# Diamond Bar High School

> Public school · Diamond Bar. A tuition-free public high school for grades 9 through 12 in Diamond Bar, run by Walnut Valley Unified.
- Ages: 14+
- Price: Free
- Address: 21400 Pathfinder Road, Diamond Bar, CA 91765
- Phone: (909) 594-1405
- On Summerground: https://summerground.com/diamond-bar/diamond-bar-high-school

## Diamond Bar High School (9-12)

Ages 14+ · Free

Diamond Bar High School is a public high school in the Walnut Valley Unified School District at 21400 Pathfinder Road in Diamond Bar, serving grades 9 through 12. The state school directory lists it as a traditional high school rather than an alternative or independent-study school. Tuition is free and admission is by neighborhood attendance area. Its phone number is (909) 594-1405.

- Tuition-free public school.

## About Diamond Bar High School

Diamond Bar High School is a public high school in the Walnut Valley Unified School District, located at 21400 Pathfinder Road in Diamond Bar. The state school directory lists it as a traditional high school serving grades 9 through 12.

Details from California Department of Education school directory, checked October 9, 2026. Confirm prices and dates with the provider before signing up.