USPS Post Office Sunnyside Carrier Annex - Sunnyside
770 Custer Ave, 98944 Sunnyside
Today
Today's opening hours
This week's opening hours
Bulk Mail Acceptance
- Monday 9:00 am to 12:00 pm 12:30 pm to 3:00 pm
- Tuesday 9:00 am to 12:00 pm 12:30 pm to 3:00 pm
- Wednesday 9:00 am to 12:00 pm 12:30 pm to 3:00 pm
- Thursday 9:00 am to 12:00 pm 12:30 pm to 3:00 pm
- Friday 9:00 am to 12:00 pm 12:30 pm to 3:00 pm
- Saturday Closed
- Sunday Closed
Other opening hours
Call Referral
- Monday to Friday
- 8:00 am to 12:00 pm, 1:00 pm to 4:00 pm
- Saturday
- 8:00 am to 2:00 pm
- Sunday
- Closed
Carrier Call Referral
- Monday to Friday
- 8:00 am to 12:00 pm, 1:00 pm to 4:00 pm
- Saturday
- 8:00 am to 2:00 pm
- Sunday
- Closed
Pickup Services
- Monday to Saturday
- 9:00 am to 1:00 pm
- Sunday
- Closed
Opening hours updated on 11/07/2026
Report a changeThis Post Office at a glance
Opening hours of USPS Post Office Sunnyside Carrier Annex - Sunnyside: Monday to Friday from 9:00 am to 12:00 pm and from 12:30 pm to 3:00 pm; closed Saturday and Sunday.
- Opening hours a week
- 27h 30m
- Opening hours a week
- Days open, Monday to Friday
- 5/7
- Days open, Monday to Friday
- Earliest opening, Monday to Friday
- 9:00 am
- Earliest opening, Monday to Friday
- Latest closing, Monday to Friday
- 3:00 pm
- Latest closing, Monday to Friday
- Break, Monday to Friday
- 12:00 pm to 12:30 pm
- Break, Monday to Friday
Special days ahead
Public holidays, closures and special opening hours over the next two months.
- Wednesday, November 11 Veterans Day Opening hours not confirmed
- Thursday, November 26 Thanksgiving Day Opening hours not confirmed
- Friday, December 25 Christmas Opening hours not confirmed
- Friday, January 1 New Year’s Day Opening hours not confirmed
Services
Services Available: 5
Parking 1
Contacts 4
Sending from this Post Office
- First-Class Mail from From $0.65 up to Postcards
- Shipping Services from From $7.90 up to USPS Ground Advantage (2–5 days)
Indicative rates subject to change by the postal operator.
- Open
- Closing soon
- Closed
- Opening hours not confirmed
- This address
Practical information
- Type
- Post OfficeA United States Postal Service Post Office: stamps, sending and collecting letters and packages, and the USPS counter services.
- Address
- 770 Custer Ave, 98944 Sunnyside
- State
- Washington
- Official website
- usps.com
Good to know
USPS Post Office Sunnyside Carrier Annex - Sunnyside is in Sunnyside, at 770 Custer Ave. It opens on weekdays only, 5 days a week.
When it is closed, the nearest other offices are USPS Post Office Sunnyside (0.2 mi) and USPS Post Office Outlook (3.9 mi).
The next public holiday is Veterans Day, Wednesday, November 11. Opening hours often change that day: check them before you go.
Frequently asked questions
Is USPS Post Office Sunnyside Carrier Annex - Sunnyside open on Saturday?
No It is closed on Saturday.
Is USPS Post Office Sunnyside Carrier Annex - Sunnyside open on Sunday?
No It is closed on Sunday.
What time does USPS Post Office Sunnyside Carrier Annex - Sunnyside close?
It closes Monday to Friday at 3:00 pm.
Is there a cash machine?
This Post Office does not list a cash machine.