store:
 location:

US Post Office, 420 W 4th St, Antioch, California, 94509-9991

Store Hours of Operation, Location & Phone Number for US Post Office


  1. Rivertown
    420 W 4th St Antioch CA 94509-9991

    Hours(Opening & Closing Times):
    Mon - Fri 9:30am - 4:30pm Sat - Sun Closed

    Phone Number: (925) 778-3578

    Customer Service Email or Contact:
    http://faq.usps.com/adaptivedesktop/faq.jsp?ef=USPSFAQ&dest=EmailUs

The map and information below will help you find the closest US Post Office near you. Need to know what time US Post Office in Antioch opens or closes, or whether it's open 24 hours a day? Read below for business times, daylight and evening hours, street address, and more.