Trinity County California is covered by a total of 15 ZIP Codes. There are 5 ZIP Codes in Trinity County that extend into adjacent counties (Humboldt County, Mendocino County, Shasta County, and Tehama County). Of the ZIP codes within or partially within Trinity County there are 11 Standard ZIP Codes and 3 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Trinity County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Bridgeville | Standard | |||
| Burnt Ranch | Standard | |||
| Garberville | Standard | |||
| Mad River | Standard | |||
| Salyer | PO Box | |||
| Zenia | Standard | |||
| Big Bar | Standard | |||
| Douglas City | Standard | |||
| Hayfork | Standard | |||
| Hyampom | PO Box | |||
| Junction City | Standard | |||
| Lewiston | Standard | |||
| Platina | Standard | |||
| Trinity Center | Standard | |||
| Weaverville | PO Box |