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ZIP code 54421

Colby, WI · Marathon County

About ZIP code 54421

  • ZIP code 54421 is in Colby, Marathon County, Wisconsin.
  • About 3,468 people live in it, which is 19.2 people per square mile.
  • It also reaches into Clark County.
  • Time zone: Central Standard Time.
  • The middle of the ZIP code is at 44.899, -90.295.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Colby, WI

ZIP code 54421 is the post office name for Colby, WI. 1,907 people live in Colby. Typical household income is $50,114. A typical home costs $184,700.

  • Stronger than most towns on: Safety, Short commute and Diversity & community.
  • Weaker than most towns on: Airport access, Pleasant weather for being outdoors and A place that is growing.

See all figures for Colby

Nearby ZIP codes

ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.