Big Horn County ZIP Codes

Big Horn County is a county of Wyoming.

ZIP codes: 12
Cities & towns: 12
Area codes: 1
Land area: 3,137 sq mi

Every ZIP code in Big Horn County

824xx

The complete list of Big Horn County, WY ZIP codes with the city each one delivers to.
ZIP code	City
82410	Basin
82411	Burlington
82412	Byron
82420	Cowley
82421	Deaver
82422	Emblem
82426	Greybull
82428	Hyattville
82431	Lovell
82432	Manderson
82434	Otto
82441	Shell

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Big Horn County

A further 4 places in Big Horn 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 Big Horn County

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

307 Area code 307

Where Big Horn County's ZIP codes sit

Each point is the reference point of one Big Horn 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 Big Horn 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.