Major County ZIP Codes

Major County is a county of Oklahoma.

ZIP codes: 7
Cities & towns: 7
Area codes: 1
Land area: 955 sq mi

Every ZIP code in Major County

737xx–738xx

The complete list of Major County, OK ZIP codes with the city each one delivers to.
ZIP code	City
73718	Ames
73729	Cleo Springs
73737	Fairview
73747	Isabella
73760	Meno
73768	Ringwood
73838	Chester

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Major County

A further 2 places in Major 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 Major County

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

580 Area code 580

Where Major County's ZIP codes sit

Each point is the reference point of one Major 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 Major 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.