Kinnelon School District

Kinnelon School District has four schools—two elementary schools, one middle school and one high school—serving students from elementary through high school in the Kinnelon area. Overall, many reported results are above state figures, but the most striking finding is the gap in 2025–2026 Algebra I End-of-Course results: Pearl R. Miller Middle School scored 98% (58 percentage points above the state), while Kinnelon High School scored 18% (22 points below it)—an 80-point difference.

Stonybrook Elementary School and Miller stand out for strong results compared with the state, though the size of the advantage varies by grade. Stonybrook’s 2025–2026 math proficiency was 73.7% in grade 4 and 74.8% in grade 5, respectively 27 and 29 points above state results. Across grades 3–8, average math gaps were 23 points above the state, compared with 20 points for ELA. Miller’s Algebra I result was exceptional, but its other results were not equally high in every grade. Kinnelon High also has a mixed picture: its Geometry result was 76.3%, 25 points above the state, while its Algebra I result was below. The high school’s 2024–2025 graduation rate was 97.8%, compared with 88.9% statewide.

Relative performance eased overall: across 21 results available in both years, the average gap above the state went from 22 points in 2024–2025 to 17 in 2025–2026. Stonybrook and Kinnelon High lost ground on average, while Miller’s average was nearly unchanged. As other context, SchoolDigger ranks the district 103rd of 607 statewide, in the 83rd percentile, and gives it four stars. The schools’ 2024–2025 student-teacher ratios ranged from 9.9 to 12.3, averaging 11.0; their free/reduced lunch eligible shares ranged from 2.9% to 6.7% in 2024–2025. Kiel Elementary School has no supplied test-score results, so its performance cannot be compared here.