.0%
Health insurance coverage
Type % Private insurance 73.7% Public insurance 20.4% No insurance 17.3% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 491 100.0% Spanish 0 0.0% Other Indo-European 0 0.0% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 451 91.9% Born in same state 451 91.9% Born in different state 321 65.4% Foreign born 0 0.0% Naturalized citizen 40 8.1% Not a US citizen 2 5.0%
Ancestry
Ancestry Count % Italian 83 16.9%
Ancestry Count % French 37 7.5%
Technology access
Metric % of households Computer access 70.7% Internet access 100.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 11965
What city is ZIP code 11965 in?
ZIP code 11965 is primarily assigned to Shelter Island Heights, New York.
What county is ZIP code 11965 in?
ZIP code 11965 falls within Suffolk County, New York.
How educated is the population of ZIP code 11965?
85% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
Does ZIP code 11965 have an older population?
39% of residents in ZIP code 11965 are 65 or older, above the national average of ~17%.
Does ZIP code 11965 have a large veteran population?
27% of civilians in ZIP code 11965 are veterans, above the national average of ~7%.
What is the poverty rate in ZIP code 11965?
23% of residents in ZIP code 11965 live below the poverty line, above the national average.
What timezone is ZIP code 11965 in?
ZIP code 11965 observes the EST timezone.
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