Middle SchoolsGrades 7-8
Black Diamond Middle
Antioch Unified · Contra Costa County · 4730 Sterling Hill Drive, Antioch, CA 94531-7673
(925) 776-5500 · www.antiochschools.net/domain/23
Student Demographics
328 students tested · 2024-25 school year
Ethnicity
Hispanic
142 (43%)African American
99 (30%)White
29 (9%)Multiple Races
23 (7%)Filipino
23 (7%)Asian
8 (2%)Other
6 (2%)Key Indicators
English Learners70 (21%)
Socioeconomically Disadvantaged272 (83%)
Students with Disabilities78 (24%)
Staff & Teachers(2024-25)
358
Enrollment
16.8
Teachers (FTE)
21.3:1
Student-Staff Ratio
2
Administrators (FTE)
4
Avg Class Size*(2023-24)