Summary:
The high-school list for Trona Joint Unified contains one school, Trona High, serving grades 7–12 with 111 students; this is a profile of one school, not a comparison across local high schools. The most important finding is that its 2025–2026 proficiency was well below California’s in every reported subject: 5% in ELA versus 49% statewide, 12% in math versus 38%, and 0% in science versus 36%.
Trona High is both the highest- and lowest-scoring school in the list by default, so there is no meaningful school-to-school ranking. Compared with the district, Trona was lower by 6 points in ELA (5% versus 11%), 5 points in math (12% versus 17%), and 2 points in science (0% versus 2%). Its completion measures were more favorable than California’s: the graduation rate was 93% versus 88%, and the dropout rate was 7% versus 8%. Attendance is a counterpoint: chronic absenteeism was 39%, compared with 18% statewide.
Test results declined from 2024–2025 to 2025–2026: proficiency fell 8 points in ELA, 1 point in math, and 12 points in science, while the gaps with California widened by 8, 2, and 15 points, respectively. Grade 8 math was a relative bright spot: 27% were proficient, about 10 points below California for that grade; the grade 12 science result is suppressed. SchoolDigger ranks Trona High at 1,827 of 2,137 schools, in the 15th percentile, with one star for 2025–2026. The school’s 2024–2025 student-teacher ratio was 11.6, and 74% of students were free/reduced lunch eligible that year; these figures provide context, not an explanation for results.
Thank you for your feedback!