Adair County ZIP Codes

Adair County is a county of Missouri.

ZIP codes: 5
Cities & towns: 5
Area codes: 1
Land area: 567 sq mi

Every ZIP code in Adair County

635xx

The complete list of Adair County, MO ZIP codes with the city each one delivers to.
ZIP code	City
63501	Kirksville
63533	Brashear
63540	Gibbs
63546	Greentop
63559	Novinger

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Adair County

Area codes covering Adair County

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

660 Area code 660

Where Adair County's ZIP codes sit

Each point is the reference point of one Adair 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 Adair 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.