Zip Code 02557 — Oak Bluffs, MA
02557 is a ZIP Code associated with Oak Bluffs, MA, located within Dukes. 02557 ranks #5 out of 7 ZIP codes in Dukes County by population (and #456 out of 539 in MA). The area supports an estimated population of 1,250 residents across Data Pending housing units, with a population density of 149.0 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (41.442180, -70.566480)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 02557 |
| Primary City | Oak Bluffs |
| State / Province | MA |
| County | Dukes |
| Total Population | 1,250 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 149.0 people/sq mi |
| Timezone | America/New_York |
How 02557 Compares
| Metric | ZIP 02557 | Dukes County | MA State Average |
|---|
| Population | 1,250 | 21,672 (Total) | 7,043,978 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 149.0 /sq mi | -- | -- |
| County Pop Rank | #5 of 7 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →