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 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 1:30pm
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 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
  • Street Parking

Visit our Links Page for links to 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:

6817 208th St SW
1.1 miles away

North City
17233 15th Ave NE
1.3 miles away

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

7601 Olympic View Dr
2.0 miles away


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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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