Summary:
Schools in zip code 07834 include four schools in Denville: two elementary schools, one middle school and one high school, serving grades PK–12. Their SchoolDigger rankings show a generally strong but mixed picture, and the reported 2025–26 results are above state proficiency rates across school levels. The clearest area-wide finding is that all four schools scored above the state in every reported matched test comparison.
Morris County School of Technology stands out most in its high-school results: its average across listed tests was 81%, compared with a matching state average of 45%, and its 11th-grade science result was 90%, versus 29% statewide. Lakeview Elementary School led the two elementary schools on their seven matched tests, averaging 69% compared with 63% at Riverview Elementary School—a 6-point difference. Riverview nevertheless led in third-grade ELA and math. Valleyview Middle School averaged 60%; its advanced-math results were a strength, with 100% proficient in seventh-grade Algebra I and eighth-grade Geometry, alongside 40% in regular eighth-grade math. These averages and SchoolDigger rankings span different grade levels, so they are not direct comparisons across all four schools.
Recent trends differ: SchoolDigger rankings rose from 2023–24 to 2025–26 for Lakeview (82nd to 86th percentile) and Valleyview (86th to 89th), but fell for Riverview (84th to 78th) and Morris County School of Technology (96th to 94th). Test results also vary by subject: Morris County School of Technology’s results rose by an average of 8 points across its matched tests, while Lakeview’s fell by about 5 and Riverview’s by about 3. As context, all four schools report free/reduced lunch eligible for 2024–25: Riverview was 3%, Lakeview 11%, Morris County School of Technology 8% and Valleyview 6%. Lakeview’s student–teacher ratio was 11.9, compared with Riverview’s 9.3; these figures are observations, not explanations for test results.
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