Dukes County ZIP Codes

Dukes County is a county of Massachusetts.

ZIP codes: 7
Cities & towns: 7
Area codes: 2
Land area: 103 sq mi

Every ZIP code in Dukes County

025xx–027xx

The complete list of Dukes County, MA ZIP codes with the city each one delivers to.
ZIP code	City
02535	Chilmark
02539	Edgartown
02552	Menemsha
02557	Oak Bluffs
02568	Vineyard Haven
02575	West Tisbury
02713	Cuttyhunk

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Dukes County codes above are listed without a column we would have to invent.

Area codes covering Dukes County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

Where Dukes County's ZIP codes sit

Each point is the reference point of one Dukes County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope every ZIP code recorded in Dukes County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.