store:
 location:

US Post Office, 301 Main Ave, Sinai, South Dakota, 57061-9998

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


  1. Sinai
    301 Main Ave Sinai SD 57061-9998

    Hours(Opening & Closing Times):
    Mon - Fri 7:45am - 11:00am 1:00pm - 4:15pm Sat 7:45am - 9:45am Sun Closed

    Phone Number: (605) 826-4306

    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 Sinai 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.