Postal reference / United States
02564Siasconset, Massachusetts
ZIP code 02564 is a United States postal code for Siasconset, Massachusetts. Its county association is Nantucket County. The map reference point is at 41.2639, -69.9626.
- State / territory
- Massachusetts
- Recorded place name
- Siasconset
- County association
- Nantucket
- Estimated coordinate
- 41.2639, -69.9626
View on OpenStreetMap - ZIP prefix
- 025 · 28 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 6.069 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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Browse the other 684 ZIP codes recorded for Massachusetts, sorted by code with place and county.
Massachusetts directoryNearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 02584 | Nantucket | MA | Nantucket | 4.4 |
| 02554 | Nantucket | MA | Nantucket | 6.8 |
| 02646 | Harwich Port | MA | Barnstable | 28.6 |
| 02669 | West Chatham | MA | Barnstable | 28.9 |
| 02659 | South Chatham | MA | Barnstable | 28.9 |
| 02639 | Dennis Port | MA | Barnstable | 29.1 |
| 02671 | West Harwich | MA | Barnstable | 29.1 |
| 02633 | Chatham | MA | Barnstable | 29.4 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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