11722 ZIP Code — Central Islip, NY

Suffolk County, New York

ZIP code 11722 is located in Central Islip, New York, within Suffolk County. It covers approximately 6.97 square miles and serves a population of 37,032 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 631/516.

About ZIP code 11722

The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $365,800. Owner-occupancy sits near the national average at 75%.

Median household income is $100,387. 32% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.

College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include Spanish spoken in 25% of households.

Overall, ZIP code 11722 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.

37,032

population

6.97

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

11722 ZIP code map

Cities in ZIP code 11722

Below are the cities the US Postal Service accepts for ZIP code 11722. Using any city not on this list may result in mail delivery delays.

City	Status
Central Islip	Acceptable
Central Islip	Preferred

Nearby ZIP codes

11752 Islip Terrace (1.8 mi) 11749 Islandia (2.2 mi) 11749 Islandia (2.2 mi) 11788 Hauppauge (2.7 mi) 11717 Brentwood (2.8 mi) 11751 Islip (3.5 mi) 11716 Bohemia (3.9 mi) 11730 East Islip (4.2 mi) 11769 Oakdale (4.7 mi) 11779 Ronkonkoma (4.8 mi) 11767 Nesconset (5.2 mi) 11718 Brightwaters (5.5 mi)

Demographics updated 05/2026

Population
Total population	37,032
Population density	5,313 / sq mi
State FIPS	36
County FIPS	103

Geography
Land area	6.97 sq mi
Water area	0.00 sq mi
Latitude	40.7807
Longitude	-73.1985
Timezone	Eastern (ET)
Area code	631/516

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.5%	22.6%	37.0%
$50k – $100k	30.5%	24.7%	27.0%
$100k – $200k	31.4%	34.6%	24.4%
Over $200k	7.6%	18.0%	11.5%

Demographics & statistics

37,032

Population

5,313

People per sq mi

34.4

Median age

$100,387

Median household income

$33,005

Per capita income

$365,800

Median home value

$2,120

Median monthly rent

74.6%

Home ownership

10.6%

Poverty rate

4.6%

Unemployment

8,158

Housing units

18.6%

Bachelor's or higher

Age distribution

Male Female

1,243

Under 5

1,190

983

5–9

941

1,431

10–14

1,369

1,848

15–19

1,769

1,336

20–24

1,278

2,753

25–34

2,635

2,854

35–44

2,732

2,394

45–54

2,290

1,118

55–59

1,070

941

60–64

900

1,201

65–74

1,150

687

75–84

658

133

85+

128

← Male

Female →

Age summary

Group	Count	%
Under 18	8,998	24.3%
18 and over	28,034	75.7%
65 and over	3,957	10.7%
Median age	34.4 years

Race & ethnicity

Hispanic or Latino 28.5%

White 25.8%

Other race 16.8%

Black or African American 14.4%

Two or more races 12.8%

Asian 1.4%

American Indian / Alaska Native 0.2%

Group	Count	%
Hispanic or Latino	14,777	28.5%
White	13,348	25.8%
Other race	8,688	16.8%
Black or African American	7,481	14.4%
Two or more races	6,647	12.8%
Asian	737	1.4%
American Indian / Alaska Native	110	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.5%	22.6%	37.0%
$50k – $100k	30.5%	24.7%	27.0%
$100k – $200k	31.4%	34.6%	24.4%
Over $200k	7.6%	18.0%	11.5%

Under $10k 2.7%

$10k–$15k 4.0%

$15k–$25k 6.0%

$25k–$35k 3.9%

$35k–$50k 6.4%

$50k–$75k 15.4%

$75k–$100k 11.4%

$100k–$150k 23.4%

$150k–$200k 13.7%

$200k+ 13.2%

Range	% of households
Under $10k	2.7%
$10k–$15k	4.0%
$15k–$25k	6.0%
$25k–$35k	3.9%
$35k–$50k	6.4%
$50k–$75k	15.4%
$75k–$100k	11.4%
$100k–$150k	23.4%
$150k–$200k	13.7%
$200k+	13.2%
Median income	$100,387

Housing

Home values

Under $50k 3.4%

$50k–$100k 0.7%

$100k–$150k 0.3%

$150k–$200k 2.9%

$200k–$300k 20.1%

$300k–$500k 61.8%

$500k–$1M 10.1%

$1M+ 0.8%

Housing overview

Metric	Value
Median home value	$365,800
Median rent / month	$2,120
Owner occupied	74.6%
Renter occupied	25.4%
Vacant	7.5%
Single-family detached	68.5%
Large apartment buildings	4.4%
Mobile homes	0.3%
Median rooms	5.7
Avg household size (owned)	3.99

Year built

Era	%
2020 or later	0.4%
2010–2019	2.3%
2000–2009	6.5%
1990–1999	12.9%
1980–1989	7.6%
1970–1979	18.9%
1960–1969	20.8%
1950–1959	22.6%
1940–1949	5.8%
1939 or earlier	2.1%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	12.4%
2 bedrooms	18.5%
3 bedrooms	35.1%
4 bedrooms	20.1%
5+ bedrooms	11.9%

Vehicles per household

Vehicles	% of households
No vehicle	10.9%
1 vehicle	26.5%
2 vehicles	30.5%
3 or more	32.1%

Heating fuel

Fuel type	%
Utility gas	51.3%
Electricity	11.5%
Propane / LP gas	1.8%
Fuel oil	34.0%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	3,901	39.5%
Cohabiting couple	1,036	10.5%
Male householder, no spouse	1,811	18.4%
Female householder, no spouse	3,116	31.6%
Households with children under 18	3,619	36.7%
Households with seniors (65+)	3,172	32.2%
Average household size	3.73

Marital status

Status	Male	Female
Never married	50.4%	44.2%
Married	35.7%	32.5%
Separated	2.7%	2.7%
Widowed	1.1%	6.2%
Divorced	10.1%	14.5%

Education

Less than 9th grade 14.5%

Some HS, no diploma 10.3%

HS graduate 31.7%

Some college, no degree 17.9%

Associate's degree 7.0%

Bachelor's degree 11.6%

Graduate / professional 7.0%

Metric	%
HS diploma or higher	75.2%
Bachelor's or higher	18.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	334	3.6%
Kindergarten	467	5.0%
Elementary school	3,609	38.6%
High school	2,518	26.9%
College / grad school	2,423	25.9%

Employment

Industry of employment

Education & healthcare 25.9%

Professional & management 12.2%

Retail trade 11.5%

Manufacturing 9.9%

Construction 8.7%

Transportation & utilities 7.3%

Arts, food & hospitality 7.3%

Finance & real estate 4.1%

Public administration 4.1%

Other services 3.7%

Wholesale trade 3.5%

Information 1.3%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	23.8%
Service	26.3%
Sales & office	20.5%
Natural resources & construction	9.2%
Production & transportation	20.1%

Employment type

Type	%
Private sector	81.4%
Government	14.8%
Self-employed	3.8%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	75.1%
Carpool	12.8%
Public transit	3.0%
Walk	1.0%
Work from home	6.8%
Other means	1.3%
Avg commute (minutes)	28.3

Poverty

All people 10.6%

Under 18 years 10.1%

18 and over 10.8%

Married-couple families 3.5%

Female-led households 15.0%

Income support

Source	% of households
Social Security	32.3%
Retirement income	20.9%
Supplemental Security	7.6%
Cash public assistance	4.8%
Food stamps / SNAP	14.2%

Health indicators

Condition	%
Obesity	33.0%
High blood pressure	27.8%
High cholesterol	26.5%
Diabetes	10.1%
Heart disease	4.5%
Stroke	2.6%
Asthma	10.2%
Arthritis	16.5%
Kidney disease	2.6%
Pulmonary disease	4.9%
Cancer	4.3%

Behavior / access	%
Smoking	16.8%
Binge drinking	17.3%
No physical activity	30.1%
Less than 7 hrs sleep	38.8%
Depression	16.1%
Fair or poor health	15.6%
Poor mental health	15.0%
Poor physical health	9.8%
No health insurance	22.0%
Visited doctor (checkup)	76.8%
Visited dentist	57.3%
Cholesterol screening	88.8%
Teeth loss	15.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	724	2.6%

Disability	%
Any disability	9.2%
Under 18	3.7%
18–64 years	7.5%
65 and over	32.1%

Health insurance coverage

Type	%
Private insurance	61.5%
Public insurance	37.3%
No insurance	10.0%
Uninsured under 19	7.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	34,599	93.4%
Spanish	8,548	24.7%
Other Indo-European	7,765	22.4%
Asian & Pacific Islander	609	1.8%
Other languages	98	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	24,053	65.0%
Born in same state	22,585	61.0%
Born in different state	20,244	54.7%
Foreign born	1,468	4.0%
Naturalized citizen	12,979	35.0%
Not a US citizen	6,306	48.6%

Ancestry

Ancestry	Count	%
Arab	1,675	4.5%
Italian	1,322	3.6%
French	254	0.7%
Irish	132	0.4%

Ancestry	Count	%
German	101	0.3%
Polish	32	0.1%
English	18	0%
Dutch	14	0%

Technology access

Metric	% of households
Computer access	26.6%
Internet access	93.8%

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

Frequently asked questions about ZIP code 11722

What city is ZIP code 11722 in?

ZIP code 11722 is primarily assigned to Central Islip, New York.

What county is ZIP code 11722 in?

ZIP code 11722 falls within Suffolk County, New York.

Is Spanish widely spoken in ZIP code 11722?

Approximately 25% of households in ZIP code 11722 speak Spanish as a primary language.

What is the typical home value in ZIP code 11722?

The median home value in ZIP code 11722 is $365,800.

What is the population of ZIP code 11722?

ZIP code 11722 has an estimated population of 37,032 residents, with a density of 5,315 people per square mile.

What is the median household income in ZIP code 11722?

The median household income in ZIP code 11722 is $100,387, above the national median of ~$75,000.

What timezone is ZIP code 11722 in?

ZIP code 11722 observes the EST timezone.