Nantucket County, Massachusetts ZIP codes
3 ZIP codes are in Nantucket County. It's part of the Nantucket, MA micro area.
- ZIP codes
- 3
- Population in these ZIPs
- 14,483
- Avg. median income
- $140,900population-weighted
- Cities & towns
- 2
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ZIP codes in Nantucket County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 02554 | Nantucket | 14,212 | $140,938 | $3,185,200 |
| 02564 | Siasconset | 255 | — | $1,652,200 |
| 02584 | Nantucket | 16 | — | — |
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 and towns in Nantucket County
Nearby counties
Frequently asked questions
How many ZIP codes are in Nantucket County, Massachusetts?
3 ZIP codes are mainly in Nantucket County.
What cities are in Nantucket County?
ZIP codes in Nantucket County use the city names Nantucket and Siasconset.
What metro area is Nantucket County in?
Nantucket County is part of the Nantucket, MA micropolitan statistical area.