High · Regular · Grades 9 to 12
Diamond Bar High, Diamond Bar, CA
Enrollment and teachers
- Students
- 2,563
- Teachers (FTE)
- 98.0
- Students per teacher
- 26.2
- Grades
- 9 to 12
This school's ratio is about the same as the district figure of 25.3. The California average across schools is 21.9. Ratios count all teachers, including specialists, so they are lower than typical class sizes.
School details
- Address
- 21400 Pathfinder Rd., Diamond Bar, CA 91765
- Phone
- (909)594-1405
- District
- Walnut Valley Unified
- County
- Los Angeles County
- Level
- High
- Type
- Regular
- Status
- Open
- Charter
- No
- Locale
- Suburb: Large
- NCES school ID
- 064128007894
School meals
- Free lunch
- 542
- Reduced-price lunch
- 37
- Free or reduced-price lunch
- 57922.6% of enrollment.
- Direct certification
- 491Students certified through programs such as SNAP, without an application.
- Community Eligibility Provision
- No
Schools in the Community Eligibility Provision (CEP) serve free meals to all students, so their free lunch counts often reflect direct certification or total enrollment. Free and reduced lunch shares are not comparable between CEP and non-CEP schools.
Related schools
Other high schools in Walnut Valley Unified
- Walnut High 2,148 students
- Ron Hockwalt Academies (Continuation) 36 students
We publish official enrollment and staffing data, not ratings or test scores.
Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.