Saint James ZIP Code List — Suffolk County, NY

There is one unique ZIP code in Saint James, New York and it is 11780. Area code: 631.

ZIP codes

11.50

sq mi land

3.95

sq mi water

631

area code

Saint James, NY ZIP code map

About Saint James, NY

Saint James, NY, is a charming community located in Suffolk County. Known for its small-town feel, Saint James is a desirable place to live and visit, featuring beautiful parks and a variety of local businesses. The town offers a serene environment while providing access to the vibrant culture of Long Island.

Location & geography

Saint James is situated on Long Island in Suffolk County, New York. It is approximately 50 miles east of Manhattan, making it a feasible suburb for city commuters, and is bordered by cities such as Smithtown to the southwest, Lake Grove to the southeast, and Port Jefferson to the northeast. The town comprises 11.50 square miles of land and includes 3.95 square miles of water, featuring a mix of residential and natural landscapes.

Community & economy

The character of Saint James is defined by its close-knit community and emphasis on family-oriented living. The local economy is supported by small businesses, retail shops, and various industries, promoting a sense of local pride. Daily life in Saint James is often enhanced by community events, recreational activities, and the picturesque settings of nearby parks.

Transportation

Saint James is conveniently located near major highways, including the Long Island Expressway (I-495) and Route 347, providing easy access to surrounding areas. The nearest airport is Long Island MacArthur Airport, located about 25 miles to the west. Public transit options include local bus services that connect to larger transit networks.

History

Saint James was originally established as a small agricultural community in the 19th century, and it has grown significantly over the years. The town's early industries included farming and shipping, and it gradually developed into a suburban neighborhood, attracting families seeking a quieter lifestyle. Notable events in the area include the establishment of local schools and parks that have shaped the community's character.

Did you know?

One little-known fact about Saint James is that it was once home to a rich agricultural background, which has paved the way for its modern suburban development. Additionally, Saint James hosts several yearly community events that foster a strong sense of local tradition and camaraderie.

ZIP codes for Saint James, NY (1)

ZIP code	City	County	Map
11780	Saint James	Suffolk	View map

Demographics & statistics

15,617

Population

46.3

Median age

$151,971

Median household income

$72,669

Per capita income

$659,900

Median home value

$2,198

Median monthly rent

89.0%

Home ownership

2.1%

Poverty rate

4.3%

Unemployment

5,198

Housing units

53.6%

Bachelor's or higher

Age distribution

Male Female

266

Under 5

283

368

5–9

390

523

10–14

556

578

15–19

613

495

20–24

525

748

25–34

795

720

35–44

765

1,125

45–54

1,195

636

55–59

676

554

60–64

589

800

65–74

849

468

75–84

497

292

85+

311

← Male

Female →

Age summary

Group	Count	%
Under 18	3,117	20.0%
18 and over	12,500	80.0%
65 and over	3,217	20.6%
Median age	46.3 years

Race & ethnicity

White 81.5%

Hispanic or Latino 5.2%

Two or more races 4.7%

Asian 4.5%

Other race 2.4%

Black or African American 1.6%

Group	Count	%
White	13,431	81.5%
Hispanic or Latino	853	5.2%
Two or more races	782	4.7%
Asian	743	4.5%
Other race	402	2.4%
Black or African American	259	1.6%

Household income

Under $10k 1.3%

$10k–$15k 0.4%

$15k–$25k 3.7%

$25k–$35k 3.6%

$35k–$50k 4.7%

$50k–$75k 8.6%

$75k–$100k 12.1%

$100k–$150k 15.2%

$150k–$200k 14.0%

$200k+ 36.4%

Range	% of households
Under $10k	1.3%
$10k–$15k	0.4%
$15k–$25k	3.7%
$25k–$35k	3.6%
$35k–$50k	4.7%
$50k–$75k	8.6%
$75k–$100k	12.1%
$100k–$150k	15.2%
$150k–$200k	14.0%
$200k+	36.4%
Median income	$151,971

Housing

Home values

Under $50k 0.4%

$50k–$100k 0.7%

$100k–$150k 0.8%

$150k–$200k 0.2%

$200k–$300k 1.8%

$300k–$500k 23.7%

$500k–$1M 55.7%

$1M+ 16.8%

Housing overview

Metric	Value
Median home value	$659,900
Median rent / month	$2,198
Owner occupied	89.0%
Renter occupied	11.0%
Vacant	5.8%
Single-family detached	79.5%
Large apartment buildings	0.6%
Mobile homes	0.0%
Median rooms	7.3
Avg household size (owned)	2.83

Year built

Era	%
2020 or later	0.0%
2010–2019	3.0%
2000–2009	4.7%
1990–1999	11.6%
1980–1989	17.7%
1970–1979	18.1%
1960–1969	21.3%
1950–1959	10.4%
1940–1949	3.4%
1939 or earlier	9.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	8.5%
2 bedrooms	10.3%
3 bedrooms	31.6%
4 bedrooms	33.7%
5+ bedrooms	13.3%

Vehicles per household

Vehicles	% of households
No vehicle	4.4%
1 vehicle	25.0%
2 vehicles	38.2%
3 or more	32.4%

Heating fuel

Fuel type	%
Utility gas	34.1%
Electricity	13.9%
Propane / LP gas	2.8%
Fuel oil	46.3%
Wood	0.5%
Solar	0.1%
No fuel used	1.8%

Households & families

Household type	Count	%
Married-couple family	3,392	62.1%
Cohabiting couple	242	4.4%
Male householder, no spouse	481	8.8%
Female householder, no spouse	1,348	24.7%
Households with children under 18	1,731	31.7%
Households with seniors (65+)	2,019	37.0%
Average household size	2.78

Marital status

Status	Male	Female
Never married	32.1%	25.2%
Married	58.4%	53.9%
Separated	2.3%	1.5%
Widowed	2.6%	12.2%
Divorced	4.6%	7.2%

Education

Less than 9th grade 1.8%

Some HS, no diploma 2.5%

HS graduate 16.6%

Some college, no degree 16.5%

Associate's degree 9.0%

Bachelor's degree 26.4%

Graduate / professional 27.3%

Metric	%
HS diploma or higher	95.7%
Bachelor's or higher	53.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	212	5.6%
Kindergarten	107	2.8%
Elementary school	1,430	37.5%
High school	1,162	30.4%
College / grad school	906	23.7%

Employment

Industry of employment

Education & healthcare 34.5%

Professional & management 15.5%

Retail trade 8.4%

Finance & real estate 8.1%

Construction 7.4%

Manufacturing 6.3%

Arts, food & hospitality 6.2%

Transportation & utilities 3.8%

Public administration 3.2%

Other services 2.4%

Wholesale trade 2.3%

Information 1.9%

Occupation

Category	%
Management, business & arts	55.3%
Service	12.7%
Sales & office	20.5%
Natural resources & construction	5.9%
Production & transportation	5.6%

Employment type

Type	%
Private sector	72.8%
Government	22.1%
Self-employed	5.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.2%
Carpool	5.1%
Public transit	3.6%
Walk	1.4%
Other means	0.7%
Avg commute (minutes)	32.3

Poverty

All people 2.1%

Under 18 years 1.5%

18 and over 2.2%

Married-couple families 0.5%

Female-led households 3.7%

Income support

Source	% of households
Social Security	35.9%
Retirement income	30.9%
Supplemental Security	2.2%
Cash public assistance	2.8%
Food stamps / SNAP	2.8%

Health indicators

Condition	%
High blood pressure	29.1%
High cholesterol	31.4%
Heart disease	5.8%
Stroke	2.5%
Asthma	9.0%
Arthritis	21.3%
Kidney disease	2.7%
Pulmonary disease	5.2%
Cancer	8.1%

Behavior / access	%
Binge drinking	17.3%
No physical activity	18.8%
Less than 7 hrs sleep	31.2%
Fair or poor health	9.0%
Poor mental health	11.7%
Poor physical health	7.8%
No health insurance	7.5%
Visited doctor (checkup)	79.9%
Visited dentist	74.5%
Cholesterol screening	93.8%
Teeth loss	8.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	562	4.5%

Disability	%
Any disability	8.9%
Under 18	5.1%
18–64 years	5.5%
65 and over	23.8%

Health insurance coverage

Type	%
Private insurance	87.2%
Public insurance	25.4%
Uninsured under 19	1.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	15,068	96.5%
Spanish	320	2.1%
Other Indo-European	199	1.3%
Asian & Pacific Islander	35	0.2%
Other languages	77	0.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	14,411	92.3%
Born in same state	14,229	91.1%
Born in different state	13,121	84.0%
Foreign born	182	1.2%
Naturalized citizen	1,206	7.7%
Not a US citizen	794	65.8%

Ancestry

Ancestry	Count	%
Italian	3,523	22.6%
Arab	901	5.8%
French	690	4.4%
Polish	166	1.1%
Irish	142	0.9%

Ancestry	Count	%
English	123	0.8%
German	37	0.2%
Dutch	30	0.2%
Norwegian	6	0%

Technology access

Metric	% of households
Computer access	35.0%
Internet access	96.2%

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

Frequently asked questions

What is the ZIP code for Saint James, NY?

Saint James, NY has one ZIP code: 11780.

What is the main ZIP code for Saint James, NY?

The primary ZIP code for Saint James, NY is 11780. The city uses area code 631 for phone service.

What county is Saint James, NY in?

Saint James is located in Suffolk County, New York.

How many ZIP codes are in Saint James, NY?

Saint James, NY has 1 ZIP code.

What is the ZIP code for the Saint James downtown area and Main Street business district?

The Saint James downtown area, including Main Street and the central business district, is located in ZIP code 11780.

What ZIP code covers the Saint James Public Library and the surrounding civic center area?

The Saint James Public Library and civic center are located in ZIP code 11780, which serves the entire Saint James community in Suffolk County.