Smithtown ZIP Code List — Suffolk County, NY

There is one unique ZIP code in Smithtown, New York and it is 11787. Area code: 631.

ZIP codes

14.90

sq mi land

0.67

sq mi water

631

area code

Smithtown, NY ZIP code map

About Smithtown, NY

Smithtown, NY, is a charming town located in Suffolk County on Long Island. Known for its vibrant community and picturesque landscapes, Smithtown offers a unique blend of suburban living and rural charm. The town is situated in a prime location, making it an ideal place for families and individuals seeking a peaceful yet connected lifestyle.

Location & geography

Smithtown covers a land area of 14.90 square miles, with an additional 0.67 square miles of water. It is positioned conveniently close to several cities, including Hauppauge, 4 miles to the southwest, Kings Park, 5 miles to the north, and Nesconset, just 3 miles to the south. The terrain of Smithtown features lush greenery, parks, and water bodies that enhance its natural beauty.

Community & economy

The character of Smithtown is defined by a strong community spirit and a welcoming atmosphere. With a focus on local businesses and family-oriented activities, the town supports various industries, including retail, healthcare, and education. Daily life in Smithtown includes enjoying local parks, participating in community events, and taking advantage of the town's recreational facilities.

Transportation

Smithtown is well-connected via several major highways, including Route 347 and Route 23, which provide easy access to neighboring areas. The nearest airport is Long Island MacArthur Airport, located approximately 15 miles to the east. Public transit options, including bus services, are also available for residents and visitors.

History

Smithtown was originally settled in the 17th century and was officially established in 1891. The town played a significant role in agriculture and farming, which were key industries for many years. Notable events in its history include the establishment of Smithtown's first public library in the late 19th century, reflecting the town's commitment to education and community resource development.

Did you know?

An interesting fact about Smithtown is that it was named after a local tavern called Smith's Tavern, which served travelers on their way to nearby regions. Additionally, the town is known for its unique mascot, the 'Smithtown Bull', which symbolizes the town's agricultural heritage.

ZIP codes for Smithtown, NY (1)

ZIP code	City	County	Map
11787	Smithtown	Suffolk	View map

Demographics & statistics

34,408

Population

46.9

Median age

$139,239

Median household income

$62,516

Per capita income

$622,000

Median home value

$2,293

Median monthly rent

87.3%

Home ownership

4.8%

Poverty rate

3.6%

Unemployment

10,536

Housing units

51.1%

Bachelor's or higher

Age distribution

Male Female

698

Under 5

712

802

5–9

817

1,030

10–14

1,050

1,366

15–19

1,393

1,179

20–24

1,202

1,471

25–34

1,500

1,580

35–44

1,611

2,763

45–54

2,816

1,563

55–59

1,594

1,285

60–64

1,310

1,548

65–74

1,577

1,048

75–84

1,068

706

85+

719

← Male

Female →

Age summary

Group	Count	%
Under 18	6,945	20.2%
18 and over	27,463	79.8%
65 and over	6,666	19.4%
Median age	46.9 years

Race & ethnicity

White 83.6%

Two or more races 5.3%

Asian 4.9%

Hispanic or Latino 4.2%

Other race 1.1%

Black or African American 0.9%

American Indian / Alaska Native 0.1%

Group	Count	%
White	30,022	83.6%
Two or more races	1,898	5.3%
Asian	1,754	4.9%
Hispanic or Latino	1,521	4.2%
Other race	400	1.1%
Black or African American	312	0.9%
American Indian / Alaska Native	22	0.1%

Household income

Under $10k 4.0%

$10k–$15k 2.0%

$15k–$25k 2.8%

$25k–$35k 2.6%

$35k–$50k 4.5%

$50k–$75k 7.6%

$75k–$100k 9.8%

$100k–$150k 20.7%

$150k–$200k 14.0%

$200k+ 31.9%

Range	% of households
Under $10k	4.0%
$10k–$15k	2.0%
$15k–$25k	2.8%
$25k–$35k	2.6%
$35k–$50k	4.5%
$50k–$75k	7.6%
$75k–$100k	9.8%
$100k–$150k	20.7%
$150k–$200k	14.0%
$200k+	31.9%
Median income	$139,239

Housing

Home values

Under $50k 0.8%

$50k–$100k 1.2%

$100k–$150k 0.2%

$150k–$200k 0.7%

$200k–$300k 0.8%

$300k–$500k 16.7%

$500k–$1M 75.3%

$1M+ 4.3%

Housing overview

Metric	Value
Median home value	$622,000
Median rent / month	$2,293
Owner occupied	87.3%
Renter occupied	12.7%
Vacant	2.0%
Single-family detached	84.1%
Large apartment buildings	2.6%
Mobile homes	0.7%
Median rooms	7.3
Avg household size (owned)	2.98

Year built

Era	%
2020 or later	0.1%
2010–2019	2.5%
2000–2009	6.9%
1990–1999	6.9%
1980–1989	8.1%
1970–1979	12.7%
1960–1969	37.1%
1950–1959	18.8%
1940–1949	2.6%
1939 or earlier	4.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	7.6%
2 bedrooms	10.2%
3 bedrooms	38.2%
4 bedrooms	36.7%
5+ bedrooms	6.7%

Vehicles per household

Vehicles	% of households
No vehicle	5.3%
1 vehicle	22.3%
2 vehicles	41.9%
3 or more	30.5%

Heating fuel

Fuel type	%
Utility gas	44.3%
Electricity	4.9%
Propane / LP gas	1.5%
Fuel oil	47.2%
Wood	0.1%
Solar	0.1%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	7,530	63.8%
Cohabiting couple	574	4.9%
Male householder, no spouse	1,277	10.8%
Female householder, no spouse	2,423	20.5%
Households with children under 18	3,690	31.3%
Households with seniors (65+)	4,218	35.7%
Average household size	2.85

Marital status

Status	Male	Female
Never married	34.2%	27.6%
Married	56.9%	53.7%
Separated	0.6%	1.0%
Widowed	3.5%	9.4%
Divorced	4.9%	8.3%

Education

Less than 9th grade 2.4%

Some HS, no diploma 2.2%

HS graduate 19.9%

Some college, no degree 14.4%

Associate's degree 10.0%

Bachelor's degree 27.9%

Graduate / professional 23.2%

Metric	%
HS diploma or higher	95.3%
Bachelor's or higher	51.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	456	5.5%
Kindergarten	291	3.5%
Elementary school	2,947	35.4%
High school	2,342	28.1%
College / grad school	2,300	27.6%

Employment

Industry of employment

Education & healthcare 30.1%

Retail trade 13.5%

Professional & management 13.1%

Finance & real estate 7.9%

Construction 6.4%

Manufacturing 6.2%

Public administration 5.7%

Arts, food & hospitality 5.2%

Other services 3.7%

Transportation & utilities 2.9%

Information 2.7%

Wholesale trade 2.5%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	52.4%
Service	13.8%
Sales & office	24.4%
Natural resources & construction	4.9%
Production & transportation	4.5%

Employment type

Type	%
Private sector	74.0%
Government	23.0%
Self-employed	2.9%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	78.1%
Carpool	3.7%
Public transit	4.1%
Walk	0.4%
Other means	0.4%
Avg commute (minutes)	32.4

Poverty

All people 4.8%

Under 18 years 3.2%

18 and over 5.2%

Married-couple families 1.8%

Female-led households 10.2%

Income support

Source	% of households
Social Security	36.6%
Retirement income	32.2%
Supplemental Security	5.5%
Cash public assistance	2.1%
Food stamps / SNAP	4.5%

Health indicators

Condition	%
High blood pressure	28.0%
High cholesterol	31.3%
Heart disease	5.3%
Stroke	2.3%
Asthma	9.0%
Arthritis	20.2%
Kidney disease	2.5%
Pulmonary disease	4.9%
Cancer	7.5%

Behavior / access	%
Binge drinking	17.8%
No physical activity	18.4%
Less than 7 hrs sleep	31.6%
Fair or poor health	8.6%
Poor mental health	11.8%
Poor physical health	7.5%
No health insurance	7.6%
Visited doctor (checkup)	79.3%
Visited dentist	74.7%
Cholesterol screening	93.8%
Teeth loss	8.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,795	6.5%

Disability	%
Any disability	10.3%
Under 18	2.9%
18–64 years	7.4%
65 and over	28.3%

Health insurance coverage

Type	%
Private insurance	85.2%
Public insurance	27.2%
Uninsured under 19	0.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	32,998	95.9%
Spanish	852	2.6%
Other Indo-European	314	1.0%
Asian & Pacific Islander	438	1.3%
Other languages	88	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	31,612	91.9%
Born in same state	31,320	91.0%
Born in different state	29,247	85.0%
Foreign born	292	0.8%
Naturalized citizen	2,796	8.1%
Not a US citizen	2,168	77.5%

Ancestry

Ancestry	Count	%
Italian	6,330	18.4%
Arab	3,632	10.6%
French	1,617	4.7%
Polish	294	0.9%
Irish	229	0.7%

Ancestry	Count	%
Norwegian	179	0.5%
English	100	0.3%
German	25	0.1%
Dutch	6	0%

Technology access

Metric	% of households
Computer access	34.3%
Internet access	95.7%

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

Frequently asked questions

What is the ZIP code for Smithtown, NY?

Smithtown, NY has one ZIP code: 11787.

What is the main ZIP code for Smithtown, NY?

The primary ZIP code for Smithtown, NY is 11787. The city uses area code 631 for phone service.

What county is Smithtown, NY in?

Smithtown is located in Suffolk County, New York.

How many ZIP codes are in Smithtown, NY?

Smithtown, NY has 1 ZIP code.

What ZIP code covers the Smithtown downtown area and the Smithtown library?

The Smithtown downtown area, including the Smithtown Library on Route 25, is located in ZIP code 11787.

What ZIP code should I use for mailing to businesses along Route 347 in Smithtown?

Addresses along Route 347 in Smithtown, including local businesses and commercial areas, use the ZIP code 11787.