Centereach ZIP Codes — Suffolk County, NY

There is one unique ZIP code in Centereach, New York and it is 11720. Area code: 631.

ZIP codes

8.23

sq mi land

0.00

sq mi water

631

area code

Centereach, NY ZIP code map

About Centereach, NY

Centereach, NY, is a vibrant community located in Suffolk County, New York. This town is known for its suburban feel and family-friendly atmosphere, making it an appealing area for both residents and visitors. With various parks, shopping areas, and local eateries, Centereach offers a blend of conveniences that enhance daily life.

Location & geography

Geographically, Centereach covers a land area of 8.23 square miles, situated on Long Island's central portion. The town is bordered by other communities such as Belport, just 3.3 miles to the west, and Selden, approximately 2 miles to the north. With no water area, Centereach features a primarily flat terrain that is characteristic of the suburban landscape of the region.

Community & economy

The character of Centereach is defined by a close-knit community atmosphere, making it ideal for families and individuals seeking a suburban lifestyle. The local economy is supported by various industries, including retail and service sectors, which provide ample employment opportunities. Residents engage in a variety of daily activities such as shopping at local businesses, enjoying nearby parks, and participating in community events.

Transportation

Centereach is conveniently located near several major highways, including the Long Island Expressway (I-495), which allows for easy access to surrounding areas. The nearest public transportation options include Suffolk County Transit bus services that connect residents to nearby towns and cities. For air travel, the closest airport is Long Island MacArthur Airport, situated approximately 10 miles away.

History

Centereach was settled in the early 20th century and has since evolved into a thriving suburban town. Originally an agricultural community, the area shifted towards residential development post-World War II, reflecting broader trends in suburbanization. Significant events in Centereach's history include the establishment of several schools and parks that catered to its growing population.

Did you know?

A little-known fact about Centereach is that it hosts the Centereach Mall, which is a key retail hub in the area. Additionally, the town is often celebrated for its diverse community events, which promote local culture and bring residents together throughout the year.

ZIP codes for Centereach, NY (1)

ZIP code	City	County	Map
11720	Centereach	Suffolk	View map

Demographics & statistics

29,193

Population

38.1

Median age

$123,603

Median household income

$46,674

Per capita income

$438,500

Median home value

$2,299

Median monthly rent

82.5%

Home ownership

5.4%

Poverty rate

5.9%

Unemployment

7,948

Housing units

35.4%

Bachelor's or higher

Age distribution

Male Female

793

Under 5

801

561

5–9

566

1,089

10–14

1,098

1,297

15–19

1,309

1,011

20–24

1,021

1,878

25–34

1,896

1,742

35–44

1,758

2,090

45–54

2,108

1,081

55–59

1,091

919

60–64

928

1,037

65–74

1,047

691

75–84

698

340

85+

343

← Male

Female →

Age summary

Group	Count	%
Under 18	6,664	22.8%
18 and over	22,529	77.2%
65 and over	4,156	14.2%
Median age	38.1 years

Race & ethnicity

White 70.1%

Hispanic or Latino 7.6%

Asian 6.4%

Two or more races 6.2%

Black or African American 5.2%

Other race 4.2%

American Indian / Alaska Native 0.3%

Group	Count	%
White	22,148	70.1%
Hispanic or Latino	2,409	7.6%
Asian	2,014	6.4%
Two or more races	1,970	6.2%
Black or African American	1,645	5.2%
Other race	1,317	4.2%
American Indian / Alaska Native	92	0.3%

Household income

Under $10k 1.8%

$10k–$15k 0.5%

$15k–$25k 3.3%

$25k–$35k 3.1%

$35k–$50k 4.4%

$50k–$75k 13.3%

$75k–$100k 11.7%

$100k–$150k 24.8%

$150k–$200k 14.0%

$200k+ 23.0%

Range	% of households
Under $10k	1.8%
$10k–$15k	0.5%
$15k–$25k	3.3%
$25k–$35k	3.1%
$35k–$50k	4.4%
$50k–$75k	13.3%
$75k–$100k	11.7%
$100k–$150k	24.8%
$150k–$200k	14.0%
$200k+	23.0%
Median income	$123,603

Housing

Home values

Under $50k 1.2%

$100k–$150k 1.5%

$150k–$200k 0.5%

$200k–$300k 9.4%

$300k–$500k 59.5%

$500k–$1M 27.1%

$1M+ 0.8%

Housing overview

Metric	Value
Median home value	$438,500
Median rent / month	$2,299
Owner occupied	82.5%
Renter occupied	17.5%
Vacant	5.9%
Single-family detached	88.9%
Large apartment buildings	4.2%
Mobile homes	0.6%
Median rooms	6.7
Avg household size (owned)	3.37

Year built

Era	%
2020 or later	0.0%
2010–2019	1.7%
2000–2009	9.1%
1990–1999	7.6%
1980–1989	7.6%
1970–1979	21.6%
1960–1969	26.5%
1950–1959	17.8%
1940–1949	4.2%
1939 or earlier	3.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.5%
1 bedroom	7.0%
2 bedrooms	10.6%
3 bedrooms	40.1%
4 bedrooms	32.6%
5+ bedrooms	7.2%

Vehicles per household

Vehicles	% of households
No vehicle	4.9%
1 vehicle	22.3%
2 vehicles	39.3%
3 or more	33.5%

Heating fuel

Fuel type	%
Utility gas	48.9%
Electricity	8.5%
Propane / LP gas	1.2%
Fuel oil	40.0%
Wood	0.2%
Solar	0.6%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	5,659	63.2%
Cohabiting couple	464	5.2%
Male householder, no spouse	995	11.1%
Female householder, no spouse	1,838	20.5%
Households with children under 18	3,361	37.5%
Households with seniors (65+)	2,991	33.4%
Average household size	3.24

Marital status

Status	Male	Female
Never married	36.8%	35.4%
Married	54.7%	50.2%
Separated	0.8%	1.2%
Widowed	2.9%	7.2%
Divorced	4.8%	6.0%

Education

Less than 9th grade 2.8%

Some HS, no diploma 5.3%

HS graduate 28.1%

Some college, no degree 17.6%

Associate's degree 10.7%

Bachelor's degree 17.9%

Graduate / professional 17.5%

Metric	%
HS diploma or higher	91.9%
Bachelor's or higher	35.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	521	6.4%
Kindergarten	243	3.0%
Elementary school	2,776	34.3%
High school	2,134	26.4%
College / grad school	2,414	29.8%

Employment

Industry of employment

Education & healthcare 30.4%

Retail trade 12.5%

Professional & management 11.5%

Construction 8.4%

Public administration 7.5%

Manufacturing 7.0%

Arts, food & hospitality 5.9%

Finance & real estate 5.0%

Transportation & utilities 4.8%

Other services 3.2%

Wholesale trade 1.9%

Information 1.7%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	43.5%
Service	18.6%
Sales & office	20.8%
Natural resources & construction	8.4%
Production & transportation	8.7%

Employment type

Type	%
Private sector	71.8%
Government	25.4%
Self-employed	2.8%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	77.6%
Carpool	8.0%
Public transit	3.0%
Walk	0.7%
Other means	2.0%
Avg commute (minutes)	31.6

Poverty

All people 5.4%

Under 18 years 5.8%

18 and over 5.2%

Married-couple families 1.5%

Female-led households 13.3%

Income support

Source	% of households
Social Security	34.7%
Retirement income	28.5%
Supplemental Security	4.2%
Cash public assistance	2.5%
Food stamps / SNAP	5.2%

Health indicators

Condition	%
High blood pressure	26.0%
High cholesterol	28.7%
Heart disease	4.7%
Stroke	2.2%
Asthma	9.3%
Arthritis	18.0%
Kidney disease	2.3%
Pulmonary disease	5.0%
Cancer	5.9%

Behavior / access	%
Binge drinking	19.1%
No physical activity	21.0%
Less than 7 hrs sleep	34.3%
Fair or poor health	9.7%
Poor mental health	13.5%
Poor physical health	8.0%
No health insurance	10.5%
Visited doctor (checkup)	77.2%
Visited dentist	69.5%
Cholesterol screening	91.3%
Teeth loss	10.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,274	5.7%

Disability	%
Any disability	8.5%
Under 18	2.9%
18–64 years	6.8%
65 and over	25.1%

Health insurance coverage

Type	%
Private insurance	82.1%
Public insurance	26.3%
Uninsured under 19	1.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	27,599	94.5%
Spanish	1,810	6.6%
Other Indo-European	843	3.1%
Asian & Pacific Islander	412	1.5%
Other languages	477	1.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	24,865	85.2%
Born in same state	24,396	83.6%
Born in different state	22,510	77.1%
Foreign born	469	1.6%
Naturalized citizen	4,328	14.8%
Not a US citizen	2,689	62.1%

Ancestry

Ancestry	Count	%
Italian	5,841	20%
Arab	1,381	4.7%
French	1,144	3.9%
Polish	234	0.8%
Irish	107	0.4%

Ancestry	Count	%
Norwegian	107	0.4%
German	98	0.3%
English	52	0.2%
Dutch	18	0.1%

Technology access

Metric	% of households
Computer access	30.7%
Internet access	96.0%

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

Frequently asked questions

What ZIP codes does Centereach, NY have?

Centereach, NY has one ZIP code: 11720. Each ZIP code serves a distinct delivery area within the city and surrounding region.