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What's one thing River Dell Middle School gets right about preparing students for what comes next?
Community prompt from u/allk12. Replies below.
Enrollment
573
Middle
DISTRICT 799 · STATE 578
SCHOOL COMMUNITY·RIVER DELL REGIONAL SCHOOL DISTRICT·NCES 341226000788
River Dell Middle School
230 WOODLAND AVENUE, River Edge, NJ 07661 · (201) 599-7246 · Bergen County
GRADES 07–08MIDDLE21-SUBURBREGULAR SCHOOL573 STUDENTS
Student : Teacher
11.7:1
49 FTE teachers
DISTRICT 11.8:1 · STATE 10.9:1
Free / Reduced Lunch
1%
4 students
DISTRICT 1% · STATE 41%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 7 | 276 | 48% |
| Grade 8 | 297 | 52% |
Student demographics
62%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 61% · STATE 71% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
River Dell Middle School→River Dell Regional High School
Based on grade levels within River Dell Regional School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
NJSLA 2024-25 . % Meeting or Exceeding ExpectationsEnglish Language Arts
80.8%
NJ avg 53.1% . +1.7pp since 2023
Math
76.1%
NJ avg 41.6% . +3.9pp since 2023
What this means: On the NJSLA, New Jersey's statewide test, about 81 of every 100 students at this school read and write at grade level and about 76 of 100 do math at grade level. Across all New Jersey schools, those numbers are about 53 and 42. Reading and writing scores are up about 2 points since 2023, while math scores are up about 4 points.
NJSLA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 80.8% | 76.1% |
| 2023-24 | 79.1% | 72.2% |
% Meeting or Exceeding Expectations, all students and all tested grades.
Source: NJSLA. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
69.2%
composite math + reading, all grades
Predicted
65.8%
based on NJ schools with similar FRL share
Beats by
+3.4pp
above demographic expectation
What this means: About 69% of students here test proficient in math and reading, compared with the roughly 66% typical for New Jersey schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New Jersey's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like River Dell Middle School
River Dell Middle School's state test result (69.2% proficient) is higher than 3 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| River Dell Middle School this school | 573 | 0.7% | 69.2% |
| Benjamin Franklin Middle School RIDGEWOOD | 627 | 2.6% | 66.1% |
| Warren Middle School Warren | 547 | 7.7% | 63.7% |
| Glen Rock Middle School GLEN ROCK | 642 | 1.1% | 66.6% |
| Robert R Lazar Middle School MONTVILLE | 798 | 4.1% | 70.1% |
| New Providence Middle School NEW PROVIDENCE | 396 | 2.0% | 72.3% |
Matched among New Jersey middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where River Dell Middle School ranks
Among middle schools| Measure | This school | In New Jersey | In Bergen County |
|---|---|---|---|
| State test proficiency ranked highest first | 69.2% | #36 of 433 | #9 of 52 |
| Math proficiency ranked highest first | 76.1% | #31 of 437 ▲ 1 | #8 of 53 no change |
| Reading proficiency ranked highest first | 80.8% | #54 of 437 ▼ 7 | #17 of 53 ▼ 4 |
| Enrollment ranked largest first | 573 | #200 of 445 | #22 of 53 |
| Students per teacher ranked fewest first | 11.7:1 | #309 of 417 | #41 of 52 |
| Diversity index ranked most diverse first | 61.6% | #145 of 419 | #19 of 52 |
| Free and reduced lunch ranked highest share first | 0.7% | #434 of 436 | #51 of 52 |
| Enrollment change since 2017-18 ranked fastest growth first | +0.4% | #119 of 122 | #13 of 14 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
573
+5 (+1%) vs 2020
+11% since 1990-91, when it was 517
Student : Teacher
11.7:1
was 11.8:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 573 | 48.8 | 11.7:1 | 1% (4) |
| 2023-24 | 570 | 51.2 | 11.1:1 | 1% (5) |
| 2022-23 | 589 | 48.8 | 12.1:1 | 2% (11) |
| 2020-21 | 568 | 48 | 11.8:1 | 1% (4) |
| 2017-18 | 571 | 47.7 | 12.0:1 | 1% (6) |
| 2015-16 | 578 | 42 | 13.8:1 | 1% (6) |
| 2010-11 | 548 | 37 | 14.8:1 | 2% (9) |
| 2000-01 | 473 | 36 | 13.1:1 | 2% (9) |
| 1990-91 | 517 | 36 | 14.4:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for River Dell Middle School.
Since 2017-18: students unchanged (571 to 573); teachers up 2% (47.7 to 48.8).
About River Dell Middle School
River Dell Middle School is a mid-sized middle school in River Edge, New Jersey. In all, 573 students attend the school in grades 7 through 8.
The district for River Dell Middle School is River Dell Regional School District, with 2 schools and 1,598 students.
The student body at River Dell Middle School is 52% White. After that, the student body is 30% Asian, 13% Hispanic, and 2% multiracial. Among Bergen County residents, the White share is about 55%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 62%.
Its ratio of 11.7:1 is based on 48.8 full-time-equivalent teachers. Middle schools in New Jersey have an average ratio of 10.9:1. In all, 1% of students qualify for free or reduced-price lunch. That rate is below the 28% average among public schools in Bergen County.
River Dell Middle School is 3.4 points above its predicted average proficiency rate across its state test results (69.2% versus 65.8%), which places it in neither the top nor the bottom 10% in New Jersey.
The county, Bergen County, is where the school is located. The median household earns about $124,884 a year, the share of adults with a bachelor's degree or higher is 53%, and about 5% of people live in poverty. Counting River Dell Middle School, Bergen County has 291 public schools.
River Dell Regional High School is about 0.3 miles from River Dell Middle School, the shortest distance to any other public school. The five-mile area around River Dell Middle School holds at least 8 other public schools. Among 8 nearby schools that report test results, River Dell Middle School ranks 5th on proficiency.
The school's federal locale classification is Suburb: Large.
Compared with 2020-21, when it had 568 students, enrollment in 2024-25 was about the same at 573.
River Dell Middle School has a community page on allk12 for topics such as pickup and drop-off, after-school programs, and teacher feedback. Teachers and staff are welcome to share updates too.
Bergen County at a glance
View full county profilePopulation
962,316
Census ACS
Median income
$124,884
Household, ACS
Bachelor's+
53%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
291
133,883 students
Quick facts
Related schools
Other schools in River Dell Regional School District
- River Dell Regional High SchoolHigh · 1,025 students
Other schools in River Edge
- Cherry Hill SchoolElementary · 697 students
- Roosevelt SchoolElementary · 474 students
Nearby schools
- River Dell Regional High School0.3 mi · 1,025
- Roosevelt School0.4 mi · 474
- New Milford High School0.8 mi · 584
- Oradell Public School0.9 mi · 809
- Memorial Elementary School1.1 mi · 289
- Berkley Street School1.1 mi · 415
Frequently asked questions
About River Dell Middle SchoolHow many students attend River Dell Middle School?
River Dell Middle School enrolls approximately 573 students in grades 07-08.
Is River Dell Middle School an elementary, middle, or high school?
River Dell Middle School is a middle school covering grades 07-08.
What is the student-teacher ratio at River Dell Middle School?
The student-to-teacher ratio at River Dell Middle School is approximately 11.7:1 (49 FTE teachers).
What is the student diversity at River Dell Middle School?
Student demographics at River Dell Middle School are roughly 52% White, 13% Hispanic, 2% Black, 30% Asian, 2% Two or more.
What district is River Dell Middle School in?
River Dell Middle School is part of River Dell Regional School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.