No Scope Score available
California doesn't publicly report per-grade test results when fewer than 11 students are tested in a grade — a privacy protection for small schools. We can't compute a Scope Score without that data.
Community Profile
Context — not part of the Scope ScoreStudent demographics
Hispanic75.3%
White4.3%
Asian7.5%
Black4.4%
Other8.4%
GenderFemale 49.4%Male 50.6%
Resources & Access
Enrollment
676
184 below CA avg (~860)
Free/Reduced Lunch
76%
13pp above CA avg (64%)
Student-Teacher Ratio
23:1
2 more students per teacher than CA avg
Per-Pupil Spending
$19,411
District avg: $15,804 · CA avg: $14,815 · School-level · CDE ESSA
EL Proficiency (ELPAC)
14.6% Level 4
Share of English Learners reaching full proficiency
Teacher Salary Range
$59,841 – $127,299
District schedule · CA median ~$98K
At Lorbeer Middle in Diamond Bar, 43.5% of low-income students met or exceeded the ELA standard in 2025, compared to 34.6% district-wide and 38.2% statewide. Lorbeer Middle outperforms its district average for low-income students by 8.9 percentage points in ELA. Other subgroups: Low-Income students (25.1% Math proficient); Hispanic students (40.9% ELA proficient). The largest proficiency gap is 46.0 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 493 students tested.
Equity Gaps
ELA · English Learner−46.0pp
1.4% vs 47.3% overall · n=57
3 more gaps by subject
ELA Exceeded · English Learner−19.1pp
0.0% vs 19.1% overall · n=57
Math · Disabilities−22.4pp
8.3% vs 30.6% overall · n=97
Math Exceeded · Disabilities−16.4pp
2.0% vs 18.3% overall · n=97
Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.
Subgroup Proficiency
Low-Income495 tested
ELA 43.5%·Math 25.1%· +8.9pp vs district
Hispanic487 tested
ELA 40.9%·Math 21.9%· +6.0pp vs district
Disabilities98 tested
ELA 8.2%·Math 8.2%· -1.2pp vs district
Weighted average across tested grades. Subgroups with fewer than 15 students excluded. Data: CDE CAASPP 2024-25.
Subgroup Growth by Grade
Change in proficiency from lowest tested grade. Shows which groups are gaining ground.
Subgroups with fewer than 10 tested students per grade are not shown.
Funding Breakdown
Neighborhood Context
Median Income
$106K
$21K above CA median
Median Home Value
$840K
$181K above CA median
Bachelor's+
52%
17pp above CA avg
Whole Child
Teacher experience, college/career readiness, and more. Context only — never part of the Scope Score.
Teacher Experience
16.0 years avg experience
29 teachers · 14% first-year
Teacher Credentials
81% fully credentialed
Source: CDE SARC, 2024-25
Community Profile provides context about who attends this school and the resources available. These factors are never part of the Scope Score. Learn why →
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Report a data issueData source: California Department of Education (2025 test year) · How we score · Explore all schools · Blog