Audrain County ZIP Codes

Audrain County is a county of Missouri.

ZIP codes: 8
Cities & towns: 8
Area codes: 2
Land area: 692 sq mi

Every ZIP code in Audrain County

633xx–652xx

The complete list of Audrain County, MO ZIP codes with the city each one delivers to.
ZIP code	City
63345	Farber
63352	Laddonia
63382	Vandalia
65232	Benton City
65264	Martinsburg
65265	Mexico
65280	Rush Hill
65285	Thompson

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Audrain County

A further 1 place in Audrain County appears in the postal source without a page of its own; its codes are in the table above and each one links to its own page.

Area codes covering Audrain County

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

Where Audrain County's ZIP codes sit

Each point is the reference point of one Audrain 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 Audrain 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.