At a glance
Reported students
358
NCES CCD 2024–25
Teachers (FTE)
16.82
NCES CCD 2024–25
Student–teacher ratio
21.3:1
Calculated; not a class-size measure
Grades served
06–08
NCES preliminary directory 2025–26
School benchmarks
California middle enrollment
18th percentile
Compared with 1,370 same-level schools reporting enrollment.
District median enrollment
495
Black Diamond Middle: 358 reported students.
State peer staffing position
55th percentile
21.3:1 reported; state peer median 21:1. Ratio is not class size.
Historical enrollment and staffing · CRDC 2021–22
These older figures are kept separate from 2024–25 statistics and benchmarks. Differences between years can reflect changes in enrollment, staffing, or reporting scope.
- Students
- 343
- Teachers (FTE)
- 16.8
- Student–teacher ratio
- 20.4:1
What the reported data says about Black Diamond Middle
Black Diamond Middle is a public middle school serving grades 06–08 in Antioch. It is one of 25 current school records connected to Antioch Unified. NCES reports 358 students for 2024–25.
Among 1,370 middle schools in California with comparable records, this school is smaller than the reported median of 646 students. Its enrollment is at approximately the 18th percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 21.3:1, close to the California median of 21:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The largest reported race and ethnicity groups are Hispanic or Latino (41.9%) and Black (32.7%). English learners represent 16.3% of enrollment. Students served under IDEA represent 15.7%. These figures help families understand who the school serves; they are not rating inputs.
The 2021–22 civil-rights collection reports gifted and talented programming. Program availability changes, so families should confirm the current catalog and participation rules directly with the school.
Questions worth asking Black Diamond Middle
- 1How do the reported 21.3:1 student–teacher ratio and 16.82 teacher FTE translate into actual class sizes by grade?
- 2Which advanced, gifted, career, arts, and computer-science courses are available this year, and how do students qualify?
- 3What counseling support is available today? The school reported 1 counselor FTE in 2021–22.
- 4Does community eligibility provide breakfast and lunch to every enrolled student, and are summer meals available?
Enrollment needs
- English learners
- 16.3%
- Students with disabilities
- 15.7%
- Free/reduced-price lunch
- 81%
- Lunch program
- Yes under Community Eligibility Option (CEO)
Reported support staff
- Counselors (FTE)
- 1
- Nurses (FTE)
- 0
- Psychologists (FTE)
- 0
- Social workers (FTE)
- 0
CRDC 2021–22 full-time-equivalent counts; verify current assignments with the school.
Student demographics
Race and ethnicity share of reported enrollment
- White8.4%
- Hispanic41.9%
- Black32.7%
- Asian8.9%
- American Indian / Alaska Native0.6%
- Native Hawaiian / Pacific Islander1.1%
- Multiracial6.4%
Race/ethnicity: NCES CCD 2024–25. English learner and disability context: CRDC 2021–22. Lunch eligibility: NCES CCD 2024–25. Privacy rules can produce missing values.
Programs reported by the school
Gifted and talented
Offered
CRDC 2021–22: the AP flag records student enrollment; gifted and computer-science fields describe reported programs/classes. Confirm current courses and eligibility with the school.
Other schools in Antioch Unified
Start with campuses at the same school level or with similar reported enrollment.
Antioch Middle
Middle · Grades 06–08
665 reported students
Dallas Ranch Middle
Middle · Grades 06–08
795 reported students
Park Middle
Middle · Grades 06–08
1,055 reported students
Prospects High (Alternative)
Other · Grades KG–12
304 reported students
Belshaw Elementary
Elementary · Grades KG–05
431 reported students
Turner Elementary
Elementary · Grades KG–05
436 reported students