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USPS self-service kiosk
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United States Postal Service

3.8
(35 reviews)

Business Details

25228 Baker St, Black Diamond, WA
98010, United States
(800) 275-8777
http://usps.com/postoffice

About

Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 25228 Baker St to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office™ boxes, passports, gift cards, and more

Location

United States Postal Service
25228 Baker St, Black Diamond, WA
98010, United States

Hours

Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
SaturdayClosed
SundayClosed

Products & Services

1 list · 5 items

USPS Services

5 items

Buy postage
Get information about USPS® products and services
Weigh and classify postage of envelopes and parcels
Change of Address (COA) service
Buy or cash Postal money orders

Reviews

3.8
35 reviews
5 stars
23
4 stars
1
3 stars
1
2 stars
0
1 star
10
  • EM
    Erick Machuca
    Aug 26, 2026
    5.0
    The best experience service in this place around the king county.!! The women who working here are very kind all time.!!
  • ES
    EverHeat Solutions
    Jul 23, 2026
    5.0
    I had an excellent experience with Julie at the Black Diamond Post Office while applying for my child’s passport. She was incredibly kind, patient, and professional throughout the entire process. She carefully explained every step, made sure all of our documents were in order, and helped everything go smoothly. Applying for a child’s passport can be stressful, but Julie made it easy and pleasant. Thank you for your outstanding customer service and dedication. She is a great asset to the USPS, and I truly appreciate all of her help. Highly recommended!
  • BD
    Bryant Danks
    Apr 3, 2024
    1.0
    Waited 30 mins on hold and then hung up on after.
  • NW
    Nicole Weber
    Feb 20, 2024
    1.0
    The woman who answered the phone at this location absolutely rude. I hope she find her happy place soon or stops working with people.

Frequently Asked Questions About United States Postal Service

Can I get a passport application at this Post Office?

Yes, Thousands of Post Offices™ accept first-time passport applications for the U.S. Department of State. Most of those locations can also take your passport photo. Please complete and print your passport application form before you apply.

Is an appointment needed for passport services?

Most Post Offices that offer passport services have set hours, and you'll need to schedule an appointment using our online scheduler. We also offer limited Passport walk-in hours at select locations.

Brand Certified Facts from United States Postal Service

This information is certified by United States Postal Service and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified October 11, 2026Yext Knowledge Graph
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