Montgomery County ZIP Codes

Montgomery County is a county of Kansas.

ZIP codes: 10
Cities & towns: 10
Area codes: 1
Land area: 644 sq mi

Every ZIP code in Montgomery County

673xx

The complete list of Montgomery County, KS ZIP codes with the city each one delivers to.
ZIP code	City
67301	Independence
67333	Caney
67335	Cherryvale
67337	Coffeyville
67340	Dearing
67344	Elk City
67347	Havana
67351	Liberty
67363	Sycamore
67364	Tyro

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Montgomery County

A further 1 place in Montgomery 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 Montgomery County

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

620 Area code 620

Where Montgomery County's ZIP codes sit

Each point is the reference point of one Montgomery 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 Montgomery 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.