Summary:
Riverdale School District has one listed school, Riverdale School, serving prekindergarten through grade 8 and enrolling 273 students. Its latest results show a clear subject-by-subject contrast: in 2025–2026, the school’s average proficiency was above the state average in English language arts (ELA) and mathematics, but below it in science. ELA was the broadest strength, with Riverdale above the state in all six tested grades and an average advantage of 16 percentage points.
There is no school-to-school leader or trailer because Riverdale is the only school in the list. Within the school, grade 6 mathematics was a standout: 78% were proficient, compared with 40% statewide, a 37-point advantage. Algebra I End of Course results were also strong, at 64% versus 40% statewide, 24 points higher. The weaker results were in science: grade 5 was 14% versus 27% statewide, and grade 8 was 16% versus 19%. Mathematics varies sharply by grade, too: grade 7 was 27% proficient versus 38% statewide, despite the strong grade 6 result.
Results shifted unevenly between 2024–2025 and 2025–2026. Riverdale’s average ELA advantage over the state grew from 13 to 16 points, while its mathematics advantage grew from 3 to 8 points; neither average captures notable grade-to-grade changes. Science moved in the opposite direction: Riverdale’s two-grade average fell from 40% to 15%, changing from above to below the state average. SchoolDigger’s reported percentile rose from 62 in 2023–2024 to 70 in 2025–2026. Other context for 2024–2025: the student-teacher ratio was 8.5, and 22% of students were reported as free/reduced lunch eligible; chronic absenteeism was 7%, matching the district and below the state’s 14%. These context figures do not establish why results differ.
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