Enrollment
111
California · 2024-25 NCES data
Other / mixed grade configuration · Trona, CA
Federal NCES profile for Trona High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
The verdict
Trona High earns 42/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools.
Trona High has class sizes smaller than 96% of California schools. Computed live against every California school reporting to NCES.
NCES ID 063984006609 Verify on NCES CCD record →
Enrollment
111
California · 2024-25 NCES data
Teachers (FTE)
11.0
Federal CCD staff survey
Students per teacher
10.1:1
vs 21.5:1 California avg
-53% vs state
Free-lunch eligible
69.8%
vs 55.5% California avg
+26% vs state
How Trona High compares with California and U.S. medians
Smaller classes than state median
10.1:1 - 11.4 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Trona High is a higher-need, small combined-grade school in Trona, California, enrolling 111 students.
Classes run notably small here: at 10.1:1, Trona High is leaner than roughly 96% of California schools and 53% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 69.8% of students eligible for free meals.
Enrollment of 111 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 303 statewide peers matched on enrollment and economic need, it ranks mid-pack at #128.
Its student body is led by White (59%) and Hispanic or Latino (35%) (diversity index 53/100).
Counselor coverage is strong, about 111 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 65.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Trona Joint Unified spends $28,916 per pupil, 75% above the California average, a better-resourced district than most.
Its district draws 29.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 23 in- and out-of-school suspensions were reported for 111 students in the 2021-22 Civil Rights Data Collection.
Its district, Trona Joint Unified, also runs Trona Elementary (147 students).
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Trona High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.1:1 | ▼ 53% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 69.8% | ▲ 26% | 55.5% | 51.7% |
| Enrollment | 111 | top 89% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 58.6% of enrollment.
Simpson diversity index - at 53.1, Trona High is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Trona Joint Unified, which includes Trona High.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Trona Elementary | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Trona High's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Trona High's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Trona High has 111 students enrolled. It is a public school in Trona, CA.
The student-teacher ratio at Trona High is 10.1:1, which is 53% lower than the California average of 21.5:1 and 36% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
69.8% of students at Trona High are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Trona High is White at 58.6% of enrollment, in Trona, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.1/100.
Trona High has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Trona High earns 42/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Trona High, Trona Joint Unified also operates Trona Elementary (147 students). See the Trona Joint Unified district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Trona High, Trona CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/trona-high-ca
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