Public toilets and restrooms in Diamond Bar, CA

Diamond Bar has 12 restrooms on the map: 4 open to the public and 8 in businesses for customers. 1 is confirmed free.

Highest-rated first. Updated November 5, 2026. All of California

Public restrooms

• Carlton J. Peterson Park restroom

  Park restroom · No ratings yet

  Diamond Bar, CA

• Pantera Park restroom

  Park restroom · No ratings yet

  Diamond Bar, CA

• Ronald Reagan Park restroom

  Park restroom · No ratings yet

  Diamond Bar, CA

• Sycamore Canyon Park restroom

  Park restroom · No ratings yet

  Diamond Bar, CA

  Open to the public · Free

Customers-only restrooms

Stores, cafés, and restaurants that usually let customers use the restroom. Buy something or ask staff first.

• McDonald's

  Business (ask staff) · No ratings yet

  205 South Diamond Bar Boulevard, Diamond Bar, CA 91765-1606

  Customers only

  Mo-We 05:00-22:00; Th-Su 04:00-22:00

• McDonald's

  Business (ask staff) · No ratings yet

  21095 Golden Springs Road, Diamond Bar, CA 91789

  Customers only

  05:00-23:00

• Starbucks

  Business (ask staff) · No ratings yet

  22438 Golden Springs Drive, Diamond Bar, CA 91765

  Customers only

• Starbucks

  Business (ask staff) · No ratings yet

  21060 Golden Springs Drive, Diamond Bar, CA 91789

  Customers only

  Mo-Fr 05:00-20:30; Sa-Su 05:30-20:30

• Starbucks

  Business (ask staff) · No ratings yet

  747 Grand Avenue, Diamond Bar, CA 91765

  Customers only

• Starbucks

  Business (ask staff) · No ratings yet

  2837 Diamond Bar Boulevard, Diamond Bar, CA 91765

  Customers only

• Target

  Business (ask staff) · No ratings yet

  747 Grand Avenue, Diamond Bar, CA 91765-8400

  Customers only

  08:00-23:00

• Walmart Neighborhood Market

  Business (ask staff) · No ratings yet

  1180 Diamond Bar Boulevard, Diamond Bar, CA 91765

  Customers only

  Mo-Su 06:00-23:00

Nearby cities

Walnut (6) Pomona (3) Rowland Heights (11) West Covina (6) Chino Hills (23) Brea (28) San Dimas (14) Covina (5)