For banking by telephone, to find an ATM, or to speak to a Star One phone representative for assistance with this website, please call us at 866-543-5202 or 408-543-5202.
Star One Mobile App

Star One Mobile Banking
It's free and secure to use!

Get the Star One Mobile Banking app for your device.
It's free, intuitive, safe and secure to use!

 View
Close
Skip navigation
  1. Home
  2. Contact Us

Contact Us

Convenience, security, and simplicity. Star One provides you with the tools you need to manage your finances easily and worry-free.

Contact us by web or email

Appointments, wait times and lobby sign-in

Easily set up an appointment at any Star One branch.

No appointment? Now you can check wait times at your chosen Star One branch, and use our remote lobby sign-in before you arrive.

Inquire about real-estate loans

Contact us through our online mortgage center.

Send us or receive a secure email (Zixmail)

To send us confidential information, log on to our Secure Email Message Center.

Regular e-mail is unencrypted and not secure; sensitive information should not be sent via that channel. Messages travel across many networks before reaching their final destination, enabling prying eyes to eavesdrop on e-mail messages.

Send us a regular email

Use this non-secure form to send us general questions, feedback or reservations for our educational workshops.

To send confidential information (such as Social Security Numbers, account numbers, financial statements), use our Secure Email Message Center instead.


Star One Branch Locations

Branch hours:

  • Monday, Tuesday, Thursday: 9 AM - 5 PM
  • Wednesday: 10 AM - 5 PM
  • Friday: 9 AM - 6 PM
  • Saturday (Stevens Creek, Blossom Hill and Big Basin branches only): 9 AM - 4 PM

Call Us

Toll-free at (866) 543-5202 or (408) 543-5202

Call-center hours:
Monday-Friday: 7:00 AM-7:00 PM PT
Saturday-Sunday: 9:00 AM-5:00 PM PT
December 24 and other holidays: 9:00 AM-5:00 PM PT
Christmas, New Year's and Thanksgiving: closed

Our Shared Branch call center handles after-hours calls and can assist you with general questions and basic transactions.

Fax: (408) 543-5203
Mailing address: P.O. Box 3643
Sunnyvale, CA 94088-3643

Use our Locator to find ATMs, CO-OP ATMs (including 7-Eleven stores), and Shared Branches.

2019 Holidays—Star One branches will be closed

  • Wednesday, November 27: Day before Thanksgiving
    All branches open regular hours, but Call Center closes at 6:00 pm.
  • Thursday, November 28: Thanksgiving Day
  • Friday, November 29: Thanksgiving Holiday
  • Tuesday, December 24: Day before Christmas Day
  • Wednesday, December 25: Christmas Day