Jackson County ZIP Codes

Jackson County is a county of Kansas.

ZIP codes: 9
Cities & towns: 9
Area codes: 1
Land area: 656 sq mi

Every ZIP code in Jackson County

664xx–665xx

The complete list of Jackson County, KS ZIP codes with the city each one delivers to.
ZIP code	City
66416	Circleville
66418	Delia
66419	Denison
66436	Holton
66440	Hoyt
66509	Mayetta
66516	Netawaka
66540	Soldier
66552	Whiting

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Jackson County

Area codes covering Jackson County

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

785 Area code 785

Where Jackson County's ZIP codes sit

Each point is the reference point of one Jackson 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 Jackson 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.