St. Joseph County, located in the state of Indiana, 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. Joseph County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
46613
46628
46680
46595
46536
46561
46552
46546
46550
46616
46660
46563
46506
46556
46617
46601
46626
46554
46517
46530
46614
46615
46624
46544
46545
46619
46637
46573
46574
46634
46635

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

St. Joseph 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. Joseph County County?

There are approximately 31 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in St. Joseph 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.