Islandia, NY ZIP code
The ZIP code for Islandia, New York is 11749. It is in Suffolk County.
- Population in these ZIPs
- 3,600
- Avg. median income
- $116,300population-weighted
- Typical home value
- $645,100population-weighted
- Metro area
- New York-Newark-Jersey City, NY-NJ
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Islandia, NY ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 11749 | 3,600 | $116,313 | $645,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Islandia
- Central Islip 2 mi
- Hauppauge 2 mi
- Bohemia 3 mi
- Ronkonkoma 3 mi
- Nesconset 3 mi
- Islip Terrace 3 mi
- Smithtown 4 mi
- Lake Grove 5 mi
- Holbrook 5 mi
- East Islip 6 mi
- Oakdale 6 mi
- Islip 6 mi
Frequently asked questions
What is the ZIP code for Islandia, NY?
The ZIP code for Islandia, NY is 11749.
What county is Islandia, New York in?
Islandia ZIP codes are in Suffolk County.