Summary:
ZIP code 08021 has two public high schools serving grades 9–12: Overbrook Senior High School and Lindenwold High School. They have similar enrollments—860 and 802 students—and student–teacher ratios of 13.2 and 13.1. The clearest overall finding is that neither school reaches the state proficiency level on any of the seven matched 2025–2026 comparisons.
Overbrook leads in four of those comparisons, including 9th-grade ELA (30% versus 16%), 11th-grade science (23% versus 6%), and NJGPA 11th-grade ELA (66% versus 51%). Its science result is closest to the state, though still 5 percentage points lower. Lindenwold leads the other three, all in math: its end-of-course Geometry result is 30% versus 15% at Overbrook, and it also leads in 9th-grade Algebra I and Algebra I end-of-course. SchoolDigger ranks Overbrook 338th of 434 schools (22nd percentile) and Lindenwold 381st of 434 (12th percentile); these are rankings, not proficiency rates.
Trends are mixed rather than showing broad progress toward the state. The schools’ average 9th-grade ELA result rose from 21% to 23% between 2024–2025 and 2025–2026, while the gap to the state narrowed by 1 percentage point; the NJGPA mathematics gap narrowed by 6 points. By contrast, the Algebra I 9th-grade gap widened by 6 points, and the NJGPA ELA gap widened by 2 points. Individual results also diverged in science: Overbrook rose from 19% to 23%, while Lindenwold fell from 17% to 6%. As context, in 2024–2025, free/reduced lunch eligible students accounted for 69% at Overbrook and 82% at Lindenwold. Overbrook also had higher graduation (84% versus 75%), but higher chronic absenteeism (30% versus 26%); both schools’ absenteeism rates exceeded the state’s 14%.
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