54421 Zip Code Colby Marathon
Today
Aug 27, 2026,
ZIP Code 54421 is located in Colby, Wisconsin, in County Marathon. It serves as an essential reference for accurate mail delivery, this ZIP Code assists identify the accurate postal area for residential and business addresses.
54421 Zip Code – Marathon, Colby, WI
The 54421 zip code serves Marathon. It is a neighborhood in Colby, Wisconsin. This code is important for accurate mail delivery. It can also help you find local amenities such as schools, parks and community events. By using zip codes like 54421 you can explore different neighborhoods, it also shows what makes each area unique.
Demographics of Zip Code 54421
Located in Colby, Wisconsin, zip code 54421 has a specific population and density that reflect the local community.
Finding the Right Zip Code for Colby, Marathon County
If you need to send mail to Colby Marathon county, you can easily find the zip code online or by visiting your local post office.
FAQs
How many digits is the Marathon zip code?
The Marathon zip code in Colby is a five-digit number used to identify this specific area.
Does the Marathon zip code ever change?
Zip codes may change due to postal service updates or administrative reasons. If you are looking for the Marathon zip code always check for the most current information from official postal sources or local post offices.
Which county is zip code 54421 in?
Zip code 54421 covers areas within Marathon county, Wisconsin.