Summary:
Harrisonville, New Jersey, has one listed school, South Harrison Elementary School, serving prekindergarten through grade 6. With no other listed schools for comparison, the clearest benchmark is New Jersey’s results in the same grade and subject. The most important finding is that South Harrison scored above the state in all nine reported subject-and-grade comparisons in 2025–2026.
The school’s strongest result was grade 4 mathematics: 78% proficient, compared with 47% statewide, a 31-point lead. Its lowest result was grade 6 mathematics, at 50% versus 40% statewide, still a 10-point advantage. ELA results ranged from 58% to 71%, with the smallest state lead in grade 5 ELA—7 points—and the largest in grade 3 ELA—23 points. Across the four tested grades, the school’s average advantage over the state was larger in mathematics than in ELA: 20 points compared with 13. Since the list contains only one school, there is no local school-to-school top or bottom to identify.
South Harrison’s average results improved from 2024–2025 to 2025–2026 in both ELA and mathematics, and its lead over the state grew: in ELA, the gap went from 4 to 13 points, while in mathematics it grew from 11 to 20 points. Science was an exception: grade 5 proficiency fell from 47% to 37%, and the school’s lead over the state narrowed from 17 to 10 points. SchoolDigger’s statewide percentile ranking rose from 51 in 2023–2024 to 74 in 2025–2026. As context, 12% of students were eligible for free/reduced lunch in 2024–2025; the student–teacher ratio was 9, and chronic absenteeism was 4%, matching the district and 11 points below the state rate.
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