St. Croix County, located in the state of Wisconsin, contains a range of ZIP codes that are essential for mail delivery, demographics, mapping, and regional planning. Below is a complete list of ZIP codes associated with this county.

These ZIP codes help identify specific areas and communities within the county, ranging from small towns and villages to broader rural stretches. Whether you’re moving to St. Croix County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
54028
54749
54027
54751
54023
54007
54015
54082
54013
54025
54005
54026
54002
54016
54017
54734
54767
54022
54020

To know more about St. Croix County, click the button below:

St. Croix County Information

Use this tool to find your area details by using zip code.

ZIP Code to County

Note: Some ZIP codes may span across county borders and may be listed under more than one county. This is common in rural or low-population areas where ZIP code regions are broader.

Source: Data compiled from official county records, USPS ZIP code data, and the United States Census Bureau.

Frequently Asked Questions

How many ZIP codes are in St. Croix County County?

There are approximately 19 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in St. Croix County overlap with other counties?

Yes, some ZIP codes may span more than one county. This is especially common in less populated or rural areas.