Diamond Bar High
Diamond Bar, CA · Walnut Valley Unified
Regular public school · Grades 9-12 · Suburb, large
81st of 1,528 California high schools statewide · better than 95%· Stable
21400 Pathfinder Rd., Diamond Bar, CA 91765
(909) 594-1405Official website ↗NCES ID 064128007894Directory 2023–24
SchoolRow ranks Diamond Bar High 81st of 1,528 California high schools for 2024–25, based on CAASPP 2024–25 English and Math results — better than 95% of high schools statewide. Its statewide percentile went from 96th in 2015 to 95th in 2025.
Percent meeting or exceeding the state standard, CAASPP 2024–25 · 626 students tested
Racial and ethnic breakdown of 2,532 students (2023–24, NCES) — history since 1987, with comparable seven-category changes from 2010
| Group | Trend | 2010 | 2023 | Change |
|---|---|---|---|---|
| Asian | 68.5% | 69.9% | ▲ 1.4 pts | |
| Hispanic | 14.9% | 17.7% | ▲ 2.8 pts | |
| White | 13.1% | 5.9% | ▼ 7.2 pts | |
| Two or more races | 0.2% | 4.3% | ▲ 4.1 pts | |
| Black | 2.8% | 1.7% | ▼ 1.1 pts | |
| Pacific Islander | 0.4% | 0.5% | ▲ 0.1 pts |
NCES history for this school begins in 1987. Race categories changed by 2010: earlier data combines Asian and Pacific Islander students and does not consistently identify multiracial students. The chart retains that history, while the change table uses 2010 onward.
Typical home value $1.03M in zip 91765 as of 2026-05 · trend since 2000
Data Provided by Zillow Group
Closest same-level schools, with 2024–25 state rank · ▲▼ = points better or worse than Diamond Bar High
- –Ron Hockwalt Academies (Continuation)Walnut Valley Unified · 2 mi awayCompare
- #329John A. Rowland HighRowland Unified · 2.6 mi away329th of 1,528
ELA 66% ▼10 · Math 42% ▼26Compare - #88Walnut HighWalnut Valley Unified · 2.7 mi away88th of 1,528
ELA 79% ▲3 · Math 64% ▼4Compare - –Rowland Unified Community DayRowland Unified · 2.9 mi awayCompare
- #847Nogales HighRowland Unified · 3.3 mi away847th of 1,528
ELA 54% ▼22 · Math 14% ▼54Compare - #1267Santana High (Continuation)Rowland Unified · 4 mi away1,267th of 1,528
ELA 23% ▼53 · Math 4% ▼64Compare - #227Brea Olinda HighBrea-Olinda Unified · 4 mi away227th of 1,528
ELA 69% ▼7 · Math 51% ▼17Compare - –Brea Canyon High (Continuation)Brea-Olinda Unified · 4.1 mi awayCompare
What school district is Diamond Bar High in?
Diamond Bar High is part of the Walnut Valley Unified district in Diamond Bar, California.
Is Diamond Bar High a good school?
SchoolRow ranks Diamond Bar High 81st of 1,528 California high schools (better than 95% statewide) based on 2024–25 test results (CAASPP 2024–25).
What is the racial makeup of Diamond Bar High?
Asian 70%, Hispanic 18%, White 6%, Two or more races 4% (2,532 students, 2023–24).
How much do homes near Diamond Bar High cost?
The typical home value in zip code 91765 is $1.03M as of 2026-05 (Zillow ZHVI).
Sources: state education department data (CAASPP 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.