Sunnyside Carrier Annex Post Office

770 Custer Ave, Sunnyside, WA 98944

Contact Numbers

Phone: 509-837-8165
Fax: 651-456-6272
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Bulk Mail Acceptance Hours

Monday 9:00am - 12:00pm, 12:30pm - 3:00pm
Tuesday 9:00am - 12:00pm, 12:30pm - 3:00pm
Wednesday 9:00am - 12:00pm, 12:30pm - 3:00pm
Thursday 9:00am - 12:00pm, 12:30pm - 3:00pm
Friday 9:00am - 12:00pm, 12:30pm - 3:00pm
Saturday Closed
Sunday Closed

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

  • Bulk Mail Acceptance
  • Business Line

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
713 E Edison Ave
0.1 mile away

Outlook
691 Outlook Rd
3.3 miles away

Mabton
410 B St
4.6 miles away

Grandview
116 Grandridge Rd
5.1 miles away

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