Custer Post Office

643 Mount Rushmore Rd, Custer, SD 57730

Contact Numbers

Phone: 605-673-4248
Fax: 605-357-4906
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 5:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 9:00am - 4:00pm
Tuesday 9:00am - 4:00pm
Wednesday 9:00am - 4:00pm
Thursday 9:00am - 4:00pm
Friday 9:00am - 4:00pm
Saturday Closed
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Pringle
369 Main St
6.4 miles away

Hill City
150 E Main St
6.8 miles away

Keystone
233 Swanzey St
8.5 miles away

Hot Springs
146 N Chicago St
14.3 miles away

Reviews

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I called the post office in Custer, SD just a couple minutes ago to inquire why we had no rural mail service yesterday, January 3rd, 2022. The phone was answered by Payton and from her tone of voice and attitude, it was quite obvious that taking my call was a pain in her butt. First, she suggested that we probably had no mail coming to us yesterday. When I explained to her there was outgoing mail in the box and the red flag was up and that mail is still there and the flag still up today, she asked if the snow is cleared from in front of our box. When I answered in the affirmative, she very curtly replied, "Well, I can't answer that question. I am not your carrier." She asked for our phone number, which I gave her and she told me she would get back to me when she had an answer. There was never an apology offered and I got the feeling she doesn't care to be at her job. She was VERY unprofessional!
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