Summary:
JCS - Mountain Oaks District has one listed school, JCS - Mountain Oaks, serving kindergarten through grade 8 with 255 students. In 2025–2026, the school’s proficiency rates were above California’s in every reported subject: 69% in English language arts (ELA), 68% in math and 64% in science, compared with state rates of 49%, 38% and 36%. The most important finding is that the school’s results exceed state rates across all three subjects, with its largest advantage in math: 29 percentage points.
JCS - Mountain Oaks is both the district’s only listed school and its sole local leader; with no second school, there is no local runner-up or school-to-school range. Within the school, grade 6 math stands out: 84% were proficient, 47 points above the grade 6 state rate of 37%. Results vary by grade, however: math ranged from 55% in grade 7 to 84% in grade 6, while grade 7 was still 17 points above its state rate. ELA was the school’s highest overall subject result at 69%, but its state advantage was smaller than in math or science: 20 points in ELA, 29 in math and 28 in science.
Recent subject trends are mixed: from 2024–2025 to 2025–2026, ELA declined by 4 percentage points and math by 2, while science rose by 7. SchoolDigger’s ranking improved over the same broader period, from 1,050th of 5,869 schools (82nd percentile) in 2023–2024 to 790th of 5,804 (86th percentile) in 2025–2026; rankings are a different measure from subject scores. Other context includes a student–teacher ratio of 16.2 and spending of $28,453 per student in 2024–2025, plus 26% free/reduced lunch eligible that year. Chronic absenteeism was 2% at the school in 2025–2026, compared with 18% statewide, a 16-point difference.
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