Colby, KS ZIP Code

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

The ZIP code of Colby, KS is 67701. It is in Thomas County.

Mailing address format for Colby

John Smith
123 Main St
COLBY KS 67701
USA

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

ZIP code	Population	Area
67701	—	450.1 sq mi	Main

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

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What is the ZIP code for Colby, KS?

The main ZIP code for Colby, KS is 67701.

How many ZIP codes does Colby have?

Colby has 1 ZIP code.

What county is Colby, KS in?

Colby is in Thomas County, Kansas.

What time zone is Colby in?

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

What are the coordinates of Colby?

Latitude 39.38333, longitude -101.04596.

Last updated: November 14, 2026