East Northport ZIP Code List — Suffolk County, NY

There is one unique ZIP code in East Northport, New York and it is 11731. Area code: 631.

ZIP codes

8.32

sq mi land

0.00

sq mi water

631

area code

East Northport, NY ZIP code map

About East Northport, NY

East Northport is a charming hamlet located within the boundaries of Suffolk County, New York. This quaint community offers a blend of suburban tranquility and local amenities, making it a desirable place to live. Characterized by its friendly atmosphere and well-maintained neighborhoods, East Northport is a hidden gem on Long Island.

Location & geography

Geographically, East Northport covers a total land area of 8.32 square miles, with no water area to speak of. The hamlet is situated approximately 5 miles southwest of Huntington and around 7 miles northwest of Smithtown, offering easy access to nearby urban centers. The terrain is predominantly flat, providing a picturesque suburban landscape.

Community & economy

The community of East Northport is known for its strong sense of togetherness and active local organizations. In terms of industries, the area features a mix of retail, professional services, and small businesses, contributing to a vibrant and diverse local economy. Daily life in East Northport is characterized by family-oriented events, recreational activities, and a focus on community involvement.

Transportation

Transportation in East Northport is conveniently facilitated by several major highways, including the Long Island Expressway (I-495) and NY Route 25. The nearest airport is MacArthur Airport, located about 15 miles to the east, providing residents with access to domestic and limited international flights. Public transportation options include bus services that connect to nearby train stations for travel across Long Island.

History

East Northport was developed in the early 19th century, primarily as a farming community before evolving into a suburban area. Key industries historically included agriculture and local retail, which fueled the area's growth. Notable events in its history include the establishment of local schools and parks that have shaped the community's development over time.

Did you know?

One surprising fact about East Northport is its proximity to the famed Oheka Castle, a historic mansion and now a hotel that draws visitors for its grandeur and scenic beauty. Additionally, the hamlet offers easy access to Northport Village, known for its charming waterfront and vibrant arts scene.

ZIP codes for East Northport, NY (1)

ZIP code	City	County	Map
11731	East Northport	Suffolk	View map

Demographics & statistics

30,714

Population

45.7

Median age

$151,291

Median household income

$63,062

Per capita income

$603,200

Median home value

$2,084

Median monthly rent

91.3%

Home ownership

4.2%

Poverty rate

3.5%

Unemployment

10,155

Housing units

49.7%

Bachelor's or higher

Age distribution

Male Female

953

Under 5

955

949

5–9

951

806

10–14

808

865

15–19

868

1,034

20–24

1,038

1,399

25–34

1,404

1,549

35–44

1,554

2,267

45–54

2,273

1,393

55–59

1,397

1,541

60–64

1,545

1,363

65–74

1,368

811

75–84

813

404

85+

406

← Male

Female →

Age summary

Group	Count	%
Under 18	6,571	21.4%
18 and over	24,143	78.6%
65 and over	5,165	16.8%
Median age	45.7 years

Race & ethnicity

White 80.5%

Two or more races 5.6%

Hispanic or Latino 5.4%

Asian 4.3%

Other race 2.1%

Black or African American 2.1%

Group	Count	%
White	26,147	80.5%
Two or more races	1,805	5.6%
Hispanic or Latino	1,770	5.4%
Asian	1,397	4.3%
Other race	684	2.1%
Black or African American	681	2.1%

Household income

Under $10k 2.3%

$10k–$15k 1.3%

$15k–$25k 2.3%

$25k–$35k 2.6%

$35k–$50k 3.1%

$50k–$75k 11.2%

$75k–$100k 7.7%

$100k–$150k 18.7%

$150k–$200k 21.1%

$200k+ 29.8%

Range	% of households
Under $10k	2.3%
$10k–$15k	1.3%
$15k–$25k	2.3%
$25k–$35k	2.6%
$35k–$50k	3.1%
$50k–$75k	11.2%
$75k–$100k	7.7%
$100k–$150k	18.7%
$150k–$200k	21.1%
$200k+	29.8%
Median income	$151,291

Housing

Home values

Under $50k 0.4%

$50k–$100k 1.5%

$100k–$150k 0.5%

$200k–$300k 1.0%

$300k–$500k 22.9%

$500k–$1M 70.5%

$1M+ 3.1%

Housing overview

Metric	Value
Median home value	$603,200
Median rent / month	$2,084
Owner occupied	91.3%
Renter occupied	8.7%
Vacant	3.7%
Single-family detached	91.5%
Large apartment buildings	1.2%
Mobile homes	0.1%
Median rooms	7.2
Avg household size (owned)	2.93

Year built

Era	%
2020 or later	0.6%
2010–2019	2.3%
2000–2009	1.7%
1990–1999	2.8%
1980–1989	2.5%
1970–1979	7.5%
1960–1969	37.1%
1950–1959	31.0%
1940–1949	5.4%
1939 or earlier	9.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	3.5%
2 bedrooms	10.0%
3 bedrooms	37.9%
4 bedrooms	34.4%
5+ bedrooms	14.1%

Vehicles per household

Vehicles	% of households
No vehicle	3.1%
1 vehicle	24.3%
2 vehicles	40.2%
3 or more	32.3%

Heating fuel

Fuel type	%
Utility gas	56.1%
Electricity	4.7%
Propane / LP gas	1.3%
Fuel oil	36.9%
Wood	0.5%

Households & families

Household type	Count	%
Married-couple family	6,671	62.5%
Cohabiting couple	278	2.6%
Male householder, no spouse	1,448	13.6%
Female householder, no spouse	2,277	21.3%
Households with children under 18	3,481	32.6%
Households with seniors (65+)	3,727	34.9%
Average household size	2.85

Marital status

Status	Male	Female
Never married	32.3%	26.5%
Married	57.4%	52.6%
Separated	0.5%	0.7%
Widowed	3.3%	9.3%
Divorced	6.6%	11.0%

Education

Less than 9th grade 1.7%

Some HS, no diploma 2.0%

HS graduate 20.4%

Some college, no degree 16.9%

Associate's degree 9.2%

Bachelor's degree 26.5%

Graduate / professional 23.2%

Metric	%
HS diploma or higher	96.3%
Bachelor's or higher	49.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	774	10.8%
Kindergarten	281	3.9%
Elementary school	2,773	38.6%
High school	1,538	21.4%
College / grad school	1,816	25.3%

Employment

Industry of employment

Education & healthcare 31.6%

Professional & management 11.6%

Finance & real estate 11.3%

Construction 8.7%

Retail trade 8.5%

Public administration 6.0%

Arts, food & hospitality 5.6%

Manufacturing 4.7%

Information 3.6%

Transportation & utilities 2.9%

Other services 2.9%

Wholesale trade 2.6%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	54.0%
Service	14.1%
Sales & office	20.7%
Natural resources & construction	6.5%
Production & transportation	4.8%

Employment type

Type	%
Private sector	75.8%
Government	20.7%
Self-employed	3.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.5%
Carpool	6.2%
Public transit	7.9%
Walk	0.9%
Other means	0.2%
Avg commute (minutes)	36.3

Poverty

All people 4.2%

Under 18 years 4.5%

18 and over 4.1%

Married-couple families 0.8%

Female-led households 12.7%

Income support

Source	% of households
Social Security	35.0%
Retirement income	31.6%
Supplemental Security	2.2%
Cash public assistance	1.5%
Food stamps / SNAP	3.5%

Health indicators

Condition	%
High blood pressure	27.8%
High cholesterol	30.9%
Heart disease	5.2%
Stroke	2.3%
Asthma	9.0%
Arthritis	19.7%
Kidney disease	2.4%
Pulmonary disease	4.9%
Cancer	7.1%

Behavior / access	%
Binge drinking	18.0%
No physical activity	19.0%
Less than 7 hrs sleep	32.5%
Fair or poor health	8.9%
Poor mental health	12.1%
Poor physical health	7.7%
No health insurance	8.1%
Visited doctor (checkup)	78.9%
Visited dentist	73.3%
Cholesterol screening	93.4%
Teeth loss	8.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,281	5.3%

Disability	%
Any disability	10.4%
Under 18	4.0%
18–64 years	9.2%
65 and over	22.7%

Health insurance coverage

Type	%
Private insurance	86.4%
Public insurance	24.8%
Uninsured under 19	1.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	28,806	93.8%
Spanish	810	2.8%
Other Indo-European	402	1.4%
Asian & Pacific Islander	113	0.4%
Other languages	295	1.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	27,926	90.9%
Born in same state	27,629	90.0%
Born in different state	25,522	83.1%
Foreign born	297	1.0%
Naturalized citizen	2,788	9.1%
Not a US citizen	2,153	77.2%

Ancestry

Ancestry	Count	%
Italian	6,862	22.3%
Arab	1,778	5.8%
French	1,655	5.4%
Polish	411	1.3%
Irish	191	0.6%

Ancestry	Count	%
Dutch	170	0.6%
English	116	0.4%
Norwegian	109	0.4%
German	34	0.1%

Technology access

Metric	% of households
Computer access	34.8%
Internet access	97.6%

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

Frequently asked questions

What is the ZIP code for East Northport, NY?

East Northport, NY has one ZIP code: 11731.

What is the main ZIP code for East Northport, NY?

The primary ZIP code for East Northport, NY is 11731. The city uses area code 631 for phone service.

What county is East Northport, NY in?

East Northport is located in Suffolk County, New York.

How many ZIP codes are in East Northport, NY?

East Northport, NY has 1 ZIP code.

What is the ZIP code for the Northport Village area in East Northport, NY?

The Northport Village area in East Northport is located in ZIP code 11731, which serves the entire East Northport community in Suffolk County.

What ZIP code should I use when mailing something to a business in downtown East Northport near Main Street?

Businesses and residences in downtown East Northport near Main Street use ZIP code 11731, which is the sole ZIP code that covers all of East Northport.