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

Zip code
83642
83705
83707
83729
83641
83669
83704
83702
83687
83724
83680
83717
83720
83708
83712
83713
83715
83728
83719
83634
83646
83701
83709
83703
83714
83711
83616
83706
83716
83725
83735

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

Ada 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 Ada County County?

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

Do ZIP codes in Ada 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.