Lorbeer Middle

Middle school·Grades 7-8 Diamond Bar, California·91765
Score
56.4/100
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#578
Among 1,326 California middle schools
#1
In Pomona Unified
#2
In Diamond Bar
Top 44%
In California

Score 56.4/100: better than 56% of California middle schools on 2024-25 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2024-25)

% met or exceeded standard on state tests in California, all students. Colored bars are green when the school is at or above the average for similar California schools.

English language arts
47%
Similar California schools ≈ 49%, better than 57% of them
661 students tested
Math
31%
Similar California schools ≈ 36%, better than 53% of them
666 students tested
Science
28%
Similar California schools ≈ 32%, better than 55% of them
329 students tested
All California schools (ELA / math)
49% / 37%
State average across every school type, 2024-25
All 8 published results by grade and test

As published by California Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 7Smarter Balanced ELA49.2335
English language artsGrade 8Smarter Balanced ELA45.4326
English language artsAll gradesSmarter Balanced ELA47.4661
MathGrade 7Smarter Balanced Math31.3339
MathGrade 8Smarter Balanced Math30.0327
MathAll gradesSmarter Balanced Math30.6666
ScienceGrade 8CAST28.3329
ScienceAll gradesCAST28.3329

School profile

Grades
7-8
Students
676
Type
Middle school
Charter school
No
Program
Regular

Students

Enrollment
676
Typical middle school: 658
Free or reduced-price lunch
76%
Typical middle school: 72%

District and location

School district
City
Los Angeles County

Contact

Address
501 Diamond Bar Blvd.
Diamond Bar, CA 91765
District website
Shared by several schools in the district

"Typical" is the middle (median) middle school in California. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby middle schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

Lorbeer Middle at a glance

Lorbeer Middle is a public middle school in Diamond Bar, California, serving grades 7-8. It is part of the Pomona Unified school district. It has about 676 students (a typical California middle school has 658). About 76% of students are eligible for free or reduced-price lunch, compared with 72% at a typical California middle school, which is useful context when reading test results.

In 2024-25 state tests, 47% in English language arts (similar schools: 49%) and 31% in math (similar schools: 36%) reached the state standard (% met or exceeded standard). On our score, which compares it only with other California middle schools, it scores 56.4 out of 100: better than 56% of them, ranking #578 of 1,326. Its English language arts result rose by 3 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

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Page updated 2026-10-12.