Holtsville ZIP Codes — Suffolk County, NY

There are 3 unique ZIP codes in Holtsville, New York. Area code: 631.

ZIP codes

5.15

sq mi land

0.00

sq mi water

631

area code

Holtsville, NY ZIP code map

About Holtsville, NY

Holtsville, NY, is a vibrant community located in Suffolk County, New York. Known for its suburban charm, the area offers a balance of residential living and local amenities. With a rich history and a close-knit community, Holtsville is an appealing destination for families and individuals alike.

Location & geography

Holtsville is positioned on Long Island and is approximately 2.5 miles northwest of Patchogue and about 2 miles east of Farmingville. The city spans a total land area of 5.15 square miles and features no significant water areas, maintaining its landlocked status. Its terrain is predominantly flat, making it easily accessible for residents and visitors.

Community & economy

The character of Holtsville is defined by its suburban atmosphere, with a mix of residential neighborhoods and commercial establishments. The local economy thrives on various industries, including retail, healthcare, and education, which provide ample job opportunities. Daily life in Holtsville is marked by community events, parks, and local gatherings that foster a strong sense of belonging among its residents.

Transportation

Holtsville is conveniently located near major highways, including the Long Island Expressway (I-495), which facilitates easy commutes to New York City and surrounding areas. The nearest airport is Long Island MacArthur Airport, providing domestic flights for travelers. Public transportation options are available through local bus services that connect Holtsville to nearby cities and towns.

History

Holtsville was founded in the late 19th century and has developed into a prominent suburb over the years. Historically, it has been characterized by agricultural industries, which have gradually given way to residential developments and commercial enterprises. Notable events in the community include the establishment of various local parks and recreational centers that celebrate Holtsville's commitment to outdoor activities.

Did you know?

One surprising fact about Holtsville is that it is home to the Holtsville Ecology Site, a unique environmental education center that promotes sustainability and conservation. Additionally, the area hosts an annual street fair that celebrates local culture and attracts visitors from surrounding communities.

ZIP codes for Holtsville, NY (3)

ZIP code	City	County	Map
00501	Holtsville	Suffolk	View map
00544	Holtsville	Suffolk	View map
11742	Holtsville	Suffolk	View map

Demographics & statistics

13,448

Population

39.8

Median age

$126,755

Median household income

$50,452

Per capita income

$450,900

Median home value

$2,145

Median monthly rent

81.1%

Home ownership

5.4%

Poverty rate

2.6%

Unemployment

3,800

Housing units

33.9%

Bachelor's or higher

Age distribution

Male Female

412

Under 5

416

430

5–9

435

309

10–14

312

434

15–19

438

349

20–24

352

797

25–34

806

1,112

35–44

1,125

1,080

45–54

1,093

489

55–59

494

384

60–64

388

620

65–74

626

210

75–84

212

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,880	21.4%
18 and over	10,568	78.6%
65 and over	1,793	13.3%
Median age	39.8 years

Race & ethnicity

White 76.1%

Black or African American 6.3%

Hispanic or Latino 6%

Two or more races 3.7%

Asian 3.5%

Other race 3.1%

American Indian / Alaska Native 1.3%

Group	Count	%
White	10,890	76.1%
Black or African American	903	6.3%
Hispanic or Latino	865	6%
Two or more races	531	3.7%
Asian	501	3.5%
Other race	442	3.1%
American Indian / Alaska Native	181	1.3%

Household income

Under $10k 0.5%

$10k–$15k 3.4%

$15k–$25k 2.9%

$25k–$35k 6.5%

$35k–$50k 6.3%

$50k–$75k 8.2%

$75k–$100k 10.9%

$100k–$150k 22.9%

$150k–$200k 15.0%

$200k+ 23.2%

Range	% of households
Under $10k	0.5%
$10k–$15k	3.4%
$15k–$25k	2.9%
$25k–$35k	6.5%
$35k–$50k	6.3%
$50k–$75k	8.2%
$75k–$100k	10.9%
$100k–$150k	22.9%
$150k–$200k	15.0%
$200k+	23.2%
Median income	$126,755

Housing

Home values

Under $50k 1.4%

$50k–$100k 1.0%

$100k–$150k 2.2%

$150k–$200k 2.7%

$200k–$300k 6.9%

$300k–$500k 51.5%

$500k–$1M 34.4%

Housing overview

Metric	Value
Median home value	$450,900
Median rent / month	$2,145
Owner occupied	81.1%
Renter occupied	18.9%
Vacant	2.3%
Single-family detached	66.7%
Large apartment buildings	5.8%
Mobile homes	0.0%
Median rooms	5.7
Avg household size (owned)	2.95

Year built

Era	%
2020 or later	0.0%
2010–2019	3.7%
2000–2009	10.9%
1990–1999	17.3%
1980–1989	15.4%
1970–1979	28.6%
1960–1969	11.5%
1950–1959	5.5%
1940–1949	5.6%
1939 or earlier	1.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	7.9%
2 bedrooms	28.8%
3 bedrooms	32.5%
4 bedrooms	23.2%
5+ bedrooms	7.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.5%
1 vehicle	25.5%
2 vehicles	43.4%
3 or more	27.5%

Heating fuel

Fuel type	%
Utility gas	40.1%
Electricity	13.0%
Propane / LP gas	0.7%
Fuel oil	45.2%
Wood	0.4%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	2,545	55.9%
Cohabiting couple	349	7.7%
Male householder, no spouse	685	15.0%
Female householder, no spouse	976	21.4%
Households with children under 18	1,684	37.0%
Households with seniors (65+)	1,366	30.0%
Average household size	2.94

Marital status

Status	Male	Female
Never married	38.0%	30.9%
Married	53.0%	49.9%
Separated	0.4%	2.0%
Widowed	3.4%	5.5%
Divorced	5.2%	11.8%

Education

Less than 9th grade 4.6%

Some HS, no diploma 5.2%

HS graduate 29.4%

Some college, no degree 17.6%

Associate's degree 9.4%

Bachelor's degree 18.4%

Graduate / professional 15.4%

Metric	%
HS diploma or higher	90.2%
Bachelor's or higher	33.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	259	8.3%
Kindergarten	284	9.1%
Elementary school	1,102	35.4%
High school	682	21.9%
College / grad school	786	25.2%

Employment

Industry of employment

Education & healthcare 29.7%

Construction 11.4%

Professional & management 10.4%

Retail trade 8.1%

Finance & real estate 8.0%

Arts, food & hospitality 6.9%

Manufacturing 5.9%

Public administration 5.2%

Transportation & utilities 4.5%

Wholesale trade 3.4%

Other services 3.3%

Information 2.3%

Agriculture & mining 0.9%

Occupation

Category	%
Management, business & arts	43.0%
Service	15.2%
Sales & office	22.1%
Natural resources & construction	10.7%
Production & transportation	9.1%

Employment type

Type	%
Private sector	77.3%
Government	20.0%
Self-employed	2.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	80.2%
Carpool	6.8%
Public transit	4.6%
Walk	0.2%
Other means	1.8%
Avg commute (minutes)	30.1

Poverty

All people 5.4%

Under 18 years 4.1%

18 and over 5.7%

Married-couple families 1.8%

Female-led households 10.7%

Income support

Source	% of households
Social Security	30.4%
Retirement income	25.3%
Supplemental Security	3.4%
Cash public assistance	1.3%
Food stamps / SNAP	1.4%

Health indicators

Condition	%
High blood pressure	25.5%
High cholesterol	28.6%
Heart disease	4.5%
Stroke	2.1%
Asthma	9.4%
Arthritis	17.9%
Kidney disease	2.2%
Pulmonary disease	5.0%
Cancer	5.8%

Behavior / access	%
Binge drinking	19.6%
No physical activity	20.9%
Less than 7 hrs sleep	34.6%
Fair or poor health	9.7%
Poor mental health	13.8%
Poor physical health	8.0%
No health insurance	10.4%
Visited doctor (checkup)	76.8%
Visited dentist	69.4%
Cholesterol screening	91.4%
Teeth loss	10.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	465	4.4%

Disability	%
Any disability	7.7%
Under 18	2.2%
18–64 years	5.7%
65 and over	26.4%

Health insurance coverage

Type	%
Private insurance	81.4%
Public insurance	25.3%
Uninsured under 19	0.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	12,620	93.8%
Spanish	864	6.8%
Other Indo-European	313	2.5%
Asian & Pacific Islander	302	2.4%
Other languages	188	1.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	11,744	87.3%
Born in same state	11,679	86.8%
Born in different state	11,195	83.2%
Foreign born	65	0.5%
Naturalized citizen	1,704	12.7%
Not a US citizen	1,003	58.9%

Ancestry

Ancestry	Count	%
Italian	2,870	21.3%
Arab	1,100	8.2%
French	683	5.1%
Dutch	57	0.4%
Irish	54	0.4%

Ancestry	Count	%
Polish	38	0.3%
English	28	0.2%
German	26	0.2%
Norwegian	8	0.1%

Technology access

Metric	% of households
Computer access	33.9%
Internet access	98.1%

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

Frequently asked questions

What ZIP codes does Holtsville, NY have?

Holtsville, NY has 3 ZIP codes: 00501, 00544, and 11742. Each ZIP code serves a distinct delivery area within the city and surrounding region.