Trona Joint Unified
San Bernardino County school performance
Trona Joint Unified is badly underperforming.
Reading and math results average to the 9th percentile among California school districts.
Only 11.4% of students met California's reading standard, and it is trending down slightly.
16.7% of students met California's math standard, but it is trending up.
| Current Reading Proficiency | 11.4% |
| Current Math Proficiency | 16.7% |
| District Reading Rank | 951 / 977 (3rd percentile) |
| District Math Rank | 837 / 977 (14th percentile) |
| Student / Teacher Ratio | 16:1 |
| Spend per Student | $36,071 |
| Schools in District | 2 |
| Student Enrollment | 258 |
| Low-Income Students | 199 (77.1%) |
| English Learners | 6 (2.3%) |
District Website
Great Schools
Niche
Ed-Data
CAASPPTest score trends
Reading fell 8.3 points from last year and fell 2.8 points over the full period. Math fell 2.0 points from last year and rose 5.1 points over the full period.
•Math +5.1 percentage pointsBoard Members
| name | elected | up for re-election |
|---|---|---|
Cathy Heseman School Board President | 2022 | 2026This year! |
Priscilla Benadom Board Clerk | 2022 | 2026This year! |
Jessica Price Board Trustee | N/A | N/A |
Sandy Sprouse Board Trustee | N/A | N/A |
Skylar McCullar Board Trustee | 2022 | 2026This year! |
Expand for details on low-income and english learner performance
Reading Proficiency Scores
Comparison of low-income and English learner groups using district-level CAASPP proficiency data.
Low-Income vs Non-Low-Income
Low-income students trail other students by 12.4 points in reading. It widened over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
Comparison of low-income and English learner groups using district-level CAASPP proficiency data.
Low-Income vs Non-Low-Income
Low-income students trail other students by 8.4 points in math. It widened over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
District School Map
Schools in this district, color-coded by reading proficiency.
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Hover over a school marker to see details
Schools
Understanding this district
How does Trona Joint Unified rank in California?
Trona Joint Unified ranks No. 951 of 977 in reading and No. 837 of 977 in math for 2026. These proficiency rankings compare districts across all district types.
Are results improving across Trona Joint Unified’s schools?
Over 2024–2026, reading proficiency rose at 1 of 2 schools with results covering that full period; math rose at 2 of 2.
Compare school trendsHow do low-income students in Trona Joint Unified compare with other districts?
Low-income reading proficiency is 7.6%, compared with 35.1% at a typical California unified district. In math, it is 14.1%, compared with 23.6%.
See student-group resultsWhich districts should I compare with Trona Joint Unified?
Unified districts in San Bernardino County. Peers have the closest enrollment sizes.
| District | Math | Reading |
|---|---|---|
| Trona Joint UnifiedThis district | 16.7% | 11.4% |
| Baker Valley Unified | 12.3% | 26.1% |
| Needles Unified | 17.6% | 30.5% |
How we compare low-income results
“Typical” is the median across 339 California unified districts with 2026 results, a reported low-income population, and at least 20 low-income tested students in each subject. Each district counts once. This compares proficiency for low-income students, rather than the gap between income groups.
