Clarkston Post Office

949 6th St, Clarkston, WA 99403

Contact Numbers

Phone: 509-758-7031
Fax: 509-758-0572
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 4:00am - 11:59pm
Tuesday 4:00am - 11:59pm
Wednesday 4:00am - 11:59pm
Thursday 4:00am - 11:59pm
Friday 4:00am - 11:59pm
Saturday 4:00am - 11:59pm
Sunday 4:00am - 11:59pm

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 3:30pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 8:00am - 3:30pm
Tuesday 8:00am - 3:30pm
Wednesday 8:00am - 3:30pm
Thursday 8:00am - 3:30pm
Friday 8:00am - 3:30pm
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)
  • 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:

1613 Idaho St
1.5 miles away

Lewiston 2
1613 Idaho St
1.5 miles away

121 2nd St
2.9 miles away

117 Montgomery St
5.4 miles away


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I am very unhappy with the way we receive our mail! It is 7:30 P.M. and the mail is not here as of 7:00 P.M. I believe you should make our area two separate runs. I believe the mail carriers that have this route are very good but it is to large an area for them to cover on their own. I live on Clemans Road but feel that they have additional routes they are running beside this route. Please consider two routes for this area.


I am very dissatisfied with the postal service in my area, twice now I received a notice that I need to pick up package because it said delivery attempted. Well I went down this time to pick up the package and it was still at the Lewiston Idaho office, (I live in Clarkston Wa. across the border), and it was not there, that was Tues. Jan 3. We new to go to the post office because our online tracking info already had the info of attempted delivery on there. The lady at the Clarkston Post Office said the supervisor made the comment that the package was to heavy to lift (this was a package of greenies dog treats 1lb). When I got home from my attempt to pick up but couldn't I found the mail finally delivered with the notice that they attempted. This is the second time in the last month, how can you attempt to deliver something if you don't have it to begin with? I have been handicapped these last months do to surgery and have been home both times so I hope you understand my frustration. Hope you can fix Dennis Lebold

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