| Official Zip Code Name | Siasconset |
| Zip Code State | Massachusetts |
| Primary County: | Nantucket |
| Area Code | 508/774 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 38 ft. |
| Area | 6.069 Sqm. |
| Coordinates(Y,X) | 41.262300, -69.966800 |