Enrollment
205
California · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 063060007821
Black Diamond High (Continuation) — Pittsburg, CA
Federal NCES profile for Black Diamond High (Continuation), including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 32/100.
👥 Class size 49
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 73
📋 Attendance 0
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Pittsburg Unified · California
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
12.8:1
vs 21.6:1 California avg
-41% vs state
Free-lunch eligible
79.7%
vs 55.5% California avg
+44% vs state
Student-teacher ratio in context
How Black Diamond High (Continuation) compares with California and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Black Diamond High (Continuation) reports 205 enrolled students to the National Center for Education Statistics (NCES) alongside 17.0 full-time-equivalent teachers, producing a 12.8:1 student-teacher ratio. That figure sits 41% below the California state mean of 21.6:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 19% lower, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 79.7% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 44% above the California average and 54% above the national baseline. Counselor coverage works out to roughly 137 students per counselor, meeting the American School Counselor Association recommendation of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 100.0% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Pittsburg Unified spends $18,635 per pupil district-wide, above the California average of $18,039 and below the national average of $19,490. Revenue comes 25.7% from local sources (property taxes), 65.3% from the state, and 9.0% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 32/100 (F), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Black Diamond High (Continuation) compares
Cross-validating school-level NCES values against California state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.8:1 | ▼ 41% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 79.7% | ▲ 44% | 55.5% | 51.8% |
| Enrollment | 205 | top 18% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
79.7%
free-lunch eligible
— 44% above the California average of 55.5%
Above the 40% Title I schoolwide threshold — federal funds support the whole school, not individual students.
Staffing depth
12.8:1
students per teacher
— 41% below state mean
Top 6% in California — lower ratio than 94% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
100.0%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$18,635
per pupil, district-wide
— above California avg of $18,039
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.5 FTE
Per 137 students — the combined health-and-guidance staffing load for this school.
Discipline context
8
in-school suspensions + 22 out-of-school
Suspension rate: 3.9 per 100 students. Combined in-school and out-of-school rate: 14.6 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 205 Top 18% in California — larger than 82% of 10,006 state schools
Teachers (FTE) 17.0
Students per teacher 12.8:1 -41% vs state
Free-lunch eligible 79.7% +44% vs state
NCES ID 063060007821
Student demographics
Hispanic or Latino 68.3%
African American 22.4%
Two or More 4.9%
White 2.9%
Asian 1.0%
Native Hawaiian / Pacific Islander 0.5%
Largest group: Hispanic or Latino at 68.3% of enrollment.
Programs & staff
AP program Not offered
Counselors (FTE) 1.5
Students per counselor 137:1
Discipline & special education
Chronically absent 100.0%
In-school suspensions 8
Out-of-school suspensions 22
Funding & spending
District-wide per-pupil expenditure for Pittsburg Unified, which includes Black Diamond High (Continuation).
$18,635
Per student
+3%
vs California
Avg $18,039
-4%
vs U.S.
Avg $19,490
Revenue mix
Local 25.7%
State 65.3%
Federal 9.0%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
Other Schools in This District
- Enrollment
- 3,403
- Students per teacher
- 23.3:1
- Enrollment
- 893
- Students per teacher
- 22.8:1
- Enrollment
- 812
- Students per teacher
- 22.6:1
- Enrollment
- 706
- Students per teacher
- 23.1:1
- Enrollment
- 665
- Students per teacher
- 21.6:1
Similar high schools in Pittsburg
1 comparable high schools (grades 9-12) serving the same city.
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Black Diamond High (Continuation)
How many students attend Black Diamond High (Continuation)?
Black Diamond High (Continuation) has 205 students enrolled. It is a high school in Pittsburg, CA.
What is the student-teacher ratio at Black Diamond High (Continuation)?
The student-teacher ratio at Black Diamond High (Continuation) is 12.8:1, which is 41% lower than the California average of 21.6:1 and 19% lower than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Black Diamond High (Continuation)?
79.7% of students at Black Diamond High (Continuation) are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Black Diamond High (Continuation)?
The largest demographic group at Black Diamond High (Continuation) is Hispanic or Latino at 68.3%. The school serves a diverse student body in Pittsburg, CA.
What is the Resource Investment Index for Black Diamond High (Continuation)?
Black Diamond High (Continuation) has a Resource Investment Index of 32/100 (F) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.