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
Hispanic38.8%
White9.9%
Asian4.4%
Black30.9%
Other16.0%
GenderFemale 51.3%Male 48.7%
Resources & Access
Enrollment
343
517 below CA avg (~860)
Free/Reduced Lunch
72%
8pp above CA avg (64%)
Student-Teacher Ratio
19:1
2 fewer students per teacher than CA avg
Per-Pupil Spending
$18,467
District avg: $13,277 · CA avg: $14,815 · School-level · CDE ESSA
EL Proficiency (ELPAC)
11.9% Level 4
Share of English Learners reaching full proficiency
Teacher Salary Range
$63,441 – $131,859
District schedule · CA median ~$98K
At Black Diamond Middle in Antioch, 19.4% of low-income students met or exceeded the ELA standard in 2025, compared to 24.7% district-wide and 38.2% statewide. Black Diamond Middle trails its district average for low-income students by 5.3 percentage points in ELA. Other subgroups: Low-Income students (7.3% Math proficient); Hispanic students (23.8% ELA proficient). The largest proficiency gap is 21.6 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 289 students tested.
Equity Gaps
ELA · English Learner−21.6pp
0.0% vs 21.6% overall · n=18
3 more gaps by subject
ELA Exceeded · White−4.3pp
0.0% vs 4.3% overall · n=17
Math · Disabilities−8.0pp
0.0% vs 8.0% overall · n=68
Math Exceeded · Disabilities−3.7pp
0.0% vs 3.7% overall · n=68
Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.
Subgroup Proficiency
Low-Income289 tested
ELA 19.4%·Math 7.3%· -5.3pp vs district
Hispanic149 tested
ELA 23.8%·Math 9.4%· -2.4pp vs district
Black107 tested
ELA 9.3%·Math 1.9%· -9.3pp 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
$115K
$30K above CA median
Median Home Value
$625K
$34K below CA median
Bachelor's+
30%
5pp below CA avg
Whole Child
Teacher experience, college/career readiness, and more. Context only — never part of the Scope Score.
Teacher Experience
10.8 years avg experience
17 teachers · 12% second-year
Teacher Credentials
77% fully credentialed
6.0% on intern/emergency permit
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