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Alton Kansas ZIP Codes

Alton holds a single ZIP code.

Every ZIP code in Alton

The complete list of Alton, Kansas ZIP codes with the county each falls in.
ZIP codeCounty
67623Osborne County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Scope every ZIP code recorded for Alton. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Alton ZIP code begins 676. Those first three digits identify the sectional center facility that processes mail for this part of Kansas. Statewide that range covers 45 ZIP codes, so Alton accounts for 2% of it.

Every Kansas ZIP prefix and the region it covers →

Area codes covering Alton

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Alton occupies.

Alton Kansas area codes in full →

Where Alton's ZIP codes sit

Each point is one Alton ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Alton

The closest places to Alton with their own ZIP code list, nearest first.
CityDistanceZIP codes
Woodston Kansas ZIP codes8.0 mi1 ZIP code
Cedar Kansas ZIP codes13 mi1 ZIP code
Osborne Kansas ZIP codes13 mi1 ZIP code
Gaylord Kansas ZIP codes14 mi1 ZIP code
Portis Kansas ZIP codes15 mi1 ZIP code
Kirwin Kansas ZIP codes17 mi1 ZIP code
Stockton Kansas ZIP codes18 mi1 ZIP code
Natoma Kansas ZIP codes20 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.