Trinity County mailboxes and post offices

There are 20 United States Postal Service post boxes and offices available to the public in Trinity County. You can use any one of these locations to mail your letter or package via USPS. For additional collection boxes in neighboring communities, see the list of mailboxes in California.

Public Collection Box
26530 Ruth Zenia Rd
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Public Collection Box
10 Mann Rd
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Mailbox in Post Office Lobby
1 State Highway 299 W
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Public Collection Box
1301 Main St
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Public Collection Box
0000 Hwy 3
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Mailbox in Post Office Lobby
3333 Steiner Flat Rd
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Mailbox in Post Office Lobby
4554 Highway 36 W
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