Middle Island ZIP Code List — Suffolk County, NY

There is one unique ZIP code in Middle Island, New York and it is 11953. Area code: 631.

ZIP codes

10.31

sq mi land

0.07

sq mi water

631

area code

Middle Island, NY ZIP code map

About Middle Island, NY

Middle Island, NY, is a small yet vibrant community located in Suffolk County. Known for its suburban charm, this town offers a blend of residential living and natural beauty. With its peaceful atmosphere, Middle Island is an ideal place for families and individuals seeking a serene environment while being close to urban amenities.

Location & geography

Middle Island is situated on Long Island and is approximately 15 miles west of the vibrant city of Riverhead and about 10 miles east of Ronkonkoma. The town covers a total area of 10.31 square miles, characterized predominantly by its landmass, as the water area represents only 0.07 square miles. The terrain is typical of suburban New York, offering a mix of wooded areas and open spaces.

Community & economy

The community of Middle Island is known for its friendly atmosphere and strong sense of togetherness among residents. Predominantly a residential area, local industries include agriculture and small businesses that contribute to the economy while maintaining a low-key lifestyle. Daily life in Middle Island revolves around family-oriented activities, with local events and recreational opportunities available for all ages.

Transportation

Middle Island is conveniently located near several major highways, including the Long Island Expressway (I-495) which provides easy access to neighboring areas. The nearest airport is Long Island MacArthur Airport, situated about 10 miles to the northwest, offering domestic flights. Public transportation options are available, connecting residents to surrounding towns and cities.

History

Middle Island was founded in the early 18th century and has evolved from agricultural roots into a diverse community over the years. Key industries have historically included farming and small-scale commerce, which have significantly shaped the town's character. Notable events in its history include the establishment of community services that cater to the needs of its residents.

Did you know?

One little-known fact about Middle Island is that it was once home to an active farming community that played a crucial role in the agricultural development of Long Island. Additionally, the area is surrounded by nature preserves, providing residents and visitors with beautiful outdoor recreational opportunities.

ZIP codes for Middle Island, NY (1)

ZIP code	City	County	Map
11953	Middle Island	Suffolk	View map

Demographics & statistics

13,701

Population

44.0

Median age

$89,802

Median household income

$45,697

Per capita income

$332,200

Median home value

$1,902

Median monthly rent

68.9%

Home ownership

10.1%

Poverty rate

4.9%

Unemployment

4,252

Housing units

32.1%

Bachelor's or higher

Age distribution

Male Female

317

Under 5

374

332

5–9

391

372

10–14

438

340

15–19

402

286

20–24

337

657

25–34

774

884

35–44

1,042

792

45–54

933

526

55–59

621

419

60–64

495

785

65–74

925

379

75–84

447

199

85+

234

← Male

Female →

Age summary

Group	Count	%
Under 18	2,587	18.9%
18 and over	11,114	81.1%
65 and over	2,969	21.7%
Median age	44.0 years

Race & ethnicity

White 73.1%

Black or African American 14.2%

Hispanic or Latino 4.7%

Two or more races 4.6%

Other race 2.5%

Asian 0.9%

American Indian / Alaska Native 0.1%

Group	Count	%
White	10,510	73.1%
Black or African American	2,044	14.2%
Hispanic or Latino	677	4.7%
Two or more races	660	4.6%
Other race	353	2.5%
Asian	126	0.9%
American Indian / Alaska Native	8	0.1%

Household income

Under $10k 7.2%

$10k–$15k 4.6%

$15k–$25k 5.0%

$25k–$35k 4.4%

$35k–$50k 9.1%

$50k–$75k 14.8%

$75k–$100k 8.2%

$100k–$150k 18.7%

$150k–$200k 17.2%

$200k+ 10.8%

Range	% of households
Under $10k	7.2%
$10k–$15k	4.6%
$15k–$25k	5.0%
$25k–$35k	4.4%
$35k–$50k	9.1%
$50k–$75k	14.8%
$75k–$100k	8.2%
$100k–$150k	18.7%
$150k–$200k	17.2%
$200k+	10.8%
Median income	$89,802

Housing

Home values

Under $50k 2.5%

$50k–$100k 1.8%

$100k–$150k 5.8%

$150k–$200k 10.3%

$200k–$300k 19.3%

$300k–$500k 49.8%

$500k–$1M 8.4%

$1M+ 2.2%

Housing overview

Metric	Value
Median home value	$332,200
Median rent / month	$1,902
Owner occupied	68.9%
Renter occupied	31.1%
Vacant	5.8%
Single-family detached	50.9%
Large apartment buildings	7.2%
Mobile homes	0.0%
Median rooms	5.2
Avg household size (owned)	2.62

Year built

Era	%
2020 or later	0.3%
2010–2019	3.3%
2000–2009	15.6%
1990–1999	16.6%
1980–1989	14.1%
1970–1979	28.0%
1960–1969	8.5%
1950–1959	8.5%
1940–1949	2.3%
1939 or earlier	2.8%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	19.5%
2 bedrooms	32.0%
3 bedrooms	28.6%
4 bedrooms	16.1%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	10.6%
1 vehicle	36.6%
2 vehicles	35.1%
3 or more	17.8%

Heating fuel

Fuel type	%
Utility gas	48.3%
Electricity	14.6%
Propane / LP gas	2.3%
Fuel oil	34.6%
Wood	0.2%

Households & families

Household type	Count	%
Married-couple family	2,165	38.3%
Cohabiting couple	587	10.4%
Male householder, no spouse	1,166	20.6%
Female householder, no spouse	1,742	30.8%
Households with children under 18	1,479	26.1%
Households with seniors (65+)	2,133	37.7%
Average household size	2.37

Marital status

Status	Male	Female
Never married	32.8%	34.2%
Married	44.4%	38.2%
Separated	3.2%	2.3%
Widowed	6.8%	8.5%
Divorced	12.8%	16.9%

Education

Less than 9th grade 2.2%

Some HS, no diploma 6.3%

HS graduate 31.0%

Some college, no degree 20.6%

Associate's degree 7.7%

Bachelor's degree 17.7%

Graduate / professional 14.3%

Metric	%
HS diploma or higher	91.4%
Bachelor's or higher	32.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	183	5.8%
Kindergarten	162	5.1%
Elementary school	1,289	40.6%
High school	567	17.9%
College / grad school	975	30.7%

Employment

Industry of employment

Education & healthcare 30.1%

Professional & management 13.8%

Retail trade 10.7%

Transportation & utilities 9.8%

Manufacturing 8.5%

Public administration 5.9%

Construction 5.1%

Wholesale trade 4.5%

Finance & real estate 4.5%

Arts, food & hospitality 3.2%

Other services 2.2%

Information 1.6%

Occupation

Category	%
Management, business & arts	45.9%
Service	13.7%
Sales & office	22.1%
Natural resources & construction	6.2%
Production & transportation	12.1%

Employment type

Type	%
Private sector	73.4%
Government	22.5%
Self-employed	4.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.2%
Carpool	9.6%
Public transit	2.3%
Walk	0.5%
Other means	0.6%
Avg commute (minutes)	31.6

Poverty

All people 10.1%

Under 18 years 12.7%

18 and over 9.5%

Married-couple families 1.8%

Female-led households 18.2%

Income support

Source	% of households
Social Security	38.1%
Retirement income	31.1%
Supplemental Security	5.2%
Cash public assistance	1.5%
Food stamps / SNAP	11.9%

Health indicators

Condition	%
High blood pressure	30.3%
High cholesterol	30.8%
Heart disease	5.9%
Stroke	2.8%
Asthma	9.8%
Arthritis	21.1%
Kidney disease	2.8%
Pulmonary disease	6.1%
Cancer	6.8%

Behavior / access	%
Binge drinking	17.3%
No physical activity	23.7%
Less than 7 hrs sleep	35.4%
Fair or poor health	11.9%
Poor mental health	13.7%
Poor physical health	9.2%
No health insurance	11.3%
Visited doctor (checkup)	79.0%
Visited dentist	66.6%
Cholesterol screening	92.0%
Teeth loss	12.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	944	8.5%

Disability	%
Any disability	11.3%
Under 18	5.5%
18–64 years	7.9%
65 and over	26.4%

Health insurance coverage

Type	%
Private insurance	75.1%
Public insurance	35.8%
Uninsured under 19	6.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,010	95.0%
Spanish	561	4.3%
Other Indo-European	252	1.9%
Asian & Pacific Islander	259	2.0%
Other languages	50	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,048	87.9%
Born in same state	11,972	87.4%
Born in different state	10,910	79.6%
Foreign born	76	0.6%
Naturalized citizen	1,653	12.1%
Not a US citizen	843	51.0%

Ancestry

Ancestry	Count	%
Italian	1,818	13.3%
Arab	1,316	9.6%
French	425	3.1%
Polish	349	2.5%

Ancestry	Count	%
Irish	88	0.6%
English	60	0.4%
Dutch	45	0.3%
German	9	0.1%

Technology access

Metric	% of households
Computer access	41.3%
Internet access	89.8%

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

Frequently asked questions

What is the ZIP code for Middle Island, NY?

Middle Island, NY has one ZIP code: 11953.

What is the main ZIP code for Middle Island, NY?

The primary ZIP code for Middle Island, NY is 11953. The city uses area code 631 for phone service.

What county is Middle Island, NY in?

Middle Island is located in Suffolk County, New York.

How many ZIP codes are in Middle Island, NY?

Middle Island, NY has 1 ZIP code.

What ZIP code covers the Middle Island central residential area and surrounding neighborhoods?

Middle Island is served by the single ZIP code 11953, which encompasses the entire community in Suffolk County.

If I'm mailing something to a business in Middle Island near Route 25, what ZIP code should I use?

You should use ZIP code 11953, as all addresses within Middle Island, including those along Route 25, fall under this single ZIP code.