Sunnyside Post Office

713 E Edison Ave, Sunnyside, WA 98944

Contact Numbers

Phone: 509-837-5039
Fax: 509-837-2557
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 6:00pm
Tuesday 6:00am - 6:00pm
Wednesday 6:00am - 6:00pm
Thursday 6:00am - 6:00pm
Friday 6:00am - 6:00pm
Saturday 6:00am - 6:00pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 9:30am
Sunday Closed

Bulk Mail Acceptance Hours

Monday 9:00am - 1:30pm
Tuesday 9:00am - 1:30pm
Wednesday 9:00am - 1:30pm
Thursday 9:00am - 1:30pm
Friday 9:00am - 1:30pm
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
  • Street 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:

Sunnyside Carrier Annex
770 Custer Ave
0.1 mile away

691 Outlook Rd
3.3 miles away

410 B St
4.5 miles away

116 Grandridge Rd
5.0 miles away


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I would like to offer a positive review. However, at this point I am frustrated and disappointed. We have had 4 pkgs delivered to the wrong address in the last couple of months. We have recovered 1 of them. I have spoken to the carrier annex who have told us who got them but it is not up to me to recover them when it is their error! I don’t want to rent a P.O. Box but I don’t know of any other alternative.


Our mail lady keeps tossing our big packages in our yard or driveway. Even in bad weather.we’ve even lost a package because it was left in the driveway or yard. I received an email stating it was delivered but I never got it.

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