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

Zip code
98270
98213
98037
98021
98291
98019
98087
98296
98223
98272
98282
98287
98294
98011
98275
98290
98271
98206
98207
98258
98204
98020
98082
98046
98072
98203
98043
98012
98077
98251
98241
98177
98208
98028
98292
98252
98201
98036
98026
98259
98293
98256

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

Snohomish 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 Snohomish County County?

There are approximately 42 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Snohomish 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.