11717 ZIP Code — Brentwood, NY

Suffolk County, New York

ZIP code 11717 is located in Brentwood, New York, within Suffolk County. It covers approximately 10.74 square miles and serves a population of 64,969 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 631/516/934.

About ZIP code 11717

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1960s, giving the area an established character. Median home value is $416,200. Owner-occupancy is high at 80%, well above the national average.

The gap between median ($111,425) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.

College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include Spanish spoken in 32% of households.

Overall, ZIP code 11717 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

64,969

population

10.74

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

11717 ZIP code map

Cities in ZIP code 11717

Below are the cities the US Postal Service accepts for ZIP code 11717. Using any city not on this list may result in mail delivery delays.

City	Status
Brentwood	Acceptable
Brentwood	Preferred

Nearby ZIP codes

11722 Central Islip (2.8 mi) 11788 Hauppauge (3.4 mi) 11729 Deer Park (3.9 mi) 11751 Islip (4 mi) 11752 Islip Terrace (4.2 mi) 11725 Commack (4.3 mi) 11749 Islandia (4.4 mi) 11749 Islandia (4.4 mi) 11718 Brightwaters (4.5 mi) 11703 North Babylon (5.1 mi) 11795 West Islip (5.3 mi) 11730 East Islip (5.9 mi)

Demographics updated 05/2026

Population
Total population	64,969
Population density	6,049 / sq mi
State FIPS	36
County FIPS	103

Geography
Land area	10.74 sq mi
Water area	0.00 sq mi
Latitude	40.7818
Longitude	-73.2524
Timezone	Eastern (ET)
Area code	631/516/934

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.4%	22.6%	37.0%
$50k – $100k	29.1%	24.7%	27.0%
$100k – $200k	33.5%	34.6%	24.4%
Over $200k	11.9%	18.0%	11.5%

Demographics & statistics

64,969

Population

6,049

People per sq mi

36.1

Median age

$111,425

Median household income

$33,698

Per capita income

$416,200

Median home value

$1,660

Median monthly rent

80.3%

Home ownership

6.7%

Poverty rate

4.6%

Unemployment

12,487

Housing units

17.2%

Bachelor's or higher

Age distribution

Male Female

2,014

Under 5

1,953

2,001

5–9

1,940

2,133

10–14

2,069

2,003

15–19

1,943

2,456

20–24

2,382

5,274

25–34

5,116

4,768

35–44

4,624

4,741

45–54

4,598

1,864

55–59

1,808

2,079

60–64

2,017

2,146

65–74

2,081

975

75–84

946

527

85+

511

← Male

Female →

Age summary

Group	Count	%
Under 18	14,661	22.6%
18 and over	50,308	77.4%
65 and over	7,186	11.1%
Median age	36.1 years

Race & ethnicity

Hispanic or Latino 30.1%

White 24.8%

Other race 20.7%

Black or African American 11.1%

Two or more races 10.6%

Asian 1.8%

American Indian / Alaska Native 0.8%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
Hispanic or Latino	27,981	30.1%
White	23,075	24.8%
Other race	19,222	20.7%
Black or African American	10,277	11.1%
Two or more races	9,899	10.6%
Asian	1,692	1.8%
American Indian / Alaska Native	721	0.8%
Native Hawaiian / Pacific Islander	83	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.4%	22.6%	37.0%
$50k – $100k	29.1%	24.7%	27.0%
$100k – $200k	33.5%	34.6%	24.4%
Over $200k	11.9%	18.0%	11.5%

Under $10k 1.6%

$10k–$15k 1.7%

$15k–$25k 3.3%

$25k–$35k 5.1%

$35k–$50k 6.5%

$50k–$75k 12.9%

$75k–$100k 12.1%

$100k–$150k 22.5%

$150k–$200k 12.7%

$200k+ 21.7%

Range	% of households
Under $10k	1.6%
$10k–$15k	1.7%
$15k–$25k	3.3%
$25k–$35k	5.1%
$35k–$50k	6.5%
$50k–$75k	12.9%
$75k–$100k	12.1%
$100k–$150k	22.5%
$150k–$200k	12.7%
$200k+	21.7%
Median income	$111,425

Housing

Home values

Under $50k 2.3%

$50k–$100k 0.6%

$100k–$150k 0.5%

$150k–$200k 1.6%

$200k–$300k 6.6%

$300k–$500k 71.0%

$500k–$1M 15.2%

$1M+ 2.2%

Housing overview

Metric	Value
Median home value	$416,200
Median rent / month	$1,660
Owner occupied	80.3%
Renter occupied	19.7%
Vacant	4.0%
Single-family detached	75.5%
Large apartment buildings	4.4%
Mobile homes	1.9%
Median rooms	6.1
Avg household size (owned)	4.51

Year built

Era	%
2020 or later	0.2%
2010–2019	0.4%
2000–2009	9.6%
1990–1999	10.1%
1980–1989	9.8%
1970–1979	14.0%
1960–1969	27.7%
1950–1959	19.5%
1940–1949	6.1%
1939 or earlier	2.5%

Bedrooms

Size	% of units
No bedroom (studio)	3.3%
1 bedroom	6.4%
2 bedrooms	15.0%
3 bedrooms	36.2%
4 bedrooms	23.4%
5+ bedrooms	15.7%

Vehicles per household

Vehicles	% of households
No vehicle	10.6%
1 vehicle	24.7%
2 vehicles	25.3%
3 or more	39.3%

Heating fuel

Fuel type	%
Utility gas	44.8%
Electricity	10.9%
Propane / LP gas	3.2%
Fuel oil	39.4%
Wood	0.2%
Solar	0.3%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	7,759	52.5%
Cohabiting couple	1,337	9.0%
Male householder, no spouse	2,058	13.9%
Female householder, no spouse	3,625	24.5%
Households with children under 18	6,295	42.6%
Households with seniors (65+)	4,974	33.7%
Average household size	4.31

Marital status

Status	Male	Female
Never married	47.7%	43.1%
Married	40.9%	37.9%
Separated	1.9%	3.1%
Widowed	1.7%	7.6%
Divorced	7.7%	8.4%

Education

Less than 9th grade 21.6%

Some HS, no diploma 8.5%

HS graduate 29.2%

Some college, no degree 16.6%

Associate's degree 6.9%

Bachelor's degree 10.4%

Graduate / professional 6.8%

Metric	%
HS diploma or higher	70.0%
Bachelor's or higher	17.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	1,133	6.8%
Kindergarten	971	5.8%
Elementary school	5,991	35.7%
High school	3,601	21.5%
College / grad school	5,066	30.2%

Employment

Industry of employment

Education & healthcare 24.0%

Retail trade 12.8%

Manufacturing 12.2%

Professional & management 9.0%

Construction 8.8%

Transportation & utilities 8.6%

Arts, food & hospitality 8.2%

Finance & real estate 5.1%

Other services 4.3%

Wholesale trade 2.4%

Public administration 2.4%

Information 1.6%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	24.1%
Service	23.2%
Sales & office	21.3%
Natural resources & construction	10.9%
Production & transportation	20.4%

Employment type

Type	%
Private sector	85.6%
Government	10.2%
Self-employed	4.0%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	73.2%
Carpool	12.8%
Public transit	4.7%
Walk	1.0%
Work from home	3.1%
Other means	5.2%
Avg commute (minutes)	26.5

Poverty

All people 6.7%

Under 18 years 7.2%

18 and over 6.5%

Married-couple families 5.3%

Female-led households 4.9%

Income support

Source	% of households
Social Security	31.5%
Retirement income	20.0%
Supplemental Security	6.8%
Cash public assistance	4.9%
Food stamps / SNAP	12.7%

Health indicators

Condition	%
Obesity	32.8%
High blood pressure	26.1%
High cholesterol	26.0%
Diabetes	10.0%
Heart disease	4.5%
Stroke	2.4%
Asthma	9.7%
Arthritis	15.5%
Kidney disease	2.6%
Pulmonary disease	4.6%
Cancer	4.1%

Behavior / access	%
Smoking	16.0%
Binge drinking	17.7%
No physical activity	31.7%
Less than 7 hrs sleep	37.8%
Depression	15.7%
Fair or poor health	16.3%
Poor mental health	14.8%
Poor physical health	9.8%
No health insurance	26.0%
Visited doctor (checkup)	75.6%
Visited dentist	56.1%
Cholesterol screening	88.1%
Teeth loss	16.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,280	2.5%

Disability	%
Any disability	9.4%
Under 18	4.2%
18–64 years	6.5%
65 and over	38.2%

Health insurance coverage

Type	%
Private insurance	61.9%
Public insurance	35.1%
No insurance	11.4%
Uninsured under 19	8.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	61,002	93.9%
Spanish	19,783	32.4%
Other Indo-European	18,359	30.1%
Asian & Pacific Islander	1,180	1.9%
Other languages	73	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	37,921	58.4%
Born in same state	34,271	52.7%
Born in different state	31,230	48.1%
Foreign born	3,650	5.6%
Naturalized citizen	27,048	41.6%
Not a US citizen	13,037	48.2%

Ancestry

Ancestry	Count	%
Arab	2,013	3.1%
Italian	1,266	1.9%
Irish	347	0.5%
French	265	0.4%

Ancestry	Count	%
English	80	0.1%
Polish	30	0%
German	14	0%

Technology access

Metric	% of households
Computer access	22.7%
Internet access	95.7%

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

Frequently asked questions about ZIP code 11717

What part of Brentwood is ZIP code 11717?

ZIP code 11717 covers a portion of Brentwood, New York, within Suffolk County.

What county is ZIP code 11717 in?

ZIP code 11717 falls within Suffolk County, New York.

Is Spanish widely spoken in ZIP code 11717?

Approximately 32% of households in ZIP code 11717 speak Spanish as a primary language.

Is ZIP code 11717 mostly owner-occupied?

80% of occupied units in ZIP code 11717 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 11717?

The median home value in ZIP code 11717 is $416,200.

What is the median household income in ZIP code 11717?

The median household income in ZIP code 11717 is $111,425, above the national median of ~$75,000.

What timezone is ZIP code 11717 in?

ZIP code 11717 observes the EST timezone.