United States Postal Service Booth

Stamped Envelopes

Find the United States Postal Service Booth in Building A

Each year the United States Postal Service sets up a temporary, real working post office at the California State Fair. Stop by to purchase a commemorative Fair post card! The USPS booth is across from the Cinnamon Roll Stand.


Mondays – Thursdays: 11 am to 7 pm

Fridays – Sundays: 10 am to 7 pm

Mail Box

Services Offered

  • Commemorative Cancellations Stamps: Stop by the booth daily to send a post card or letter through the mail which will be stamped with an official California State Fair Station cancellation stamp. There is a new design each day. It’s a great way to collect fair memories!
  • Packaging Services: Ship that exciting new fair purchase to yourself and go hands-free while you enjoy the California State Fair.
  • Shop Collectables: For the philatelist in us all! Shop a variety of U.S. Postal Service collectables such as framed stamp sets, t-shirts, custom bags and more.
  • Postage Stamps: Shop for fun U.S. Postage Stamps in a wide variety of designs and themes.
  • Money Orders: Send payments securely through the mail.