Best Schools in Diamond Bar, California
22 schools · 16 Elementary · 2 Middle · 3 High · 1 Other
Choosing a school in Diamond Bar?
Use this page to compare every school in Diamond Bar by level, neighborhood, and district — and find the right fit, not just the top of the list.
Shortlist starter
Start with these real page-level signals, then use the full table and map below.
Pantera Elementary
Elementary · Pomona Unified. Ranked from real test data; use the map and table below to check address fit.
Maple Hill Elementary
Elementary · Walnut Valley Unified. Ranked from real test data; use the map and table below to check address fit.
Quail Summit Elementary
Elementary · Walnut Valley Unified. Ranked from real test data; use the map and table below to check address fit.
The short answer
The top-rated schools in Diamond Bar for 2026 are Pantera Elementary (8.7/10), Maple Hill Elementary (8.6/10), and Quail Summit Elementary (8.5/10), based on MySchoolScout's analysis of real test data across 14 rated schools. Ratings blend student growth, poverty-adjusted academic achievement, and school environment (plus college readiness for high schools), with equity shown as context, not scored; schools with estimated (proxy) scores are excluded from this ranking.
Schools
22
10 public · 12 private
Avg Score
7.0
out of 10
Median Home
$907,850
home value · ACS
Districts
2
serving the city
Schools
22
10 public · 12 private
Avg Score
7.0
out of 10
Median Home
$907,850
home value · ACS
Districts
2
serving the city
Rates 8.7/10 despite 53% of students being economically disadvantaged. That's about 1.3 points higher than its student-poverty level predicts. Roughly as clean a case of strong results without an affluent-ZIP price tag as you'll find among Diamond Bar schools.
STAAR proficiency rose +8.5 points from 2022 to 2024. That's the biggest jump among Diamond Bar schools across the two most recent comparable testing years.
Top-Rated Schools in Diamond Bar
Ranked by MySchoolScout composite using only schools with real test data (14 of 22). "Value" = points above what student poverty predicts. Estimated (proxy) scores are excluded.
| # | School | Rating |
|---|---|---|
| 1 | Pantera Elementary | 8.7 / 10 |
| 2 | Maple Hill Elementary | 8.6 / 10 |
| 3 | Quail Summit Elementary | 8.5 / 10 |
| 4 | Chaparral Middle | 8.4 / 10 |
| 5 | Diamond Bar High | 8.0 / 10 |
| 6 | Evergreen Elementary | 7.3 / 10 |
| 7 | Armstrong Elementary | 7.1 / 10 |
| 8 | Lorbeer Middle | 6.8 / 10 |
| 9 | Castle Rock Elementary | 6.6 / 10 |
| 10 | Mt Calvary Lutheran School | 6.2 / 10 |
See every school — including those with estimated data — in the full directory below. How we rate schools.
Family Snapshot
At a glance- Avg school rating
- 7.0/10
- Median household income
- $115,240
- Median home value
- $907,850
- Bachelor's degree or higher
- 53%
- Avg commute
- 35 min
- Owner-occupied homes
- 80%
50% of schools rated 7+
Census ACS, ZIPs in this city
Owner-occupied units
Adults 25+
Workers age 16+
Of occupied housing units
How Diamond Bar compares
California rank
#152 of 597
cities by avg. school score
Vs. state average
+0.8
above California avg (6.3)
Median household income
$115k
116% of California median
Schools in this city
14
About Schools in Diamond Bar, California
Diamond Bar, California is home to 22 schools, including 10 public schools and 12 private schools. The city's schools span 16 elementary schools, 2 middle schools, and 3 high schools.
With an average rating of 7.0 out of 10, schools in Diamond Bar perform strongly on the MySchoolScout composite scale, which blends student growth, poverty-adjusted academic achievement, and school environment — plus college readiness for high schools.
The highest-performing school in Diamond Bar is Pantera Elementary with a composite score of 8.7/10, demonstrating strong academic outcomes and school quality metrics.
Diamond Bar is served by 2 school districts: Pomona Unified, Walnut Valley Unified. These districts collectively serve 34,781 students.
Diamond Bar's community shows 53% bachelor's degree attainment with a median household income of $115,240. The poverty rate in the area is 8.9%.
Browse the schools below to compare ratings, test scores, enrollment, and other key metrics. Use the filters to focus on specific school levels or types that match your family's needs.
Elementary Schools
16 schools| # | School | Rating | ||
|---|---|---|---|---|
| 1 | 484 students · Kindergarten–6th | 8.7 | ||
| 2 | 561 students · Kindergarten–5th | 8.6 | ||
| 3 | 718 students · Kindergarten–5th | 8.5 | ||
| 4 | 717 students · Kindergarten–5th | 7.3 | ||
| 5 | 249 students · Kindergarten–6th | 7.1 | ||
| 6 | 691 students · Kindergarten–5th | 6.6 | ||
| 7 | 394 students · Kindergarten–6th | 6.0 | ||
| Private Schools 9 schools Private and public school ratings use different data sources and scoring models. Scores are not directly comparable across school types. | ||||
| 1 | Mt Calvary Lutheran School
Private
154 students · Pre-K–8th | 6.2 | ||
| 2 | Diamond Bar Montessori Academy
Private
30 students · Kindergarten–1st | 5.3 | ||
| 3 | 35 students · Kindergarten–6th | 5.2 | ||
Show all 16 elementary schools in Diamond Bar
Private and public school ratings use different data sources and scoring models, so scores are not directly comparable across school types.
Middle Schools
2 schools| # | School | Rating |
|---|---|---|
| 1 | 1,204 students · 6th–8th | 8.4 |
| 2 | 676 students · 7th–8th | 6.8 |
High Schools
3 schools| # | School | Rating | ||
|---|---|---|---|---|
| 1 | 2,532 students · 9th–12th | 8.0 | ||
| Private Schools 2 schools Private and public school ratings use different data sources and scoring models. Scores are not directly comparable across school types. | ||||
| 1 | Institute of Knowledge
Private
315 students · Kindergarten–10th | Not Rated | ||
| 2 | Prestige Stem Academy
Private
6 students · 3rd–12th | — | ||
Other Schools
1 school| # | School | Rating |
|---|---|---|
| 1 | Guide Academy
Private
38 students · Pre-K–9th | 5.9 |
Schools in Diamond Bar
Diamond Bar, California · 22 schools
Community Demographics
Census ACS 2022 5-Year Estimates across 2 ZIP codes
Median Income
$115,240
Median Home Value
$907,850
Median Rent
$2,632/mo
Population
85,712
College Educated
53%
Homeownership
80%
Avg Commute
35 min
Poverty Rate
8.9%
Community Profile
Diamond Bar has a median household income of $115,240. It is a well-educated community where 53% of adults hold a bachelor's degree or higher. The median home value in the area is $907,850, with a median rent of $2,632/month. The local poverty rate of 8.9% is relatively low. The average commute in the area is 35 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.
Schools by Level
- State
- California
- Elementary
- 16
- Middle
- 2
- High
- 3
- Other
- 1
Resources
Nearby Cities
Other Major Cities in California
Top metros statewide by school count.
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateFrequently Asked Questions
Common questions about schools in Diamond Bar, California
How many schools are in Diamond Bar, California?
Diamond Bar has 22 schools, including 10 public and 12 private schools spanning elementary, middle, and high school levels.
What is the average school rating in Diamond Bar, California?
The average MySchoolScout composite score for schools in Diamond Bar is 7.0 out of 10, built from student growth, poverty-adjusted academic achievement, and school environment — plus college readiness for high schools.
What is the top-ranked school in Diamond Bar, California?
The top-ranked school in Diamond Bar on MySchoolScout is Pantera Elementary with a composite score of 8.7/10.
What is the best elementary school in Diamond Bar, California?
The top-ranked elementary school in Diamond Bar on MySchoolScout is Pantera Elementary with a composite score of 8.7/10.
What is the best middle school in Diamond Bar, California?
The top-ranked middle school in Diamond Bar on MySchoolScout is Chaparral Middle with a composite score of 8.4/10.
What is the best high school in Diamond Bar, California?
The top-ranked high school in Diamond Bar on MySchoolScout is Diamond Bar High with a composite score of 8.0/10.
How many school districts serve Diamond Bar, California?
Diamond Bar is served by 2 school districts: Pomona Unified, Walnut Valley Unified.
What is the education level in Diamond Bar, California?
According to Census data, 53% of adults in Diamond Bar have earned a bachelor's degree or higher.
What is the median income in Diamond Bar, California?
The median household income in Diamond Bar is approximately $115,240 according to Census ACS 2022 estimates.
Are there private schools in Diamond Bar, California?
Yes, Diamond Bar has 12 private schools alongside 10 public schools. The top-rated private school is Mt Calvary Lutheran School with a score of 6.2/10.
What is the student-teacher ratio in Diamond Bar, California?
The average student-teacher ratio across schools in Diamond Bar is 16.6:1. This ratio varies by school, so families should check individual school profiles for specific classroom sizes.
How does MySchoolScout rate schools in Diamond Bar, California?
MySchoolScout rates schools using publicly available data from the NCES Common Core of Data and state education departments. Each school receives a 1-10 composite score built from Student Growth, Poverty-Adjusted Academic Achievement, and School Environment — plus College Readiness for high schools. Weights vary by school level, and equity data is shown for context but not scored.
Related reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
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Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.