Colby ZIP Code Finder by Area and Number Wisconsin

The Colby zip code is 54421 in Wisconsin helps people find the correct mailing location for homes, businesses, and services in Colby.

Welcome to our complete guide for Colby, Wisconsin ZIP Codes. Whether you're moving to Colby, sending mail, searching for an address, or looking for local postal information, this page provides everything you need to know about the ZIP Codes serving Colby, Wisconsin.

Every Colby ZIP Code is assigned by the United States Postal Service (USPS) to support efficient mail delivery and address identification. In addition to postal services, Colby ZIP Codes are widely used for online shopping, navigation, banking, insurance, healthcare, business operations, and government services.

City	Colby
Zip Code	54421
State	Wisconsin
County	Marathon
Population	3,724
Latitude	44.89866
Longitude	-90.29532
Time Zone	America/Chicago

The Colby Wisconsin zip code is used by USPS for mail delivery, shipping, and address identification across Colby and nearby Wisconsin cities.

Colby Wisconsin is a growing city in Wisconsin, and many people search for the Colby zip code, Colby postal code, Colby WI zip code, and Colby Wisconsin mailing code when sending mail or locating addresses. The zip code in Colby is important for deliveries, online orders, location searches, and business listings in Colby.

If you are searching for the Colby zip code list, Colby WI postal code, Colby Wisconsin city zip code, or Colby mailing zip code, this page helps you quickly find the correct Colby zip code. Many residents, travelers, and businesses use the Colby zip code lookup to confirm the correct Colby mailing address.

The Colby zip code area covers neighborhoods, residential communities, and business locations in Colby WI. Whether you are looking for the Colby city zip code, Colby Wisconsin postal code, Colby WI mailing code, or Colby location zip code, the Colby zip code Wisconsin helps identify the correct postal region in Wisconsin.

People also search for zip codes near Colby, Colby postal codes, Colby WI zip code lookup, Colby address zip code, and Colby Wisconsin USPS zip code to find nearby locations in Wisconsin.

ZIP Codes in Colby

The following ZIP Codes serve Colby, Wisconsin.

ZIP Code	County	Population	Time Zone
54421	Marathon	3,724	America/Chicago

Whether you're searching for a residential, commercial, or mailing address, the ZIP Code list above makes it easy to find the correct postal code for Colby.

About Colby, Wisconsin

Colby is located in Marathon County, Wisconsin, and is served by one or more ZIP Codes assigned by USPS. Residents, businesses, and visitors rely on these ZIP Codes for mail delivery, package shipping, address verification, and location-based services.

Some cities have a single ZIP Code, while larger cities may have multiple ZIP Codes covering different neighborhoods or business districts.

If you're searching for a Colby ZIP Code, this page provides the latest available information to help you find the correct postal code quickly.

Colby ZIP Code Map

The Colby ZIP Code map helps visitors understand the geographic coverage of ZIP Code areas throughout the city.

The map can help you:

Locate neighborhoods
Find nearby ZIP Codes
Explore surrounding communities
Plan travel routes
Understand delivery areas

Find a ZIP Code in Colby

If you need to locate a ZIP Code within Colby, you can search using:

Street address
Neighborhood
Business name
Landmark
USPS mailing address

Using the correct Colby ZIP Code helps improve mail delivery, shipping accuracy, and address verification.

About Living in Colby

Colby, Wisconsin is part of Marathon County and is home to approximately 3,724 residents. The city operates in the America/Chicago time zone and is identified by the geographic coordinates 44.89866 latitude and -90.29532 longitude.

Residents enjoy access to local schools, businesses, public services, healthcare facilities, parks, and transportation networks. Whether you're relocating, visiting, or starting a business, knowing the correct ZIP Code helps simplify everyday tasks.

Common Uses of Colby ZIP Codes

ZIP Codes in Colby are commonly used for:

USPS mail delivery
Package shipping
Online shopping
Address verification
Banking
Insurance
Government services
Emergency services
Navigation
Real estate
Business operations
Delivery planning

Why Colby ZIP Codes Matter

Using the correct Colby ZIP Code offers several benefits.

For Residents

Faster mail delivery
Accurate online orders
Easier address verification
Better navigation

For Businesses

Shipping optimization
Customer management
Delivery planning
Local marketing

Frequently Asked Questions

Colby is served by one or more ZIP Codes listed on this page.

Colby is currently served by 1 ZIP Code. The number of ZIP Codes depends on the size of the city and USPS delivery routes.

Colby is located in Marathon County.

Colby is located in Wisconsin.

The estimated population of Colby is 3,724.

Colby follows the America/Chicago time zone.

Use your street address or browse the ZIP Code list available on this page.

No. Some ZIP Codes may include residential, commercial, government, or PO Box delivery areas.

Using the correct ZIP Code helps improve mail delivery, shipping accuracy, navigation, and address verification.

Official ZIP Code information is maintained by the United States Postal Service (USPS).

Conclusion

Whether you're looking for a mailing address, planning a move, or researching local information, this Colby, Wisconsin ZIP Code guide makes it easy to find the postal information you need. Explore the ZIP Code list, use the map, and browse additional location details to learn more about Colby and its surrounding communities.