Summary:
Fillmore Unified has two high schools serving grades 9–12: Fillmore Senior High and Sierra High. In 2025–26, their academic results were uneven, and math was the clearest shared concern: the schools’ simple average was 4% proficient, compared with 38% statewide, a 34-point shortfall.
Fillmore Senior High leads the two schools in all three reported subjects: it scored 50% in ELA, 6% in math, and 20% in science, versus Sierra High’s 8%, 3%, and 5%. The school-to-school gaps were 43 points in ELA, 4 in math, and 15 in science. Fillmore’s ELA result was close to the state’s 49%, but its math and science results were 32 and 16 points below state results. Sierra was below the state in all three subjects, by 42 points in ELA, 36 in math, and 31 in science. Graduation rates also favor Fillmore: 99% versus 89%; chronic absenteeism was 16% at Fillmore and 51% at Sierra.
The gap from state results widened for both schools’ simple average in every subject between 2024–25 and 2025–26: in math, from 28 to 34 points; in ELA, from 17 to 21; and in science, from 20 to 24. One exception is Sierra’s science score, which rose by 2 points, though it remained far below the state. SchoolDigger rankings also moved downward: Fillmore went from 1,198th of 2,162 schools in 2024–25 to 1,428th of 2,137 in 2025–26, while Sierra went from 1,953rd to 2,012th; their latest percentiles were 33 and 6. For context, in 2024–25, free/reduced lunch eligible students were 71% at Fillmore and 84% at Sierra; student-teacher ratios were 21.5 and 12.8, respectively. Sierra’s enrollment was 64, compared with Fillmore’s 1,007.
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