Diamond Bar · Los Angeles County
Schools in Diamond Bar
Diamond Bar’s 7 public elementary schools run from the 48th to the 97th percentile among the 5,721 California elementary schools we score (spring 2025 tests).
Diamond Bar’s 7 public elementary schools · 1 dot each
California’s public elementary schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
Diamond Bar’s 7 public elementary schools · 1 dot each
California’s public elementary schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
0Needs Support
1Developing
1Solid
5Strong
Highest in Diamond Bar
Statewide percentile- Maple Hill ElementaryHigh Ceiling · Strong All-Around97thStrong
- Pantera ElementaryHigh Ceiling · Solid Base · Growth Engine96thStrong
- Evergreen ElementaryGrowth Engine · Strong All-Around93rdStrong
Maple Hill and Pantera are 1 percentile apart; treat that as a tie.
Context
The average Diamond Bar elementary school had 10 in 100 students chronically absent (missed 10% or more of school days) in 2024–25; the average California elementary school had 18 in 100.
The other 4 elementary schools
- Quail Summit ElementaryHigh Ceiling · Solid Base92ndStrong
- Castle Rock ElementaryGrowth Engine · Strong All-Around90thStrong
- Armstrong Elementary57thSolid
- Golden Springs Elementary48thDeveloping
Each percentile compares a school with California schools at its own level.
Diamond Bar has one public middle school we score, Chaparral Middle, at the 98th percentile among the 2,177 California middle schools we score (spring 2025 tests).
Diamond Bar’s 1 public middle schools · 1 dot each
California’s public middle schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
Diamond Bar’s 1 public middle schools · 1 dot each
California’s public middle schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
0Needs Support
0Developing
0Solid
1Strong
Middle schools in Diamond Bar
Statewide percentile- Chaparral MiddleHigh Ceiling · Growth Engine · Strong All-Around98thStrong
Diamond Bar has one public high school we score, Diamond Bar High, at the 93rd percentile among the 1,500 California high schools we score (spring 2025 tests).
Diamond Bar’s 1 public high schools · 1 dot each
California’s public high schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
Diamond Bar’s 1 public high schools · 1 dot each
California’s public high schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
0Needs Support
0Developing
0Solid
1Strong
High schools in Diamond Bar
Statewide percentile- Diamond Bar HighSolid Base93rdStrong
6 private schools in Diamond Bar aren’t shown: they don’t take the state tests, so we don’t score them.
See them
- Mt. Calvary Lutheran SchoolPrivate · Lutheran Church–Missouri Synod · grades Pre-K-8 · 154 students
- Guide AcademyPrivate · Nonsectarian · grades Pre-K-9 · 38 students
- St. Christopher-Joseph-Aquinas Academic AcademyPrivate · Roman Catholic · grades Pre-K-6 · 35 students
- Diamond Bar Montessori AcademyPrivate · Nonsectarian · grades Pre-K-1 · 30 students
- Landmark Christian PreschoolPrivate · Christian (no specific denomination) · grades Pre-K-TK · 26 students
- Village Montessori AcademyPrivate · Nonsectarian · grades Pre-K · 11 students
More places to look
School districts
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Before kindergarten
A district outline or ZIP code doesn’t decide which school a child attends. Confirm the school for your address, grade and program with the district. See these schools on the map ›
Questions parents ask
Are the public schools in Diamond Bar good?
Diamond Bar’s 7 public elementary schools run from the 48th to the 97th percentile among the 5,721 California elementary schools we score (spring 2025 tests). By band: 5 Strong, 1 Solid and 1 Developing. Diamond Bar has one public middle school we score, Chaparral Middle, at the 98th percentile among the 2,177 California middle schools we score (spring 2025 tests). By band: 1 Strong. Diamond Bar has one public high school we score, Diamond Bar High, at the 93rd percentile among the 1,500 California high schools we score (spring 2025 tests). By band: 1 Strong. A percentile compares a school with California public schools at the same level that we score; it isn’t a grade. How we score schools.
Which public schools in Diamond Bar rank highest?
Elementary: Maple Hill Elementary, 97th percentile statewide (Strong). Middle: Chaparral Middle, 98th percentile statewide (Strong). High: Diamond Bar High, 93rd percentile statewide (Strong). Each level is ranked separately, and a few percentiles apart is a tie. A rank doesn’t decide fit or whether a child can enroll.
How does chronic absence in Diamond Bar compare with California?
The average Diamond Bar elementary school had 10 in 100 students chronically absent (missed 10% or more of school days) in 2024–25; the average California elementary school had 18 in 100. These are averages of school rates: each school counts once, whatever its size.
Does living in Diamond Bar decide which school my child attends?
No. A city can hold schools from more than one district, and attendance boundaries decide which school serves an address. Confirm the school for your address with the district.
Where do these results come from?
California’s state tests (CAASPP) from spring 2025 and chronic-absence rates for 2024–25, both published by the California Department of Education. Percentiles, bands and Scope Scores are SchoolScope’s calculations, not official state ratings. Private schools don’t take the state tests, so we don’t score them. Methodology and limitations.
Data source: California Department of Education · CAASPP 2024-25 · Methodology
Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.
Download these schools (CSV) · free to use under CC BY 4.0 with attribution · How we score schools