Malheur County ZIP Codes

Malheur County is a county of Oregon.

ZIP codes: 13
Cities & towns: 13
Area codes: 2
Land area: 9,888 sq mi

Every ZIP code in Malheur County

979xx

The complete list of Malheur County, OR ZIP codes with the city each one delivers to.
ZIP code	City
97901	Adrian
97902	Arock
97903	Brogan
97906	Harper
97908	Ironside
97909	Jamieson
97910	Jordan Valley
97911	Juntura
97913	Nyssa
97914	Ontario
97917	Riverside
97918	Vale
97920	Westfall

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Malheur County

A further 8 places in Malheur 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 Malheur County

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

Where Malheur County's ZIP codes sit

Each point is the reference point of one Malheur 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 Malheur 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.