Summary:
In ZIP code 08035, the high-school list has one school: Haddon Heights Junior/Senior High School, serving grades 7–12 and enrolling 926 students in 2024–2025. The sharpest finding is a split in current NJSLA math: grade 7 proficiency is 58%, compared with 38% statewide, while grade 8 is just 3%, versus 23% statewide. The school’s grade 7 result is 20 percentage points above the state, but its grade 8 result is 20 points below.
There is no second local school to rank against, so the school’s standout results are in particular subjects and grades. ELA is a broad strength: across grades 7–9, the school averages 70% proficient versus 54% statewide, an advantage of 16 percentage points; its largest grade-level lead is 24 points in grade 8. Science is also above the state in both reported grades, averaging 30% versus 24%, or 6 points higher. Grade 11 NJGPA results are above state levels too: 83% in ELA versus 76%, and 69% in math versus 61%. Other math results are mixed: end-of-course Algebra I is 34% versus 40% statewide, while grade 8 Algebra I is 77% versus 75%.
Recent changes are uneven, especially in math. From 2024–2025 to 2025–2026, grade 8 NJSLA math fell 27 percentage points at the school while the state rose 2; grade 8 ELA rose 18 points at the school while the state fell 4. SchoolDigger’s ranking improved from 192 of 429 schools (55th percentile) to 162 of 434 (63rd percentile), with three stars in each year, though that overall measure does not erase the subject-by-grade differences. For context, the 2024–2025 student-teacher ratio was 11.4, and 26% of students were free/reduced lunch eligible. Chronic absenteeism was 6%, compared with 14% statewide, while graduation was 88% versus 89% statewide.
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