Islip, NY ZIP Codes
2 ZIP codes serve Islip, New York: 11706 and 11751. Together they are home to 82,702 residents in 24,471 households. That is more than the 17,362 people counted inside Islip Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $116,559 in 11751 to $119,603 in 11706.
Islip Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 17,362 |
| Households | 6,036 |
| Median household income | $120,909 |
| Median home value | $542,200 |
| Median age | 43.9 |
| Median rent | $2,235 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 82,702 |
| Households (sum of ZIP codes) | 24,471 |
| Median household income, range across ZIP codes | $116,559 (11751) to $119,603 (11706) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $118,976 |
| Homeowners | 76.7% |
| Households with kids under 18 | 35.4% |
| Moved in the past year | 9.5% |
| Carrier routes in EDDM2GO's route library | 65 routes, 23,767 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Islip: 11706 ($119,603)
- Most residents: 11706 (68,976 people)
- Highest homeownership: 11751 (83.4% own their home)
- Most households with kids: 11706 (37.5% of households)
- Most new movers: 11751 (10.4% moved in last year)
- Youngest median age: 11706 (36.6 years)
- Highest median home value: 11751 ($563,100)
Every ZIP code in Islip
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11706 | Bay Shore | 68,976 | 19,431 | $119,603 | $494,300 | 75.0% | 37.5% | 9.3% | 51 | 20,145 | 3% of its land |
| 11751 | Islip | 13,726 | 5,040 | $116,559 | $563,100 | 83.4% | 27.1% | 10.4% | 14 | 5,559 | 100% of its land; mailing city |
A ZIP code is listed for Islip when at least 10% of its land lies inside the Islip Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Islip. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Islip.
Counties
- Suffolk County — 108 ZIP codes
Nearby cities sharing these ZIP codes
- Bay Shore — 1 ZIP code
- North Bay Shore — 1 ZIP code
- Baywood — 1 ZIP code
Price a mailing to Islip ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Islip, NY?
- 11706 and 11751. A ZIP code is listed for Islip when at least 10% of its land lies inside the Islip Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Islip.
- What is the population of Islip, NY?
- The Census Bureau counts 17,362 residents inside Islip Census-designated place (ACS 2020–2024). The 2 ZIP codes that serve Islip hold 82,702 residents in all.
- What is the median household income in Islip, NY?
- $120,909 inside Islip Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $116,559 to $119,603.
- Which Islip ZIP code has the highest median household income?
- 11706, at $119,603, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Islip, NY?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 65 carrier routes reaching 23,767 residential and 1,937 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.