River Dell High School is a four-year comprehensive regional public high school, part of the River Dell Regional School District, which is shared with the neighboring communities of Oradell and River Edge in Bergen County, in the U.S. state of New Jersey.
Serving 1,025 students in grades 9-12, River Dell Regional High School ranks in the top 20% of all schools in New Jersey for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 63% (which is higher than the New Jersey state average of 38%). The percentage of students achieving proficiency in reading/language arts is 75% (which is higher than the New Jersey state average of 49%).
The student-teacher ratio of 12:1 is higher than the New Jersey state level of 11:1.
Minority enrollment is 45% of the student body (majority Asian), which is lower than the New Jersey state average of 63% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,025 students
- Student-Teacher Ratio: 12:1
- Minority Enrollment: 45%
- Graduation Rate: 98% (Top 5% in NJ)
- Overall Testing Rank: Top 20%
- Math Proficiency: 63% (Top 20%)
- Reading Proficiency: 75% (Top 20%)
- Science Proficiency: 51% (Top 10%)
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Top Rankings
River Dell Regional High School ranks among the top 20% of public schools in New Jersey for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
River Dell Regional High School's student population of 1,025 students has stayed relatively flat over five school years.
The teacher population of 87 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,025 students
Total Classroom Teachers
87 teachers
Year Founded
1956
Colors
Black, Gold
School Rankings
River Dell Regional High School ranks within the top 20% of all 2,184 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of River Dell Regional High School is 0.60, which is less than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#285 out of 2184 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
63%
38%
Reading/Language Arts Test Scores (% Proficient)
75%
49%
Science Test Scores (% Proficient)
51%
23%
Student-Teacher Ratio
12:1
11:1
American Indian
n/a
n/a
Asian
30%
11%
Hispanic
11%
35%
Black
1%
14%
White
55%
37%
Hawaiian
n/a
n/a
Two or more races
3%
3%
All Ethnic Groups
Graduation Rate
98%
85%
Eligible for Free Lunch
2%
38%
Eligible for Reduced Lunch (21-22)
1%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
School Notes
- School Mascot: Hawks
Frequently Asked Questions
What is River Dell Regional High School's ranking?
River Dell Regional High School is ranked #285 out of 2,184 schools, which ranks it among the top 20% of public schools in New Jersey.
What schools are River Dell Regional High School often compared to?
River Dell Regional High Schoolis often viewed alongside schools like Northern Valley Regional High School At Demarest by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
63% of students have achieved math proficiency (compared to the 38% NJ state average), while 75% of students have achieved reading proficiency (compared to the 49% NJ state average).
What is the graduation rate of River Dell Regional High School?
The graduation rate of River Dell Regional High School is 98%, which is higher than the New Jersey state average of 85%.
How many students attend River Dell Regional High School?
1,025 students attend River Dell Regional High School.
What is the racial composition of the student body?
55% of River Dell Regional High School students are White, 30% of students are Asian, 11% of students are Hispanic, 3% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of River Dell Regional High School?
River Dell Regional High School has a student ration of 12:1, which is higher than the New Jersey state average of 11:1.
What grades does River Dell Regional High School offer ?
River Dell Regional High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is River Dell Regional High School part of?
River Dell Regional High School is part of River Dell Regional School District.
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