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New York ZIP Codes
Rensselaer County
Poestenkill, NY
12140
12140 ZIP Code — Poestenkill, NY
Rensselaer County, New York
ZIP code 12140 is located in
Poestenkill ,
New York ,
within Rensselaer County .
It covers approximately 7.15 square miles and serves a population of
1,412 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 518 .
About ZIP code 12140
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 $287,100. Owner-occupancy is high at 83%, well above the national average.
Median household income is $93,750.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 21 minutes is near the national average.
Educational attainment is near the national average, with 40% of residents holding a bachelor's degree or higher.
12140 ZIP code map
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Cities in ZIP code 12140
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
1,412
Population density
197 / sq mi
State FIPS
36
County FIPS
083
Geography
Land area
7.15 sq mi
Water area
0.02 sq mi
Latitude
42.6879
Longitude
-73.5709
Timezone
Eastern (ET)
Area code
518
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
30.0%
35.2%
37.0%
$50k – $100k
19.3%
31.4%
27.0%
$100k – $200k
39.0%
27.6%
24.4%
Over $200k
11.6%
5.8%
11.5%
Demographics & statistics
$93,750
Median household income
$287,100
Median home value
40.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 215 15.2%
18 and over 1,197 84.8%
65 and over 228 16.1%
Median age 50.7 years
Race & ethnicity
Group Count %
White 1,359 96.2%
Two or more races 30 2.1%
Asian 23 1.6%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
30.0%
35.2%
37.0%
$50k – $100k
19.3%
31.4%
27.0%
$100k – $200k
39.0%
27.6%
24.4%
Over $200k
11.6%
5.8%
11.5%
Range % of households
Under $10k 3.6%
$10k–$15k 3.1%
$15k–$25k 1.0%
$25k–$35k 1.2%
$35k–$50k 13.4%
$50k–$75k 10.5%
$75k–$100k 18.3%
$100k–$150k 20.2%
$150k–$200k 12.2%
$200k+ 16.4%
Median income $93,750
Housing
Housing overview
Metric Value
Median home value $287,100
Median rent / month $797
Owner occupied 82.6%
Renter occupied 17.4%
Vacant 4.3%
Single-family detached 84.0%
Large apartment buildings 0.0%
Mobile homes 1.0%
Median rooms 6.4
Avg household size (owned) 2.53
Year built
Era %
2020 or later 0.0%
2010–2019 4.3%
2000–2009 19.6%
1990–1999 9.6%
1980–1989 4.1%
1970–1979 4.0%
1960–1969 13.9%
1950–1959 8.7%
1940–1949 6.3%
1939 or earlier 29.5%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 7.1%
2 bedrooms 24.9%
3 bedrooms 34.0%
4 bedrooms 32.8%
5+ bedrooms 1.2%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 24.5%
2 vehicles 50.0%
3 or more 25.5%
Heating fuel
Fuel type %
Utility gas 6.2%
Electricity 4.8%
Propane / LP gas 32.8%
Fuel oil 50.7%
Wood 4.0%
Households & families
Household type Count %
Married-couple family 332 57.2%
Cohabiting couple 31 5.3%
Male householder, no spouse 23 4.0%
Female householder, no spouse 194 33.4%
Households with children under 18 124 21.4%
Households with seniors (65+) 155 26.7%
Average household size 2.42
Marital status
Status Male Female
Never married 34.8% 26.3%
Married 63.5% 50.7%
Separated 0.0% 1.6%
Widowed 0.0% 11.4%
Divorced 1.8% 10.0%
Education
Some college, no degree
14.4%
Graduate / professional
14.8%
Metric %
HS diploma or higher 97.6%
Bachelor's or higher 40.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 37 13.5%
Kindergarten 10 3.6%
Elementary school 59 21.5%
High school 50 18.2%
College / grad school 118 43.1%
Employment
Industry of employment
Education & healthcare
37.5%
Public administration
12.8%
Professional & management
8.2%
Finance & real estate
5.9%
Transportation & utilities
5.3%
Arts, food & hospitality
4.2%
Agriculture & mining
0.9%
Occupation
Category %
Management, business & arts 50.8%
Service 7.1%
Sales & office 21.9%
Natural resources & construction 8.4%
Production & transportation 11.8%
Employment type
Type %
Private sector 68.4%
Government 27.9%
Self-employed 3.7%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 71.7%
Carpool 5.8%
Public transit 0.0%
Walk 4.3%
Work from home 18.2%
Other means 0.0%
Avg commute (minutes) 20.5
Poverty
Married-couple families
0.0%
Female-led households
30.0%
Income support
Source % of households
Social Security 27.4%
Retirement income 27.4%
Supplemental Security 1.6%
Cash public assistance 0.0%
Food stamps / SNAP 2.1%
Health indicators
Condition %
Obesity 25.2%
High blood pressure 28.0%
High cholesterol 31.6%
Diabetes 7.6%
Heart disease 5.3%
Stroke 2.3%
Asthma 9.8%
Arthritis 22.4%
Kidney disease 2.4%
Pulmonary disease 5.5%
Cancer 7.0%
Behavior / access %
Smoking 14.9%
Binge drinking 20.7%
No physical activity 19.3%
Less than 7 hrs sleep 33.6%
Depression 21.4%
Fair or poor health 9.1%
Poor mental health 13.3%
Poor physical health 8.1%
No health insurance 8.2%
Visited doctor (checkup) 79.2%
Visited dentist 71.8%
Cholesterol screening 92.7%
Teeth loss 10.0%
Veterans & disability
Veterans Count %
Civilian veterans 72 6.0%
Disability %
Any disability 12.5%
Under 18 9.3%
18–64 years 5.5%
65 and over 45.6%
Health insurance coverage
Type %
Private insurance 88.7%
Public insurance 24.9%
No insurance 3.5%
Uninsured under 19 3.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 1,315 93.1%
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) 1,371 97.1%
Born in same state 1,357 96.1%
Born in different state 1,152 81.6%
Foreign born 14 1.0%
Naturalized citizen 41 2.9%
Not a US citizen 31 75.6%
Ancestry
Ancestry Count %
Italian 369 26.1%
French 232 16.4%
English 97 6.9%
German 49 3.5%
Ancestry Count %
Arab 47 3.3%
Polish 30 2.1%
Irish 7 0.5%
Norwegian 7 0.5%
Technology access
Metric % of households
Computer access 41.1%
Internet access 92.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 12140
What city is ZIP code 12140 in?
ZIP code 12140 is primarily assigned to Poestenkill, New York.
What county is ZIP code 12140 in?
ZIP code 12140 falls within Rensselaer County, New York.
Is ZIP code 12140 mostly owner-occupied?
83% of occupied units in ZIP code 12140 are owner-occupied, well above the national average.
What is the population of ZIP code 12140?
ZIP code 12140 has an estimated population of 1,412 residents, with a density of 197 people per square mile.
What is the median household income in ZIP code 12140?
The median household income in ZIP code 12140 is $93,750, above the national median of ~$75,000.
What is the typical home value in ZIP code 12140?
The median home value in ZIP code 12140 is $287,100.
What timezone is ZIP code 12140 in?
ZIP code 12140 observes the EST timezone.
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