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

Zip code
77833
78933
77474
78940
77452
77835
78954
77418
78944
77473
78950
77426
77485
78931

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

Austin 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 Austin County County?

There are approximately 14 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Austin 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.