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

Zip code
15690
16028
16224
15686
16212
15656
15613
16210
16242
16041
16222
16228
16263
16245
15774
16049
16226
16236
15618
16201
15732
16025
16262
16253
15673
15736
16240
16023
16238
16261
15682
15681
16218
16244
16055
16249
16229
16259
16250

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

Armstrong 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 Armstrong County County?

There are approximately 39 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Armstrong 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.