Islandia zipcode
| City | Islandia |
| ZIP Code | 11749 |
| Type | Standard |
| State Code | NY |
| State | New York |
ZIP code of Islandia is 11749. This place is located in New York state in US. To send any postal service to Islandia, you must use 11749 zipcode.
The ZIP code 11749 is also used with 3 more city names of New York.
- Central Islip, NY
- Hauppauge, NY
- Ronkonkoma, NY