Zip Codes in Humboldt County, California

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

Zip code
95540
95560
95550
95563
95501
95524
95528
95565
95518
95521
95570
95526
95546
95589
95564
95547
95559
95542
95551
95514
95503
95519
95536
95511
95502
95555
95571
95545
95556
95562
95558
95549
95587
95573
95537
95525
95554
95568
95569
95534
95553

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Humboldt 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 Humboldt County County?

There are approximately 41 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Humboldt 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.