Superior Post Office

104 3rd Ave E, Superior, MT 59872

Contact Numbers

Phone: 406-822-4231
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 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 2:15pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 8:30am - 5:00pm
Tuesday 8:30am - 5:00pm
Wednesday 8:30am - 5:00pm
Thursday 8:30am - 5:00pm
Friday 8:30am - 5:00pm
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)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking

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:

5 McLaughlin Creek Rd
8.5 miles away

Saint Regis
330 Mt Highway 135
9.4 miles away

310 W Meany St
10.8 miles away

153 Railroad Ave
18.0 miles away


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I’m confused on why the superior post office is closed in Saturdays? They used to be open from 9:30 to 11am on Saturdays, but now they’re closed on Saturday and Sunday. My husband and I work an hour out of town and have to leave before the post office is open and we don’t get home until long after they’re closed. So having them open for a half day on Saturday mornings, especially during the holiday season, really helped my family. We’re not upset, it’s just very inconvenient and we're confused. I’m having packages sent back because I can’t pick them up on time and that costs money and time. I also can never mail packages out of my own post office, so what good is having the post office in town if I can never use it? Thank you for getting our mail and package's where they need to go, but can you offer a solution for this problem?


The mail carrier in superior Montana is horrible. She’s been notified three times now along with a note that is affixed to the mailbox that states my ex-husband does not live here and he does not receive mail here. We continue to get mail here in his name. She refuses to drop packages at my front door and instead leaves them somewhere around the mailbox instead of taking it back to the post office like she supposed to or delivering it to the door like she supposed to if the gate is open.

* is not a part of, or affiliated with, the official United States Postal Service (USPS).