Butler County ZIP Codes

Butler County is a county of Kansas.

ZIP codes: 15
Cities & towns: 15
Area codes: 2
Land area: 1,430 sq mi

Every ZIP code in Butler County

668xx–671xx

The complete list of Butler County, KS ZIP codes with the city each one delivers to.
ZIP code	City
66842	Cassoday
67002	Andover
67010	Augusta
67012	Beaumont
67017	Benton
67039	Douglass
67041	Elbing
67042	El Dorado
67072	Latham
67074	Leon
67123	Potwin
67132	Rosalia
67133	Rose Hill
67144	Towanda
67154	Whitewater

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Butler County

A further 2 places in Butler 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 Butler County

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

Where Butler County's ZIP codes sit

Each point is the reference point of one Butler 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 Butler 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.