Syosset ZIP Code List — Nassau County, NY

There is one unique ZIP code in Syosset, New York and it is 11791. Area code: 516.

ZIP codes

12.51

sq mi land

0.28

sq mi water

516

area code

Syosset, NY ZIP code map

About Syosset, NY

Syosset is a charming hamlet located in Nassau County, New York. Known for its suburban feel, Syosset offers a blend of residential tranquility and access to urban amenities. The community is characterized by friendly neighborhoods and a strong sense of local pride.

Location & geography

Syosset is situated on Long Island and encompasses a total land area of 12.51 square miles, complemented by a water area of 0.28 square miles. It is conveniently located approximately 5 miles from the bustling city of Jericho to the west and about 8 miles from the scenic Oyster Bay to the east. The terrain showcases a mix of residential developments, parks, and local commercial areas.

Community & economy

The community of Syosset is known for its family-oriented atmosphere, where residents often engage in local events and activities. Its economy is bolstered by a variety of industries, including retail, education, and healthcare, providing a balanced local job market. Daily life in Syosset is characterized by involvement in local schools, recreational facilities, and community organizations, fostering a strong sense of belonging.

Transportation

Syosset is well-connected through major highways, including the Long Island Expressway (I-495) and the Northern State Parkway, making commutes to other parts of Long Island and New York City convenient. The Long Island Rail Road (LIRR) provides transit options with a direct station in Syosset, linking residents to Manhattan and nearby regions. The closest major airport is John F. Kennedy International Airport, located about 20 miles to the west.

History

Syosset was founded in the 19th century and has since grown from a rural community into a vibrant suburban district. Key industries in its early development included agriculture and trade, which laid the groundwork for its current economic diversity. Notable events in Syosset's history include the establishment of the Syosset School District, which is known for its quality education.

Did you know?

A little-known fact about Syosset is that it is home to the historical Syosset-Plainview Library, which has served the community since its establishment. Additionally, the hamlet is recognized for its proximity to the famed Old Westbury Gardens, a popular destination for locals and visitors alike.

ZIP codes for Syosset, NY (1)

ZIP code	City	County	Map
11791	Syosset	Nassau	View map

Demographics & statistics

25,631

Population

43.2

Median age

$190,347

Median household income

$82,825

Per capita income

$877,400

Median home value

$2,540

Median monthly rent

92.9%

Home ownership

4.5%

Poverty rate

5.0%

Unemployment

7,803

Housing units

69.2%

Bachelor's or higher

Age distribution

Male Female

532

Under 5

531

1,116

5–9

1,112

1,178

10–14

1,174

958

15–19

956

533

20–24

532

935

25–34

933

1,490

35–44

1,485

2,381

45–54

2,374

792

55–59

790

880

60–64

878

1,352

65–74

1,347

458

75–84

457

229

85+

228

← Male

Female →

Age summary

Group	Count	%
Under 18	7,182	28.0%
18 and over	18,449	72.0%
65 and over	4,071	15.9%
Median age	43.2 years

Race & ethnicity

White 58.6%

Asian 30.4%

Hispanic or Latino 4.2%

Two or more races 3.1%

Other race 2.1%

Black or African American 1.3%

American Indian / Alaska Native 0.3%

Group	Count	%
White	15,678	58.6%
Asian	8,143	30.4%
Hispanic or Latino	1,123	4.2%
Two or more races	837	3.1%
Other race	561	2.1%
Black or African American	336	1.3%
American Indian / Alaska Native	76	0.3%

Household income

Under $10k 3.3%

$10k–$15k 1.9%

$15k–$25k 2.5%

$25k–$35k 3.1%

$35k–$50k 2.9%

$50k–$75k 5.9%

$75k–$100k 8.1%

$100k–$150k 13.3%

$150k–$200k 11.2%

$200k+ 47.9%

Range	% of households
Under $10k	3.3%
$10k–$15k	1.9%
$15k–$25k	2.5%
$25k–$35k	3.1%
$35k–$50k	2.9%
$50k–$75k	5.9%
$75k–$100k	8.1%
$100k–$150k	13.3%
$150k–$200k	11.2%
$200k+	47.9%
Median income	$190,347

Housing

Home values

Under $50k 0.4%

$50k–$100k 0.2%

$100k–$150k 0.2%

$150k–$200k 0.1%

$200k–$300k 0.1%

$300k–$500k 5.2%

$500k–$1M 60.0%

$1M+ 33.8%

Housing overview

Metric	Value
Median home value	$877,400
Median rent / month	$2,540
Owner occupied	92.9%
Renter occupied	7.1%
Vacant	3.2%
Single-family detached	91.6%
Large apartment buildings	0.6%
Mobile homes	0.1%
Median rooms	7.3
Avg household size (owned)	3.16

Year built

Era	%
2020 or later	0.1%
2010–2019	3.2%
2000–2009	3.6%
1990–1999	2.3%
1980–1989	8.9%
1970–1979	8.9%
1960–1969	15.0%
1950–1959	50.7%
1940–1949	2.9%
1939 or earlier	4.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.8%
1 bedroom	1.6%
2 bedrooms	3.6%
3 bedrooms	41.1%
4 bedrooms	35.8%
5+ bedrooms	16.0%

Vehicles per household

Vehicles	% of households
No vehicle	2.1%
1 vehicle	23.9%
2 vehicles	47.2%
3 or more	26.8%

Heating fuel

Fuel type	%
Utility gas	48.2%
Electricity	6.7%
Propane / LP gas	2.3%
Fuel oil	42.5%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	6,358	78.4%
Cohabiting couple	145	1.8%
Male householder, no spouse	658	8.1%
Female householder, no spouse	949	11.7%
Households with children under 18	3,844	47.4%
Households with seniors (65+)	2,733	33.7%
Average household size	3.13

Marital status

Status	Male	Female
Never married	25.8%	22.9%
Married	70.0%	65.3%
Separated	0.2%	1.0%
Widowed	1.0%	6.2%
Divorced	3.0%	4.6%

Education

Less than 9th grade 1.9%

Some HS, no diploma 1.9%

HS graduate 11.5%

Some college, no degree 9.2%

Associate's degree 6.3%

Bachelor's degree 33.9%

Graduate / professional 35.3%

Metric	%
HS diploma or higher	96.2%
Bachelor's or higher	69.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	444	6.0%
Kindergarten	390	5.2%
Elementary school	3,510	47.1%
High school	2,055	27.6%
College / grad school	1,050	14.1%

Employment

Industry of employment

Education & healthcare 29.3%

Professional & management 17.0%

Finance & real estate 14.3%

Retail trade 8.3%

Arts, food & hospitality 5.7%

Manufacturing 4.4%

Transportation & utilities 4.1%

Wholesale trade 4.0%

Construction 3.3%

Information 3.1%

Other services 3.1%

Public administration 2.8%

Agriculture & mining 0.4%

Occupation

Category	%
Management, business & arts	63.1%
Service	8.2%
Sales & office	20.7%
Natural resources & construction	3.0%
Production & transportation	5.1%

Employment type

Type	%
Private sector	83.5%
Government	11.3%
Self-employed	4.8%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	57.2%
Carpool	6.3%
Public transit	13.7%
Walk	1.1%
Other means	1.4%
Avg commute (minutes)	39.0

Poverty

All people 4.5%

Under 18 years 3.7%

18 and over 4.8%

Married-couple families 3.1%

Female-led households 23.2%

Income support

Source	% of households
Social Security	28.6%
Retirement income	22.7%
Supplemental Security	3.2%
Cash public assistance	1.4%
Food stamps / SNAP	3.5%

Health indicators

Condition	%
High blood pressure	27.9%
High cholesterol	35.3%
Heart disease	4.9%
Stroke	2.1%
Asthma	7.6%
Arthritis	19.2%
Kidney disease	2.3%
Pulmonary disease	4.0%
Cancer	7.1%

Behavior / access	%
Binge drinking	13.6%
No physical activity	16.8%
Less than 7 hrs sleep	31.1%
Fair or poor health	7.5%
Poor mental health	10.3%
Poor physical health	6.4%
No health insurance	7.1%
Visited doctor (checkup)	80.7%
Visited dentist	77.0%
Cholesterol screening	94.5%
Teeth loss	6.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	452	2.4%

Disability	%
Any disability	6.1%
Under 18	1.8%
18–64 years	4.5%
65 and over	19.2%

Health insurance coverage

Type	%
Private insurance	86.2%
Public insurance	23.8%
Uninsured under 19	1.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	24,568	95.9%
Spanish	2,453	10.0%
Other Indo-European	247	1.0%
Asian & Pacific Islander	417	1.7%
Other languages	1,759	7.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	19,284	75.2%
Born in same state	19,027	74.2%
Born in different state	17,317	67.6%
Foreign born	257	1.0%
Naturalized citizen	6,347	24.8%
Not a US citizen	4,872	76.8%

Ancestry

Ancestry	Count	%
Italian	2,051	8%
Arab	832	3.2%
French	546	2.1%
Irish	250	1%
Norwegian	66	0.3%

Ancestry	Count	%
German	60	0.2%
English	35	0.1%
Dutch	16	0.1%
Polish	10	0%

Technology access

Metric	% of households
Computer access	31.6%
Internet access	97.6%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Syosset, NY?

Syosset, NY has one ZIP code: 11791.

What is the main ZIP code for Syosset, NY?

The primary ZIP code for Syosset, NY is 11791. The city uses area code 516 for phone service.

What county is Syosset, NY in?

Syosset is located in Nassau County, New York.

How many ZIP codes are in Syosset, NY?

Syosset, NY has 1 ZIP code.

What ZIP code should I use when mailing something to a business in downtown Syosset near the Long Island Rail Road station?

Downtown Syosset and the LIRR station area are located in ZIP code 11791, which covers the central business district of the city.

What is the ZIP code for the Syosset High School area and the surrounding residential neighborhoods?

Syosset High School and the surrounding residential neighborhoods are all within ZIP code 11791, which encompasses the entire Syosset area.