Summary:
Rio Oso, California, has one listed school, Browns Elementary, serving kindergarten through grade 8 and enrolling 143 students. With no other listed schools, there is no local school-to-school comparison. In 2025–26, Browns’s all-grade English language arts (ELA) result was nearly level with California’s (49.4% versus 49.3%), while math was 33% versus 38% statewide and science was 24% versus 36%. The main takeaway is that ELA is close to the state result, but math—and especially science—remains lower.
Browns Elementary has a notable split across grades: ELA proficiency was above the state in four of five reported grades, while math was above in two of five. Fourth-grade ELA was its strongest comparison, at 57% versus 46% statewide, or 11 points higher. Sixth-grade math was the largest shortfall: 19% versus 37%, or 18 points lower. These contrasts show why the all-grade figures do not tell the whole story; for example, seventh-grade math was 2 points above the state even though all-grade math was 6 points below.
Recent results improved in math and science but slipped in ELA: from 2024–25 to 2025–26, Browns gained 3 percentage points in math and 5 in science, while ELA fell 2 points. Its ELA result had been 3 points above the state in 2024–25, but the latest result is nearly level; math and science gaps narrowed but remain. SchoolDigger’s ranking rose from the 38th percentile in 2023–24 to the 51st in 2025–26, and it lists the school at 474 of 968 with three stars. Chronic absenteeism was 1% in 2025–26, compared with 18% statewide. Context figures include a 14.3 student-teacher ratio in 2024–25 and 29% free/reduced lunch eligible in 2024–25; these describe the school but do not establish what drives its results.
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