Alton, KS ZIP Code

ZIP code, county, time zone and coordinates of Alton, Kansas

The ZIP code of Alton, KS is 67623. It is in Osborne County.

Mailing address format for Alton

John Smith
123 Main St
ALTON KS 67623
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

ZIP code	Population	Area
67623	—	170.9 sq mi	Main

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

Tap a place on the map to see it in Street View below. Map: © OpenStreetMap contributors.

Loading Street View…

Drag to look around. Tap any place on the map above, or the "Street View" button on a card, to jump there.

What is the ZIP code for Alton, KS?

The main ZIP code for Alton, KS is 67623.

How many ZIP codes does Alton have?

Alton has 1 ZIP code.

What county is Alton, KS in?

Alton is in Osborne County, Kansas.

What time zone is Alton in?

Alton is in the America/Chicago time zone (CST, UTC-06:00 right now).

What are the coordinates of Alton?

Latitude 39.46780, longitude -98.94864.

Last updated: November 14, 2026