For banking by telephone, 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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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 RSVPs 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 - 5
  • Wednesday: 10 - 5
  • Friday: 9 - 6
  • Saturday: 9 - 4 (Stevens Creek, Blossom Hill and Big Basin only)

De Anza Branch
10991 N. De Anza Blvd.
Cupertino, CA 95014

2 ATMs, east side of building/24 hours

El Camino Branch
3903 El Camino Real
Palo Alto, CA 94306

2 ATMs, north side of building/24 hours

Blossom Hill Branch
1090 Blossom Hill Rd.
San Jose, CA 95123

2 ATMs, east side of building/24 hours

Stevens Creek Branch
3136 Stevens Creek Blvd.
San Jose, CA 95117

2 ATMs, east side of building/24 hours

Enterprise Way Branch
1080 Enterprise Way, Suite 150
Sunnyvale, CA 94089

2 ATMs, west side of building/24 hours

Big Basin Branch
14411 Big Basin Way
Saratoga, CA 95070

1 ATM, 24 hours
1 ITM (Interactive Teller Machine with live remote teller 7:00 AM-7:00 PM weekdays and 9:00 AM-5:00 PM on weekends, plus 24-hour ATM service)

Administration Building
(ATM only, no teller or branch services)
1306 Bordeaux Drive
Sunnyvale, CA 94089

1 ATM, southeast corner of building/24 hours

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 most holidays: 9:00 AM-5:00 PM PT

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.

2018 Holidays—Star One branches will be closed

  • Monday, December 24: Day before Christmas Day
  • Tuesday, December 25: Christmas Day

2019 Holidays—Star One branches will be closed

  • Tuesday, January 1: New Year's Day
  • Monday, January 21: Martin Luther King Day
  • Monday, February 18: Presidents' Day
  • Monday, May 27: Memorial Day
  • Thursday, July 4: Independence Day
  • Monday, September 2: Labor Day
  • Monday, October 14: Columbus Day
  • Monday, November 11: Veterans Day
  • 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