Trinidad Post Office

357 Main St Trinidad, CA 95570
Phone: 707-677-3117

Parking: Parking Lot Available
Post Office Lobby Hours
Monday 5:00am - 10:00pm
Tuesday 5:00am - 10:00pm
Wednesday 5:00am - 10:00pm
Thursday 5:00am - 10:00pm
Friday 5:00am - 10:00pm
Saturday 5:00am - 10:00pm
Sunday 5:00am - 10:00pm


Trinidad Post Office is a United States Postal Service (USPS) facility in Trinidad, CA. This post office offers a full array of services, including package delivery and first class mail.


Burial Flags
Bulk Mail Acceptance
Carrier Services
Duck Stamps
Greeting Card Services
Money Orders (Domestic)
Money Orders (Inquiry)
Pickup Hold Mail
Pickup Accountable Mail
Pickup Notice Left Mail
PO Boxes
Priority Mail International®

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