SINAI, SD Post Office

301 MAIN AVE SINAI, SD 57061 - 9998

Street Parking Available

Phone 605-826-4306

Fax 605-357-4906

TTY 877-889-2457

SINAI, SD Post Office Hours

  • Mon-Sat 10:00am - 12:00pm
  • Sun Closed


SINAI Lobby Hours

  • Mon-Sat 12:01am - 11:59pm
  • Sun Closed

Last Collection Hours

  • Mon-Sat 12:00pm
  • Sun Closed

PO Box Access Hours

  • Mon-Sat 12:01am - 11:59pm
  • Sun Closed

SINAI Pickup Services Hours

  • Mon-Sat 10:00am - 12:00pm
  • Sun Closed

SINAI Post Office On-Site Services

  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • PO Box Online
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • Priority Mail International┬«


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