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

Easily set up an appointment at any Star One branch.

  • Do you have questions regarding account servicing or consumer/real-estate loans? Our new Phone Branch is here to help! You can make a convenient phone appointment to obtain answers to your questions without visiting a branch.
  • If you prefer to come into a branch, appointments are recommended for the following services: New Memberships, Consumer Loan Applications, Real Estate Applications, Account Servicing, Notary, and IRA requests.
  • Masks are required in Santa Clara County regardless of vaccination status. We thank you for your cooperation!

For your convenience, many of these services are available on our website. For Consumer Loan Applications, please go to our Consumer Loans Application page. For Real Estate Applications, please go to our Real Estate Application page. For New Memberships, please go to our New Membership 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:

  • Masks are required in Santa Clara County regardless of vaccination status. We thank you for your cooperation!
  • 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.


2021 Holidays—Star One branches will be closed

  • Thursday, November 11: Veterans Day
  • Thursday, November 25: Thanksgiving Day
  • Friday, November 26: Day after Thanksgiving Day
  • Friday, December 24: Christmas Eve
  • Saturday, December 25: Christmas Day

Scam and Fraud Alert

Several Star One members reported receiving a phone call or text from a person claiming to be from Star One's fraud department with a caller ID reflecting 866-543-5202.

The caller is impersonating a Star One employee to gain your trust with the goal of getting access to your account.

The caller may try to reassure you that it's OK to share your information—please hang up, it's not OK, EVER!