| Country | United States (US) |
| UN/LOCODE | XSI |
| Name | Shelter Island |
| Name Without Diacritics | Shelter Island |
| Region | NY |
| Function Code | 1-3--6-- |
| Function | Port, Road, Multi-use Location |
| Status Code | RL (Recognised Location) |
| Date | 307 |
| Location (UN Format) | 4104N 07220W |