Chautauqua County ZIP Codes

Chautauqua County is a county of Kansas.

ZIP codes: 5
Cities & towns: 5
Area codes: 1
Land area: 639 sq mi

Every ZIP code in Chautauqua County

670xx–673xx

The complete list of Chautauqua County, KS ZIP codes with the city each one delivers to.
ZIP code	City
67024	Cedar Vale
67334	Chautauqua
67355	Niotaze
67360	Peru
67361	Sedan

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Chautauqua County

Area codes covering Chautauqua 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 Chautauqua County's ZIP codes sit

Each point is the reference point of one Chautauqua 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 Chautauqua 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.