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New York ZIP Codes
Nassau County
Westbury, NY
11590
11590 ZIP Code — Westbury, NY
Nassau County, New York
ZIP code 11590 is located in
Westbury ,
New York ,
within Nassau County .
It covers approximately 6.70 square miles and serves a population of
47,951 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 516/631 .
About ZIP code 11590
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1950s, giving the area an established character. Median home value is $594,500. Owner-occupancy is high at 79%, well above the national average.
The gap between median ($133,349) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 6% is below the national average. 38% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 41% of residents holding a bachelor's degree or higher.
Overall, ZIP code 11590 reflects a community defined by high homeownership and a significant Social Security-dependent population.
11590 ZIP code map
View map of 11590
Cities in ZIP code 11590
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
47,951
Population density
7,157 / sq mi
State FIPS
36
County FIPS
059
Geography
Land area
6.70 sq mi
Water area
0.02 sq mi
Latitude
40.7565
Longitude
-73.5801
Timezone
Eastern (ET)
Area code
516/631
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
22.3%
20.1%
37.0%
$50k – $100k
21.0%
21.8%
27.0%
$100k – $200k
32.3%
33.1%
24.4%
Over $200k
24.5%
25.0%
11.5%
Demographics & statistics
$133,349
Median household income
$594,500
Median home value
$2,331
Median monthly rent
41.0%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 10,468 21.8%
18 and over 37,483 78.2%
65 and over 8,356 17.4%
Median age 40.4 years
Race & ethnicity
Black or African American
15%
Native Hawaiian / Pacific Islander
0.1%
Group Count %
White 20,158 33%
Hispanic or Latino 13,081 21.4%
Other race 9,917 16.2%
Black or African American 9,174 15%
Asian 4,728 7.7%
Two or more races 3,890 6.4%
Native Hawaiian / Pacific Islander 76 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
22.3%
20.1%
37.0%
$50k – $100k
21.0%
21.8%
27.0%
$100k – $200k
32.3%
33.1%
24.4%
Over $200k
24.5%
25.0%
11.5%
Range % of households
Under $10k 3.4%
$10k–$15k 1.3%
$15k–$25k 5.0%
$25k–$35k 3.4%
$35k–$50k 5.1%
$50k–$75k 9.0%
$75k–$100k 9.6%
$100k–$150k 19.7%
$150k–$200k 15.9%
$200k+ 27.5%
Median income $133,349
Housing
Housing overview
Metric Value
Median home value $594,500
Median rent / month $2,331
Owner occupied 78.7%
Renter occupied 21.3%
Vacant 3.4%
Single-family detached 70.9%
Large apartment buildings 8.1%
Mobile homes 0.2%
Median rooms 6.5
Avg household size (owned) 3.17
Year built
Era %
2020 or later 0.4%
2010–2019 5.6%
2000–2009 8.1%
1990–1999 3.7%
1980–1989 4.3%
1970–1979 4.8%
1960–1969 8.3%
1950–1959 43.6%
1940–1949 12.2%
1939 or earlier 9.0%
Bedrooms
Size % of units
No bedroom (studio) 1.4%
1 bedroom 7.9%
2 bedrooms 19.0%
3 bedrooms 34.0%
4 bedrooms 28.3%
5+ bedrooms 9.4%
Vehicles per household
Vehicles % of households
No vehicle 5.7%
1 vehicle 33.8%
2 vehicles 35.3%
3 or more 25.2%
Heating fuel
Fuel type %
Utility gas 45.9%
Electricity 9.4%
Propane / LP gas 3.7%
Fuel oil 38.8%
Wood 0.2%
Solar 0.9%
Households & families
Household type Count %
Married-couple family 8,518 57.7%
Cohabiting couple 731 5.0%
Male householder, no spouse 1,563 10.6%
Female householder, no spouse 3,954 26.8%
Households with children under 18 5,042 34.1%
Households with seniors (65+) 6,140 41.6%
Average household size 3.22
Marital status
Status Male Female
Never married 37.2% 35.5%
Married 54.6% 45.9%
Separated 0.4% 1.7%
Widowed 1.8% 9.7%
Divorced 6.0% 7.1%
Education
Some college, no degree
15.0%
Graduate / professional
15.9%
Metric %
HS diploma or higher 84.9%
Bachelor's or higher 41.0%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 745 6.9%
Kindergarten 483 4.5%
Elementary school 4,505 41.8%
High school 2,494 23.1%
College / grad school 2,557 23.7%
Employment
Industry of employment
Education & healthcare
27.8%
Professional & management
13.6%
Finance & real estate
8.9%
Arts, food & hospitality
7.9%
Transportation & utilities
6.9%
Public administration
3.5%
Agriculture & mining
0.1%
Occupation
Category %
Management, business & arts 39.8%
Service 19.4%
Sales & office 21.3%
Natural resources & construction 8.2%
Production & transportation 11.4%
Employment type
Type %
Private sector 82.6%
Government 13.0%
Self-employed 4.0%
Unpaid family workers 0.4%
Commute
Method %
Drive alone 66.0%
Carpool 11.2%
Public transit 9.8%
Walk 2.1%
Work from home 7.8%
Other means 3.1%
Avg commute (minutes) 31.1
Poverty
Married-couple families
2.7%
Female-led households
7.2%
Income support
Source % of households
Social Security 37.6%
Retirement income 30.3%
Supplemental Security 4.9%
Cash public assistance 2.1%
Food stamps / SNAP 5.4%
Health indicators
Condition %
Obesity 26.7%
High blood pressure 30.2%
High cholesterol 32.2%
Diabetes 9.0%
Heart disease 5.3%
Stroke 2.7%
Asthma 9.0%
Arthritis 19.4%
Kidney disease 2.7%
Pulmonary disease 5.0%
Cancer 6.1%
Behavior / access %
Smoking 12.8%
Binge drinking 14.2%
No physical activity 24.3%
Less than 7 hrs sleep 35.7%
Depression 14.7%
Fair or poor health 12.7%
Poor mental health 13.1%
Poor physical health 8.5%
No health insurance 16.7%
Visited doctor (checkup) 79.7%
Visited dentist 66.0%
Cholesterol screening 91.3%
Teeth loss 11.7%
Veterans & disability
Veterans Count %
Civilian veterans 1,125 3.0%
Disability %
Any disability 8.6%
Under 18 0.2%
18–64 years 5.8%
65 and over 28.6%
Health insurance coverage
Type %
Private insurance 73.1%
Public insurance 31.6%
No insurance 8.1%
Uninsured under 19 4.7%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 44,911 93.7%
Spanish 8,215 18.3%
Other Indo-European 5,715 12.7%
Asian & Pacific Islander 1,419 3.2%
Other languages 1,049 2.3%
Place of birth & citizenship
Origin Count %
Native born (US) 31,908 66.5%
Born in same state 30,637 63.9%
Born in different state 28,876 60.2%
Foreign born 1,271 2.7%
Naturalized citizen 16,043 33.5%
Not a US citizen 9,383 58.5%
Ancestry
Ancestry Count %
Italian 3,773 7.9%
Arab 1,542 3.2%
French 787 1.6%
Irish 136 0.3%
Polish 74 0.2%
Ancestry Count %
German 64 0.1%
Norwegian 52 0.1%
English 43 0.1%
Dutch 22 0%
Technology access
Metric % of households
Computer access 30.8%
Internet access 95.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 11590
What city is ZIP code 11590 in?
ZIP code 11590 is primarily assigned to Westbury, New York.
What county is ZIP code 11590 in?
ZIP code 11590 falls within Nassau County, New York.
Does ZIP code 11590 have a large retiree population?
38% of households in ZIP code 11590 receive Social Security income, suggesting a significant retiree or disability population.
What is the median household income in ZIP code 11590?
The median household income in ZIP code 11590 is $133,349, above the national median of ~$75,000.
What is the typical home value in ZIP code 11590?
The median home value in ZIP code 11590 is $594,500.
What is the population of ZIP code 11590?
ZIP code 11590 has an estimated population of 47,951 residents, with a density of 7,153 people per square mile.
What timezone is ZIP code 11590 in?
ZIP code 11590 observes the EST timezone.
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