US ZIP Codes → NY → ISLIP

ISLIP, NY ZIP Code

City	ISLIP
State	New York
ZIP Codes count	1 (see all)
Post offices count	1 (see all)
Total population	17,921 (see all)

ZIP Code for ISLIP, New York

11751

This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.

ZIP Codes for ISLIP, NY by streets

Select a street from the list to find ZIP+4 code by address (street and house number)

List of ISLIP, NY ZIP Codes

ZIP	TYPE	POPULATION
11751	STANDARD	13,746

Post offices

ISLIP — Post Office^™ 309 MAIN ST UNIT 3 ISLIP, NY 11751-3453

Envelope example

On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:

Recipient's full name
Full street address
City, State, and ZIP Code

Using the same format, write the return address in the top left corner.

Using the full ZIP+4 Code when mailing via the USPS ensures the fastest, most accurate mailing possible. If you are not sure of the full 9-digit ZIP Code, use the 5-digit ZIP Code to avoid loss of letter or package.

The recipient address information is provided for your reference.

Address example

40 ATHASCA RD
ISLIP NY 11751-3810

95 CHATEAU LN
ISLIP NY 11751-4134

29 CORNELL ST
ISLIP NY 11751-2129

31 HEMLOCK ST
ISLIP NY 11751-3007

8 W BEECH ST
ISLIP NY 11751-1513

113 WHITMAN AVE
ISLIP NY 11751-1409

Map

Census data for ISLIP, NY

Demographic and housing estimates in ISLIP, NY

Total population
Total population	17,921
Male	8,750
Female	9,171

Population by age
Total population	17,921
Under 5 years	909
5 to 9 years	826
10 to 14 years	1,015
15 to 19 years	1,115
20 to 24 years	1,530
25 to 34 years	2,339
35 to 44 years	2,040
45 to 54 years	3,246
55 to 59 years	1,195
60 to 64 years	1,178
65 to 74 years	1,346
75 to 84 years	851
85 years and over	331
Median age (years)	42.2
Under 18 years	3,514
16 years and over	14,905
18 years and over	14,407
21 years and over	13,766
62 years and over	3,118
65 years and over	2,528

Population by race
Total population	17,921
One race	17,667
White	15,497
Black or African American	850
American Indian and Alaska Native	0
Asian	374
Native Hawaiian and Other Pacific Islander	0
Some other race	946
Two or more races	254

Citizen, voting age population
Citizen, VOTING AGE 18 and over population	13,359
Male Citizen, VOTING AGE 18 and over population	6,524
Female Citizen, VOTING AGE 18 and over population	6,835

Social characteristics in ISLIP, NY

Households by type
Total households	5,934
Family households (families)	4,313
Married-couple family	3,475
Male householder, no wife present, family	302
Female householder, no husband present, family	536
Nonfamily households	1,621
Average household size	3.01
Average family size	3.54

Economic characteristics in ISLIP, NY

Income and benefits (in 2018 inflation-adjusted dollars)
Total households	5,934
Less than $10,000	155
$10,000 to $14,999	82
$15,000 to $24,999	242
$25,000 to $34,999	383
$35,000 to $49,999	345
$50,000 to $74,999	765
$75,000 to $99,999	769
$100,000 to $149,999	1,553
$150,000 to $199,999	730
$200,000 or more	910
Median household income (dollars)	105,142

Housing characteristics in ISLIP, NY

Housing occupancy
Total housing units	6,405
Occupied housing units	5,934
Vacant housing units	471

Units in structure
Total housing units	6,405
1-unit, detached	4,877
1-unit, attached	227
2 units	323
3 or 4 units	387
5 to 9 units	165
10 to 19 units	138
20 or more units	274
Mobile home	14
Boat, RV, van, etc.	0

Year structure built
Total housing units	6,405
Built 2014 or later	20
Built 2010 to 2013	21
Built 2000 to 2009	222
Built 1990 to 1999	457
Built 1980 to 1989	471
Built 1970 to 1979	939
Built 1960 to 1969	1,409
Built 1950 to 1959	1,332
Built 1940 to 1949	300
Built 1939 or earlier	1,234

Rooms
Total housing units	6,405
1 room	25
2 rooms	78
3 rooms	464
4 rooms	653
5 rooms	804
6 rooms	1,381
7 rooms	1,061
8 rooms	737
9 rooms or more	1,202
Median rooms	6.4

Bedrooms
Total housing units	6,405
No bedroom	25
1 bedroom	613
2 bedrooms	1,125
3 bedrooms	2,517
4 bedrooms	1,604
5 or more bedrooms	521

Housing tenure
Occupied housing units	5,934
Owner-occupied	5,158
Renter-occupied	776
Average household size of owner-occupied unit	3.01
Average household size of renter-occupied unit	3.02

Year householder moved into unit
Occupied housing units	5,934
Moved in 2017 or later	145
Moved in 2015 to 2016	343
Moved in 2010 to 2014	1,037
Moved in 2000 to 2009	1,758
Moved in 1990 to 1999	1,049
Moved in 1989 and earlier	1,602

Value
Owner-occupied units	5,158
Less than $50,000	114
$50,000 to $99,999	49
$100,000 to $149,999	239
$150,000 to $199,999	246
$200,000 to $299,999	512
$300,000 to $499,999	3,254
$500,000 to $999,999	679
$1,000,000 or more	65
Median (dollars)	369,000

Mortgage status
Owner-occupied units	5,158
Housing units with a mortgage	3,426
Housing units without a mortgage	1,732

Gross rent
Occupied units paying rent	752
Less than $500	0
$500 to $999	31
$1,000 to $1,499	366
$1,500 to $1,999	199
$2,000 to $2,499	136
$2,500 to $2,999	0
$3,000 or more	20
Median (dollars)	1,478
No rent paid	24

Data is based on 2018 Census

ZIP Codes for other locations

State for ISLIP

New York ZIP Codes

Other cities in New York

NEW YORK MANHATTAN QUEENS ALBANY BROOKLYN ISLAND PARK ISLAND TREES ISLANDIAISLIPISLIP MANOR ISLIP TERRACE ITASKA