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.
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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

We understand that there will be hardships. Star One is here to help. We are offering a number of loan assistance options to provide short and long term relief to members affected by COVID-19, including deferred payments plans on our consumer and real estate loans.

Learn more or request payment assistance.

Star One does not offer business loans and does not participate in any Small Business Loan (SBA) programs.

Easily set up an appointment at any Star One branch.

* Face coverings are required when visiting any Star One branch, per Order of the Health Officer of the County of Santa Clara.

In-branch appointments are only available for the following services:

  • Account Maintenance, Account Services, IRA services, Online Services, Notaries and New Memberships.

For Consumer Loan Applications, please go to our Consumer Loans Application page. For Real Estate Applications, please go to our Real Estate Application page.

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.

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

Regular Call Center Hours

  • Monday-Friday: 7 AM-7 PM PT
  • Saturday-Sunday: 9 AM-5 PM PT

Holiday Call Center Hours

  • Day before Thanksgiving: 7 AM-6 PM PT
  • New Year's Eve: 7 AM-5 PM PT
  • Christmas Eve and other holidays: 9 AM-5 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.


2020 Holidays—Star One branches will be closed

  • Monday, October 12: Columbus Day
  • Wednesday, November 11: Veteran's Day
  • Wednesday, November 25: Day before Thanksgiving
  • Thursday, November 26: Thanksgiving Day
  • Friday, November 27: Day after Thanksgiving Day
  • Thursday, December 24: Day before Christmas Day
  • Friday, December 25: Christmas Day