Trona High

· San Bernardino County · Trona Joint Unified
Public San Bernardino County 🏛 Trona Joint Unified → CDS 3667892…
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Most similar nearby schools

Mesquite Continuation High → Independence Charter Academy → Central High (continuation) → Lone Pine High School → Mojave High School → Compare all similar →

No UC admissions data on file for Trona High.

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

Total enrollment (9–12)
121 (2018)105 (2026)
-13.2%
Grade 12 (graduating class)
19 (2018)11 (2026)
-42.1%

If this trend holds (-1.8%/yr, Total enrollment)

At per-pupil funding of $ / student:

Horizon Projected Total enrollment Change Funding impact / yr
1 yr (2027) ~103 -2 $0
3 yr (2029) ~100 -5 $0
5 yr (2031) ~96 -9 $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 San Bernardino County baseline — the demographic tide is moving every CA HS, so a school's gap vs. county is the actionable signal.

Critical
Sharp demand downturn hidden by elite retention.

Trona High's enrollment is shrinking far faster than San Bernardino County (school -42.1% vs. county +0.0%). Stability of 84.2% means every family you keep is one fewer; the leverage is at recruitment, not retention. This is the case the high stability number alone would hide. Chronic absenteeism is also at 39.7% (up +3.6 pts from 2016-17) — engagement and demand are both signaling decline.

-42.1%  school enrollment (2018–2026)
+0.0%  San Bernardino County baseline
-42.1pp  gap vs. county
84.2%  retention (county median 80.5%)
Enrollment — indexed to 100 at 2018
Stability rate by year (raw %)
Stability rate
84.2%
64 of 76 students

12 of 76 students who enrolled at Trona High this year didn't maintain continuous enrollment (15.8% non-stability). Mid-year transfers, dropouts, and other exits are all counted.

San Bernardino County median
80.5% · school is in the 65th percentile of 99 HS
Statewide median
87.2% · in the 39th percentile of 1,688 HS

Stability by student group

Socio. disadvantaged (92) 83.7%
White (70) 81.4%
Hispanic / Latino (41) 87.8%
Students w/ disabilities (33) 75.8%

Nearest peer high schools

Mesquite Continuation High 28.6% Independence Charter Academy 55.8% Central High (continuation) 23.4% Lone Pine High School 87.2% Mojave High School 33.0%

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.

Chronic absent
46.6%
34 of 73 students

Absenteeism is up 10.5 pp since 2016-17. A rising absenteeism trend often precedes formal departure — worth investigating which subgroups are driving it.

San Bernardino County median
26.7% · school is worse than 77% of 97 HS
Statewide median
22.9%
Chronic absenteeism by year (raw %)

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, 2023

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.

ELA — met or exceeded
n = —
7.7%
incl. 0.0% exceeded
Math — met or exceeded
n = —
7.7%
incl. 7.7% exceeded

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

White 59%
Hispanic / Latino 37% +6.8
Black / African Am. 3% -3.3
Two or more 2% -3.5

Program subgroups

Students w/ disabilities 44% -28.4

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 — Trona Joint 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.

Total revenue
$12.6M
+20.5% since FY2017
Per-pupil revenue
$48,830
259 students enrolled
Revenue mix
State: 60.3%
Local: 8.3%
Federal: 31.3%
Instruction share
47.7%
of current spending · $14,787/pupil
Long-term debt
$0.2M
-38.0% since FY2017
Total revenue by year ($M)
Total expenditure by year ($M)

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 Trona Joint 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).

Trona High — Enrollment & Outcomes Snapshot

Public · vs. 10 most similar nearby schools

  • Senior-class enrollment is down 42% (19→11 from 2018 to 2026), trailing the peer-group median of -14%.
  • At its recent rate (-1.8%/yr), enrollment projects to ~100 by 2029 — about 5 fewer students than today.

Enrollment projection

105 students (2026)
~100 projected (2029)
at -1.8%/yr

That's about 5 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
Trona High Public 105 -42%
Peer-group median -14%
Mesquite Continuation High Public 106 +31%
Independence Charter Academy Public 105 -48%
Central High (continuation) Public 95 -16%
Lone Pine High School Public 85 -30%
Mojave High School Public 210 -27%
Goodwill High Public 46 -79%
Boron Junior-Senior High Public 251 -13%
High Desert Premier Academy Public 273 +240%
Rare Earth High (continuation) Public 40 -12%
Calico Continuation High Public 39 +33%

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 →

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