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New York ZIP Codes
Sullivan County
Highland Lake, NY
12743
12743 ZIP Code — Highland Lake, NY
Sullivan County, New York
ZIP code 12743 is located in
Highland Lake ,
New York ,
within Sullivan County .
It covers approximately 7.51 square miles and serves a population of
310 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 845 .
About ZIP code 12743
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 $309,200. Owner-occupancy is high at 92%, well above the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 33 minutes is near the national average.
Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.
Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.
Overall, ZIP code 12743 reflects a community defined by a strong veteran community, high homeownership, and a significant Social Security-dependent population.
12743 ZIP code map
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Cities in ZIP code 12743
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
310
Population density
41 / sq mi
State FIPS
36
County FIPS
105
Geography
Land area
7.51 sq mi
Water area
0.62 sq mi
Latitude
41.5355
Longitude
-74.8414
Timezone
Eastern (ET)
Area code
845
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
26.0%
43.2%
37.0%
$50k – $100k
36.6%
29.3%
27.0%
$100k – $200k
22.8%
22.4%
24.4%
Over $200k
14.6%
5.2%
11.5%
Demographics & statistics
$0
Median household income
$220,525
Per capita income
$309,200
Median home value
30.8%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 31 10.0%
18 and over 279 90.0%
65 and over 117 37.7%
Median age 60.6 years
Race & ethnicity
Black or African American
0.6%
Group Count %
White 285 89.9%
Two or more races 23 7.3%
Hispanic or Latino 7 2.2%
Black or African American 2 0.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
26.0%
43.2%
37.0%
$50k – $100k
36.6%
29.3%
27.0%
$100k – $200k
22.8%
22.4%
24.4%
Over $200k
14.6%
5.2%
11.5%
Range % of households
$35k–$50k 4.2%
$50k–$75k 16.9%
$75k–$100k 26.8%
$100k–$150k 7.7%
$150k–$200k 6.3%
$200k+ 38.0%
Median income $0
Housing
Housing overview
Metric Value
Median home value $309,200
Median rent / month $0
Owner occupied 92.3%
Renter occupied 7.7%
Vacant 54.8%
Single-family detached 96.2%
Large apartment buildings 0.0%
Mobile homes 1.3%
Median rooms 6.1
Avg household size (owned) 2.08
Year built
Era %
2020 or later 0.0%
2010–2019 3.5%
2000–2009 7.6%
1990–1999 8.9%
1980–1989 3.8%
1970–1979 14.0%
1960–1969 18.8%
1950–1959 15.9%
1940–1949 6.1%
1939 or earlier 21.3%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 1.9%
2 bedrooms 18.2%
3 bedrooms 58.3%
4 bedrooms 14.3%
5+ bedrooms 7.3%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 26.1%
2 vehicles 50.0%
3 or more 23.9%
Heating fuel
Fuel type %
Electricity 9.2%
Propane / LP gas 36.6%
Fuel oil 25.4%
Wood 16.9%
Households & families
Household type Count %
Married-couple family 96 67.6%
Cohabiting couple 20 14.1%
Male householder, no spouse 0 0.0%
Female householder, no spouse 26 18.3%
Households with children under 18 23 16.2%
Households with seniors (65+) 78 54.9%
Average household size 2.18
Marital status
Status Male Female
Never married 5.2% 0.0%
Married 72.6% 59.6%
Separated 5.9% 0.0%
Widowed 14.8% 31.1%
Divorced 1.5% 9.3%
Education
Some college, no degree
15.1%
Graduate / professional
29.4%
Metric %
HS diploma or higher 94.3%
Bachelor's or higher 30.8%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 6 19.4%
Elementary school 11 35.5%
High school 7 22.6%
College / grad school 7 22.6%
Employment
Industry of employment
Education & healthcare
36.2%
Public administration
4.6%
Professional & management
2.3%
Occupation
Category %
Management, business & arts 57.5%
Service 12.6%
Sales & office 8.0%
Natural resources & construction 16.1%
Production & transportation 5.7%
Employment type
Type %
Private sector 76.4%
Government 17.2%
Self-employed 6.3%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 67.5%
Carpool 27.0%
Public transit 0.0%
Walk 1.2%
Work from home 0.0%
Other means 4.3%
Avg commute (minutes) 32.5
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 51.4%
Retirement income 60.6%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 4.9%
Health indicators
Condition %
Obesity 31.6%
High blood pressure 33.7%
High cholesterol 35.4%
Diabetes 10.2%
Heart disease 7.4%
Stroke 3.4%
Asthma 10.1%
Arthritis 26.7%
Kidney disease 3.2%
Pulmonary disease 8.0%
Cancer 7.5%
Behavior / access %
Smoking 19.1%
Binge drinking 16.8%
No physical activity 25.5%
Less than 7 hrs sleep 34.4%
Depression 21.1%
Fair or poor health 13.9%
Poor mental health 13.8%
Poor physical health 10.8%
No health insurance 11.4%
Visited doctor (checkup) 76.4%
Visited dentist 62.8%
Cholesterol screening 91.1%
Teeth loss 15.3%
Veterans & disability
Veterans Count %
Civilian veterans 39 14.0%
Disability %
Any disability 11.9%
Under 18 0.0%
18–64 years 0.0%
65 and over 31.6%
Health insurance coverage
Type %
Private insurance 70.6%
Public insurance 47.7%
No insurance 0.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 310 100.0%
Spanish 12 3.9%
Other Indo-European 0 0.0%
Asian & Pacific Islander 5 1.6%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 281 90.6%
Born in same state 281 90.6%
Born in different state 183 59.0%
Foreign born 0 0.0%
Naturalized citizen 29 9.4%
Not a US citizen 18 62.1%
Ancestry
Ancestry Count %
Italian 110 35.5%
French 47 15.2%
Arab 39 12.6%
Ancestry Count %
English 17 5.5%
Norwegian 7 2.3%
Polish 3 1%
Technology access
Metric % of households
Computer access 45.8%
Internet access 96.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 12743
What city is ZIP code 12743 in?
ZIP code 12743 is primarily assigned to Highland Lake, New York.
What county is ZIP code 12743 in?
ZIP code 12743 falls within Sullivan County, New York.
Does ZIP code 12743 have an older population?
38% of residents in ZIP code 12743 are 65 or older, above the national average of ~17%.
Is ZIP code 12743 mostly owner-occupied?
92% of occupied units in ZIP code 12743 are owner-occupied, well above the national average.
Does ZIP code 12743 have a large retiree population?
51% of households in ZIP code 12743 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 12743 have a large veteran population?
14% of civilians in ZIP code 12743 are veterans, above the national average of ~7%.
What timezone is ZIP code 12743 in?
ZIP code 12743 observes the EST timezone.
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