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USPS self-service kiosk
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United States Postal Service

2.5
(53 reviews)

Business Details

10799 Merritt St, Castroville, CA
95012, United States
(800) 275-8777
http://usps.com/postoffice

About

Post OfficeShipping ServiceCargo ServicePackaging Supply StoreLogistics ServiceMoney Order ServiceVisa and Passport OfficeUnited States Postal Service
Visit your local Post Office™ at 10799 Merritt 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
10799 Merritt St, Castroville, CA
95012, United States

Hours

Monday9:00 AM - 4:00 PM
Tuesday9:00 AM - 4:00 PM
Wednesday9:00 AM - 4:00 PM
Thursday9:00 AM - 4:00 PM
Friday9:00 AM - 4:00 PM
Saturday10:00 AM - 12:00 PM
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

2.5
53 reviews
5 stars
15
4 stars
5
3 stars
0
2 stars
4
1 star
29
  • JM
    Jackeline Lopez Martinez
    May 22, 2026
    1.0
    Not sure why, but every single experience I’ve had at the Castroville Post Office in the last 15 years has been negative. Customer service matters, and unfortunately there hasn’t been one experience where staff spoke in a respectful or professional tone. Customers deserve to be treated with basic kindness and courtesy but sadly you won’t find that here.
  • DG
    Dalilah Gutierrez
    May 16, 2026
    2.0
    When filling out passport information and you make a mistake DO NOT use whiteout. Clerk had advised to use it. When the process started at another post office it was said "You're NOT supposed to use whiteout."
  • MG
    MPG Gaming
    Apr 21, 2026
    5.0
    Fast easy service good place
  • MC
    Melanie Cota
    Feb 9, 2024
    5.0
    Lived here in Castroville for 55 years and this post office will always be my favorite!
  • DG
    Danica G
    May 4, 2020
    2.0
    The ladies the that work here are not friendly.

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 September 27, 2026Yext Knowledge Graph
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