Somerset County ZIP Codes

Somerset County is a county of Maryland.

ZIP codes: 11
Cities & towns: 10
Area codes: 3
Land area: 320 sq mi

Every ZIP code in Somerset County

218xx

The complete list of Somerset County, MD ZIP codes with the city each one delivers to.
ZIP code	City
21817	Crisfield
21821	Deal Island
21824	Ewell
21836	Manokin
21838	Marion Station
21853	Princess Anne
21857	Rehobeth
21866	Tylerton
21867	Upper Fairmount
21871	Westover
21890	Westover

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Somerset County codes above are listed without a column we would have to invent.

Cities and towns in Somerset County

A further 8 places in Somerset County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Somerset County

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

Where Somerset County's ZIP codes sit

Each point is the reference point of one Somerset 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 Somerset 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.