River Dell Regional High School
🇺🇸 Official data · 2025Oradell, New Jersey 07649 · River Dell Regional School District
#18 of 357 high schools in New Jersey
#465 of 16,910 nationally
About River Dell Regional High School
River Dell Regional High School is a public high located in Oradell, in the River Dell Regional School District school district of New Jersey, United States. It caters for Grades 9–12. In 2025 it enrolled 1,025 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 86.9 out of 100, placing it in the top 5% of high schools in United States and 18th of 357 ranked high schools in New Jersey. Its strongest component is community advantage (fewer free/reduced-price lunch) (100th percentile), and its weakest is students per teacher (75th percentile).
Other published figures: enrollment 1,025.
There are 2 schools in Oradell; River Dell Regional High School ranks 2nd of 2 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)68%
- Reading proficiency (30%)81%
- Community advantage (fewer free/reduced-price lunch) (25%)2.1%
- Students per teacher (15%)11.9
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for River Dell Regional High School by the official sources.
- Enrollment
- 1,025
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 2.1%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 11.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 81%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 68%
- Share of tested students proficient or above (all students, all grades).
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near River Dell Regional High School
Closest schools by straight-line distance, with their Success Index (US).
River Dell Middle School
River Edge · Public middle · Grades 7–8
573 students · 456 m away
Oradell Public School
Oradell · Public elementary · Grades PK–6
809 students · 1.0 km away
Roosevelt School
River Edge · Public elementary · Grades K–6
474 students · 1.2 km away
New Milford High School
New Milford · Public high · Grades 9–12
584 students · 1.3 km away
Memorial Elementary School
Paramus · Public elementary · Grades PK–4
289 students · 1.5 km away
Bertrand F. Gibbs Elementary School
New Milford · Public elementary · Grades PK–5
476 students · 2.1 km away
David E. Owens Middle School
New Milford · Public middle · Grades 6–8
523 students · 2.2 km away
Berkley Street School
New Milford · Public elementary · Grades PK–5
415 students · 2.2 km away
Parkway Elementary School
Paramus · Public elementary · Grades PK–4
297 students · 2.2 km away
East Brook Middle School
Paramus · Public middle · Grades 5–8
555 students · 2.2 km away
Similar schools
Public high schools in New Jersey with a comparable Enrollment.
Sparta High School
Sparta · Public high · Grades 9–12
1,025 students
Allentown High School
Allentown · Public high · Grades 9–12
1,033 students
Alexander Hamilton Preparatory Academy
Elizabeth · Public high · Grades 9–12
1,015 students
Montville Township High School
Montville · Public high · Grades 9–12
1,035 students
Parsippany Hills High School
Morris Plains · Public high · Grades 9–12
1,035 students
West Morris Central High School
Chester · Public high · Grades 9–12
1,015 students
Frequently asked questions
Is River Dell Regional High School a good school?
River Dell Regional High School has a Success Index (US) of 86.9 out of 100 (Top 5% of high schools in United States) and ranks #18 of 357 in New Jersey. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does River Dell Regional High School rank in New Jersey?
River Dell Regional High School ranks #18 of 357 high schools in New Jersey and #465 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend River Dell Regional High School?
River Dell Regional High School had 1,025 students in 2025.
Is River Dell Regional High School a elementary school or a high school?
River Dell Regional High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near River Dell Regional High School?
There are 10 schools within 15 km of River Dell Regional High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.