Summary:
Sparta High School is the only high school in Sparta CUSD 140, serving grades 9–12 with 309 students. The available results show a near-state performance in one grade and subject, alongside substantial gaps in most others. Most importantly, all nine reported 2025–2026 test results were below state results; averaged equally, Sparta’s proficiency was 28%, compared with 47% statewide, a gap of about 20 points.
There is no meaningful top-to-bottom comparison among schools because Sparta is the only school in the group. Within its results, grade 9 science stands out as closest to the state: 46.8% proficient, just 0.3 points below 47.1%. Grade 10 science is the weakest relative result, at 19% compared with 48% statewide, a 29-point gap; grade 11 mathematics is also far below the state, by 27 points. Grade 9 science was 28 points higher than grade 10 science, underscoring the differences across grades.
Results changed unevenly from 2024–2025 to 2025–2026: grade 9 science rose 26 points, while grade 10 science fell 7 points and grade 11 mathematics fell 25 points. Across all nine matched results, Sparta’s average declined from 30% to 28%, and its average gap from the state widened from 18 to 20 points. SchoolDigger’s district percentile history also fell, from 41st in 2023–2024 to 19th in 2025–2026; its current listing is 629th of 738, at the 15th percentile with 1 star. As context, Sparta had a student–teacher ratio of 14 and 63% free/reduced lunch eligible in 2024–2025. Its 2025–2026 graduation rate was 83%, versus 90% statewide.
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