Baker County ZIP Codes

Baker County is a county of Oregon.

ZIP codes: 11
Cities & towns: 11
Area codes: 2
Land area: 3,068 sq mi

Every ZIP code in Baker County

978xx–979xx

The complete list of Baker County, OR ZIP codes with the city each one delivers to.
ZIP code	City
97814	Baker City
97819	Bridgeport
97833	Haines
97834	Halfway
97837	Hereford
97840	Oxbow
97870	Richland
97877	Sumpter
97884	Unity
97905	Durkee
97907	Huntington

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Baker County

A further 4 places in Baker 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 Baker County

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

Where Baker County's ZIP codes sit

Each point is the reference point of one Baker 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 Baker 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.