Mountlake Terrace Post Office

23210 57th Ave W, Mountlake Terrace, WA 98043

Contact Numbers

Phone: 425-778-0429
Fax: 650-578-4715
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 8:00am - 5:00pm
Tuesday 8:00am - 5:00pm
Wednesday 8:00am - 5:00pm
Thursday 8:00am - 5:00pm
Friday 8:00am - 5:00pm
Saturday 8:00am - 11:00am
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 1:30pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 9:30am - 11:30am
Tuesday 9:30am - 11:30am
Wednesday 9:30am - 11:30am
Thursday 9:30am - 11:30am
Friday 9:30am - 11:30am
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
  • 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:

North City Carrier Annex
24360 Van Ry Blvd
0.4 mile away

6817 208th St SW
1.1 miles away

North City
18336 Aurora Ave N Ste 105
1.7 miles away

Alderwood Manor
3715 196th St SW Ste 101
1.8 miles away


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I recieved a partial envelope missing the item from inside not in a plastic envelope meaning it likely didn't arrive like that and I wasn't even able to call and ask it that's what happened. So not sure if that item was stolen or lost but either way its frustrating to know there isn't anyone I can contact for help.


I JUST WANT MY PACKAGE!!! I don’t understand why my package is being detained, when there’s nothing harmful inside. LITERALLY ONLY PIECES OF PAPERS!!!!!! And I really need those papers so please send my package to me I literally contacted usps and other resources and all of them are useless. And I also contacted the seller BUT SHE CANT DO ANYTHING ABOUT IT EITHER. I just want my package please, send it to me!!!!! I don’t understand why they won’t help. ITS JUST A PACKAGE, and I can’t risk it getting lost!!!!!


They don't deliver advertising. Sometimes the following week after sales are over. It's 5:45 and no delivery. Where are our ballots. Seems corrupt! Poor service at best!


I don't receive my mail twice it send back to the company. I do no why, already I Chang my old address you guys could you fixed my problem? Thank you.


Mail in Mountlake Terrace has been really hectic lately. My apartment has been receiving mail anywhere between 12:00 - 4:00pm for about a month. It used to be here at 10:00am everyday, then eventually became 1:00pm everyday. It would be nice to not have to check the box thrice a day to see if it's come yet. Needs better coordination with routes and drivers.


I received a notice of vacant house at 23107 50th Ave W. Mountlake Terrace 98043 from the Lynnwood Post Office. I am the owner and I have not changed my address, I have recently kicked everyone out of the house. To many problems no one paid anything including the increase in utilities. I find this interesting after Mountlake Terrace Police just discovered I have no one else living at the house. The typical routine of harassment took no time at all to restart.

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