CASTRO VALLEY Post Office

The full address of CASTRO VALLEY Post Office is 20283 SANTA MARIA AVE, CASTRO VALLEY, CA, 94546-9998.

If you have any questions, you can call the USPS customer service hotline, or contact the CASTRO VALLEY post office. The phone number is as below.

USPS Customer Service 1-800-ASK-USPS (800-275-8777)

• ·Phone: 510-581-0159
• ·Fax: 510-581-4074

Here is the CASTRO VALLEY post office information card, including the street address, contact number, and parking information. Please feel free to share this picture with anyone who needs information about the CASTRO VALLEY post office.

What services does the CASTRO VALLEY post office provide? Below is the list of services of the CASTRO VALLEY post office, you can go to the CASTRO VALLEY post office to do the following services, or apply at the USPS website/APP.

What is the service hour at the CASTRO VALLEY post office? The service hour varies for different services, you can find the timetable for the service below. If you need help from staff, make sure to go to the post office during the window service hours.