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

Zip code
50206
50632
50078
50239
50120
50148
50621
50173
50051
50158
50141
50609
50234
50247
50162
50635
50005
50142
50055
50258
50028
50106

To know more about Marshall County, click the button below:

Marshall 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 Marshall County County?

There are approximately 22 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Marshall 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.