Summary:
Flanders, New Jersey, has three schools: two elementary schools serving through grade 5 and one high school serving grades 9–12. The elementary schools are above state averages in every reported matched subject and grade; their clearest shared strength is math, averaging 65% proficient compared with 47% statewide, an 18-point advantage. The high school’s results are more mixed, with strong NJGPA performance but much weaker Algebra I results. Overall, elementary math is the area’s clearest strength, while Algebra I is the most pronounced concern.
No elementary school leads across every subject, and the largest differences between them are in math. Mountain View Elementary School led grade 3 math, 69% to 53%, and grade 4 math, 71% to 63%; Tinc Rd. Elementary School led grade 5 math, 75% to 59%, and grade 5 science, 43% to 35%. ELA results were closer: Tinc Rd. led in grades 3 and 5, while Mountain View led in grade 4, with gaps of 4–7 points. Mount Olive High School stood out on grade 11 NJGPA, beating the state by 12 points in ELA and 10 points in math. Its weakest reported result was Algebra I End of Course: 13% proficient versus 40% statewide, a 27-point shortfall.
Recent changes vary by subject: elementary ELA averages fell 4 points from 2024–25 to 2025–26, while math rose 1 point and grade 5 science rose 1 point; science’s advantage over the state widened by 4 points. SchoolDigger places both elementary schools at the 73rd statewide percentile in 2025–26; Mountain View rose from 62, while Tinc Rd. slipped from 75. Mount Olive was at the 62nd percentile, down from 64 in 2023–24. As context, in 2024–25 Mountain View had 565 students, a 9.8 student-teacher ratio and 21% free/reduced lunch eligible; Tinc Rd. had 449 students, a 9.6 ratio and 33% free/reduced lunch eligible. These measures do not point to one school leading across subjects.
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