The top reported proficiency rate is 81% in English language arts. The lowest is 48% in Science.
Original Research by School Decision on River Dell Middle School
River Dell Middle School serves seventh and eighth graders in the River Dell Regional School District, a two-school regional arrangement shared by the boroughs of River Edge and Oradell in Bergen County. The school occupies a single building in River Edge, a small, residential borough of under two square miles on the Hackensack River, roughly a short commute west of Upper Manhattan. The community describes itself as walkable to parks and schools but lacking a proper downtown commercial core; residential streets with single-family homes of varying styles dominate the landscape.
Academically, the school performs well on state assessments relative to districts across Bergen County. Its overall proficiency index sits above the midpoint among the county’s districts, a span that runs from lower-performing schools to very high-performing ones. On the New Jersey Student Learning Assessments, the school’s seventh graders posted strong results in English language arts, with a large majority meeting the state’s proficient or advanced benchmark. Eighth-grade ELA numbers were similarly high. Math results showed a split: seventh-grade math was also strong, while eighth-grade math dipped to a level that, while still above some peers, may merit attention. Science, tested in eighth grade using a different proficiency standard, showed a smaller share of students reaching the proficient mark. Parents may want to ask how the school supports students who are not yet meeting that science bar, especially as it is the only tested science grade in middle school.
Because River Dell Middle School ends at eighth grade, there is no graduation rate to report. Chronic absenteeism data and information on special education and English learner populations were not available in the source data, so a parent should inquire directly about those supports. The student body reflects the surrounding community: white students form a majority, followed by a substantial Asian population, with smaller shares of Hispanic, multiracial, and Black students. Economic diversity is very limited; only a minimal number of students qualify for free or reduced-price lunch, a figure far below the state average. That makes the school’s peer environment relatively homogeneous in socioeconomic terms.
The housing market in River Edge and nearby Oradell is expensive. Home values run well above the national median, and rents are similarly high. The borough is largely built out, with no major new housing developments identified in public reports. A bridge replacement project on Route 4 was announced in 2025, signaling ongoing infrastructure investment for commuters. The district’s recent budget decisions matter to residents: for fiscal year 2022-23, the Board of Education approved a tax levy increase that kept the budget under the state cap, meaning the budget did not go to a public vote. That sets the tax burden for property owners in both River Edge and Oradell.
River Dell Middle School fits families who place a high value on strong academic performance in a middle school setting, particularly in ELA and math, and who are comfortable with a largely middle-class to affluent peer group. The lack of a traditional downtown and the residential character means most daily life revolves around neighborhoods, parks, and school grounds. For parents whose children may need extra support in science or who come from a more diverse economic background, it would be wise to visit and ask about the school’s approach to those areas, because the available data does not offer a full picture.
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