Black Diamond High (continuation)
📄 Shareable scorecard →Compare with peers
Most similar nearby schools
Live Oak High (continuation) → Bidwell Continuation High → Prospects High (alternative) → Olympic Continuation High → Independence High → Compare all similar →No UC admissions data on file for Black Diamond High (continuation).
This school doesn't appear in UCOP's source-school records (it may send few or no applicants to UC). Its enrollment trend and similar-school comparison are still below.
Enrollment trend & projection
If this trend holds (-2.7%/yr, Total enrollment)
At per-pupil funding of $ / student:
| Horizon | Projected Total enrollment | Change | Funding impact / yr |
|---|---|---|---|
| 1 yr (2027) | ~173 | -5 | $0 |
| 3 yr (2029) | ~164 | -14 | $0 |
| 5 yr (2031) | ~155 | -23 | $0 |
Straight-line extrapolation of the recent annual rate — a what-if, not a forecast of intent. Default = California's LCFF base grant for grades 9–12 ($12,423/ADA). Edit the figure to match your school.
Enrollment stability & demand — 2024-25
Two complementary signals: retention (do students stay once enrolled?) and demand (are families choosing the school?). Read against the Contra Costa County baseline — the demographic tide is moving every CA HS, so a school's gap vs. county is the actionable signal.
Enrollment -33.8% vs. county -3.2% AND stability (37.2%) below the county median. Recruitment and retention both under pressure — likely a foundational rather than tactical problem. Chronic absenteeism is also at 83.2% (up +6.8 pts from 2016-17) — engagement and demand are both signaling decline.
194 of 309 students who enrolled at Black Diamond High (continuation) this year didn't maintain continuous enrollment (62.8% non-stability). Mid-year transfers, dropouts, and other exits are all counted.
Stability by student group
Nearest peer high schools
Source: California Department of Education, Stability Rate 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 cumulative enrollees so by-design-high-churn continuation schools don't dominate the bottom of the distribution. Cumulative enrollment counts every student on the rolls during the year, so it can exceed peak-day enrollment.
Chronic absenteeism — 2024-25
Share of students missing 10% or more of expected attendance — the leading indicator that often precedes the demand decline shown above. Families disengaging tend to raise absenteeism first, then formally leave. Basis: grades 9–12.
Absenteeism is up 6.8 pp since 2016-17. A rising absenteeism trend often precedes formal departure — worth investigating which subgroups are driving it.
Source: California Department of Education, Chronic Absenteeism 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 eligible students. CDE didn't publish a usable 2019-20 file (COVID).
SBAC academic outcomes — grade 11, 2025
Share of grade-11 students meeting or exceeding the California standard on Smarter Balanced ELA and Math. This is the academic-readiness signal that pairs with UC Reach (post-grad outcomes), stability (retention), and absenteeism (engagement). Note: statewide median Math is only ~20% — a school at 20% isn't an outlier; one at 45%+ genuinely is.
Source: California Assessment of Student Performance and Progress (CAASPP) Smarter Balanced research files. Benchmarks limited to non-virtual public & charter HS with ≥30 tested students.
Student composition — 2025-26
HS grades 9–12 racial/ethnic composition and program subgroups, from CDE Census Day Enrollment. Two-year shift shown when ≥1 pt — surfaces how the community served has changed since 2023-24.
Race / ethnicity
Program subgroups
Source: California Department of Education, Census Day Enrollment 2025-26 (HS grades 9–12). Δ shown when shift is ≥1 pt since 2023-24. Categories below 0.5% omitted.
District financial profile — Pittsburg Unified (FY2020)
From 4 years of NCES F-33 filings (the federally-mandated district finance survey). Public schools don't have their own books — the district does. These figures show the financial scale, revenue dependence, instruction-vs-overhead mix, and long-term debt that shape what a school can sustain.
Local: 23.9%
Federal: 12.2%
Source: NCES F-33 Annual Survey of School System Finances (Urban Institute Education Data API). Latest year currently published: FY2020. F-33 is a district-level federal filing — it reflects the Pittsburg Unified as a whole, not this individual school's books. Revenue mix shows where the district's dollars come from (state aid dominates in CA via LCFF). Instruction share is current expenditure on instruction ÷ total current expenditure (national benchmark ~60%). Long-term debt is end-of-year outstanding (mostly facilities bonds).
Black Diamond High (continuation) — Enrollment & Outcomes Snapshot
Public · vs. 10 most similar nearby schools
- ▸Senior-class enrollment is down 34% (145→96 from 2018 to 2026), trailing the peer-group median of -6%.
- ▸At its recent rate (-2.7%/yr), enrollment projects to ~164 by 2029 — about 14 fewer students than today.
Enrollment projection
That's about 14 fewer students. At per-student funding of $ per student, that's roughly $0 in annual state funding at risk.
Default = California's LCFF base grant for grades 9–12 ($12,423 per ADA) — adjust to your district's actual per-pupil figure. Projection extrapolates the recent annual rate — not a forecast of intent.
Your school vs. its 10 most similar nearby schools
| School | Type | Size | UC Reach | Enroll. trend |
|---|---|---|---|---|
| Black Diamond High (continuation) | Public | 178 | — | -34% |
| Peer-group median | 6.9% | -6% | ||
| Live Oak High (continuation) | Public | 155 | — | +20% |
| Bidwell Continuation High | Public | 147 | — | -14% |
| Prospects High (alternative) | Public | 271 | — | -30% |
| Olympic Continuation High | Public | 221 | — | -7% |
| Independence High | Public | 147 | — | -56% |
| La Paloma High (continuation) | Public | 144 | — | -5% |
| Golden Gate Community School | Public | 74 | — | -38% |
| Contra Costa School Of Performing Arts | Public | 285 | — | +44% |
| Matt Garcia Career And College Academy | Public | 203 | — | +40% |
| Griffin Academy High School | Public | 168 | 6.9% | +9% |
UC Reach = top-6 UC admits ÷ senior class (can exceed 100% when students are admitted to multiple campuses). Enrollment trend = first-to-latest grade-12 change on file. Similar schools matched on proximity, size, type. Methodology →