River Dell Regional High School (Ranked Top 20% for 2025-26)

55 Pyle Street
Oradell, NJ 07649

( shown in map)

Top 20%

www.riverdell.org

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 992 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 is 63% (which is higher than the New Jersey state average of 38%). The percentage of students achieving is 75% (which is higher than the New Jersey state average of 49%).

The student-teacher ratio of 11:1 is equal to 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 62% (majority Hispanic).

Quick Facts (2025-26)

Grades: 9-12
Enrollment: 992 students
Student-Teacher Ratio: 11:1
Minority Enrollment: 45%
: 98% (Top 5% in NJ)
: Top 20%
: 63% (Top 20%)
: 75% (Top 20%)
: 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:

School Overview

River Dell Regional High School's student population of 992 students has stayed relatively flat over five school years.

The teacher population of 89 teachers has stayed relatively flat over five school years.

Grades Offered

Grades 9-12
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	River Dell Regional High School
9	284
10	262
11	244
12	202

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Total Students

992 students

View Data

Total Students Trends Over Years (1990-2023)
Year	River Dell Regional High School
2023	982
2022	999
2021	1,016
2020	1,042
2019	1,042
2018	1,057
2017	1,057
2016	1,067
2015	1,067
2014	1,086
2013	1,080
2012	1,086
2011	1,036
2010	1,054
2009	992
2008	977
2007	981
2006	952
2005	948
2004	886
2003	877
2002	879
2001	844
2000	822
1999	798
1998	745
1996	764
1995	700
1994	526
1993	506
1992	510
1991	525
1990	526

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Gender %

Total Classroom Teachers

89 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	River Dell Regional High School
2023	90
2022	90
2021	88
2020	90
2019	90
2018	93
2017	93
2016	90
2015	88
2014	87
2013	88
2012	77
2011	65
2010	70
2009	80
2008	63
2007	68
2006	69
2005	66
2004	62
2003	62
2002	58
2001	58
2000	56
1999	56
1998	55
1996	52
1995	54
1994	38
1993	37
1992	37
1991	33
1990	32

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Year Founded

1956

Colors

Black, Gold

School Calendar

View School Calendar

Last Day of School

Mon. May 25, 2026

School Mascot

Hawks

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 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.

This School

State Level (NJ)

#285 out of 2184 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	River Dell Regional High School
2023	#285
2022	#309
2021	#205
2019	#295
2018	#759
2017	#1029
2016	#902
2015	#807
2014	#154
2013	#210
2012	#179

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63%

38%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	63%	38%	64%
2022	61%	36%	63%
2021	49%	26%	52%
2019	68%	44%	70%
2018	61%	42%	65%
2017	53%	41%	61%
2016	55%	40%	64%
2015	53%	36%	62%
2014	89%	75%	89%
2013	88%	75%	89%
2012	90%	75%	88%

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75%

49%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2022	75%	49%	76%
2021	71%	47%	73%
2019	81%	57%	81%
2018	64%	55%	65%
2017	53%	53%	61%
2016	53%	50%	62%
2015	50%	47%	59%
2014	99%	69%	93%
2013	96%	69%	93%
2012	97%	69%	90%
2011	94%	69%	90%

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51%

23%

View Data

Science Proficiency Comparison Over Years (2021-2022)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2022	51%	23%	43%
2021	43%	22%	39%

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Student-Teacher Ratio

11:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	11:1	11:1	11:1
2022	11:1	11:1	11:1
2021	12:1	11:1	12:1
2020	12:1	12:1	11:1
2019	12:1	12:1	11:1
2018	11:1	12:1	12:1
2017	11:1	12:1	12:1
2016	12:1	12:1	12:1
2015	12:1	12:1	13:1
2014	12:1	12:1	13:1
2013	12:1	12:1	13:1
2012	14:1	13:1	14:1
2011	16:1	15:1	16:1
2010	15:1	14:1	15:1
2009	12:1	12:1	12:1
2008	16:1	15:1	16:1
2007	14:1	13:1	14:1
2006	14:1	13:1	14:1
2005	14:1	13:1	14:1
2004	14:1	13:1	13:1
2003	14:1	14:1	14:1
2002	15:1	14:1	14:1
2001	15:1	15:1	14:1
2000	15:1	14:1	14:1
1999	14:1	15:1	14:1
1998	14:1	15:1	14:1
1996	15:1	15:1	14:1
1995	13:1	15:1	13:1
1994	14:1	15:1	14:1
1993	14:1	15:1	14:1
1992	14:1	15:1	14:1
1991	16:1	15:1	15:1
1990	16:1	15:1	16:1

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American Indian

n/a

Asian

29%

10%

View Data

Asian Student Percentage Comparison Over Years (1992-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	27%	10%	29%
2022	24%	10%	27%
2021	22%	10%	25%
2020	20%	11%	22%
2019	20%	11%	22%
2018	20%	10%	22%
2017	20%	10%	22%
2016	19%	10%	20%
2015	19%	10%	20%
2014	22%	10%	21%
2013	22%	10%	23%
2012	21%	9%	20%
2011	21%	9%	20%
2010	20%	9%	21%
2009	21%	9%	22%
2008	22%	9%	22%
2007	21%	8%	20%
2006	20%	8%	20%
2005	18%	7%	20%
2004	16%	7%	18%
2003	17%	7%	17%
2002	17%	7%	17%
2001	16%	6%	16%
2000	15%	6%	15%
1999	14%	6%	15%
1998	12%	6%	12%
1996	11%	5%	12%
1995	13%	5%	12%
1994	10%	5%	10%
1993	13%	5%	11%
1992	13%	5%	11%

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Hispanic

12%

34%

View Data

Hispanic Student Percentage Comparison Over Years (1992-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	12%	33%	11%
2022	12%	32%	12%
2021	12%	31%	11%
2020	10%	29%	10%
2019	10%	29%	10%
2018	8%	27%	8%
2017	8%	27%	8%
2016	6%	26%	7%
2015	7%	25%	7%
2014	6%	24%	6%
2013	5%	23%	5%
2012	6%	23%	6%
2011	6%	22%	6%
2010	7%	21%	6%
2009	7%	20%	6%
2008	6%	19%	6%
2007	5%	19%	5%
2006	3%	18%	4%
2005	3%	18%	4%
2004	4%	17%	4%
2003	4%	17%	3%
2002	4%	16%	3%
2001	3%	15%	3%
2000	3%	15%	3%
1999	3%	14%	3%
1998	4%	14%	4%
1996	3%	14%	2%
1995	3%	13%	3%
1994	3%	13%	3%
1993	2%	13%	3%
1992	2%	12%	1%

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Black

15%

View Data

Black Student Percentage Comparison Over Years (1989-2020)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2020	1%	15%	1%
2019	1%	15%	1%
2018	2%	16%	1%
2017	2%	16%	1%
2016	2%	16%	2%
2015	2%	16%	2%
2014	1%	16%	1%
2013	1%	16%	1%
2012	2%	16%	2%
2011	2%	16%	2%
2010	1%	17%	1%
2009	1%	17%	1%
2008	1%	17%	1%
2007	1%	17%	1%
2006	1%	18%	1%
2005	1%	18%	1%
2004	1%	18%	1%
2003	1%	18%	1%
2002	1%	18%	1%
2001	1%	18%	1%
2000	1%	18%	1%
1999	1%	18%	1%
1998	2%	18%	1%
1996	2%	19%	2%
1995	1%	19%	1%
1991	1%	19%	1%
1990	1%	19%	1%
1989	1%	18%	1%

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White

55%

38%

View Data

White Student Percentage Comparison Over Years (1992-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	58%	39%	57%
2022	61%	40%	58%
2021	64%	41%	61%
2020	67%	43%	65%
2019	67%	43%	65%
2018	69%	45%	68%
2017	69%	45%	68%
2016	72%	46%	71%
2015	72%	48%	71%
2014	71%	49%	71%
2013	72%	50%	71%
2012	71%	51%	72%
2011	71%	52%	72%
2010	72%	53%	72%
2009	71%	54%	71%
2008	71%	55%	71%
2007	73%	56%	74%
2006	76%	56%	75%
2005	78%	57%	75%
2004	79%	58%	77%
2003	78%	58%	79%
2002	78%	59%	79%
2001	80%	61%	80%
2000	81%	61%	81%
1999	82%	62%	81%
1998	82%	62%	83%
1996	84%	62%	84%
1995	83%	63%	84%
1994	87%	63%	86%
1993	85%	63%	85%
1992	85%	64%	86%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2016-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	3%	3%	2%
2022	3%	3%	3%
2021	2%	3%	3%
2020	2%	2%	2%
2019	2%	2%	2%
2018	1%	2%	1%
2017	1%	2%	1%
2016	1%	2%

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All Ethnic Groups

0.60

0.72

View Data

Diversity Score Comparison Over Years (1992-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	0.58	0.71	0.59
2022	0.56	0.71	0.58
2021	0.53	0.71	0.56
2020	0.51	0.70	0.52
2019	0.51	0.70	0.52
2018	0.48	0.70	0.49
2017	0.48	0.70	0.49
2016	0.45	0.69	0.46
2015	0.44	0.68	0.46
2014	0.44	0.68	0.46
2013	0.44	0.67	0.45
2012	0.45	0.66	0.45
2011	0.46	0.65	0.43
2010	0.44	0.65	0.44
2009	0.45	0.64	0.45
2008	0.45	0.63	0.44
2007	0.42	0.62	0.42
2006	0.39	0.62	0.40
2005	0.36	0.61	0.40
2004	0.35	0.60	0.37
2003	0.36	0.60	0.35
2002	0.36	0.59	0.34
2001	0.34	0.58	0.33
2000	0.32	0.57	0.32
1999	0.31	0.57	0.31
1998	0.31	0.57	0.30
1996	0.28	0.56	0.28
1995	0.30	0.55	0.27
1994	0.23	0.55	0.24
1993	0.27	0.55	0.27
1992	0.26	0.54	0.24

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98%

85%

View Data

Graduation Rate Comparison Over Years (2013-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	98%	85%	98%
2022	91%	85%	91%
2021	97%	88%	97%
2020	98%	90%	98%
2019	98%	90%	98%
2018	96%	90%	96%
2017	99%	90%	99%
2016	97%	90%	97%
2015	99%	89%	99%
2014	97%	88%	97%
2013	98%	87%	98%

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Eligible for

32%

View Data

Free Lunch Eligibility Comparison Over Years (1991-2023)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2023	1%	31%	1%
2022	1%	30%	1%
2021	1%	32%	1%
2020	1%	33%	1%
2019	1%	33%	1%
2013	1%	31%	1%
2012	2%	29%	2%
2011	1%	27%	1%
2010	1%	26%	1%
2009	1%	24%	1%
2007	1%	21%	1%
2006	1%	21%	1%
2002	1%	22%	1%
1999	1%	24%	1%
1998	1%	24%	1%
1994	1%	24%	1%
1991	1%	18%	1%

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Eligible for (21-22)

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2004-2022)
Year	River Dell Regional High School	New Jersey	River Dell Regional School District
2022	1%	4%	1%
2013	1%	6%	1%
2012	1%	6%	1%
2010	1%	6%	1%
2009	1%	6%	1%
2008	1%	6%	1%
2006	1%	6%	1%
2004	1%	6%	1%

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School Statewide Testing

View Education Department Test Scores

School District Name

River Dell Regional School District

Source: National Center for Education Statistics (NCES), NJ Dept. of Education

School Notes

School Mascot: Hawks

Profile last updated: 02/09/2025

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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?

992 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, 29% of students are Asian, 12% 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 11:1, which is equal to 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.