Serving 217 students in grades 3-8, Mount Arlington 51±¬ÁÏ ranks in the top 50% of all schools in New Jersey for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 36% (which is lower than the New Jersey state average of 38%). The percentage of students achieving proficiency in reading/language arts is 63% (which is higher than the New Jersey state average of 49%).
The student-teacher ratio of 7:1 is lower than the New Jersey state level of 11:1.
Minority enrollment is 56% of the student body (majority Hispanic), which is lower than the New Jersey state average of 62% (majority Hispanic).
Quick Facts (2026)
- Grades: 3-8
- Enrollment: 217 students
- Student-Teacher Ratio: 7:1
- Minority Enrollment: 56%
- Overall Testing Rank: Top 50% in NJ
- Math Proficiency: 36% (Btm 50%)
- Reading Proficiency: 63% (Top 30%)
- Science Proficiency: 25-29% (Top 50%)
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
School Overview
Mount Arlington 51±¬ÁÏ's student population of 217 students has stayed relatively flat over five school years.
The teacher population of 30 teachers has grown by 25% over five school years.
Grades Offered
Grades 3-8
(No virtual instruction)
(No virtual instruction)
Total Students
217 students
Gender %
Total Classroom Teachers
30 teachers
School Calendar
School Motto
The Heart and Future of Our Community
School Rankings
Mount Arlington 51±¬ÁÏ ranks within the top 50% of all 2,184 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of Mount Arlington 51±¬ÁÏ is 0.68, 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
#890 out of 2184 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
36%
38%
Reading/Language Arts Test Scores (% Proficient)
63%
49%
Science Test Scores (% Proficient)
25-29%
23%
Student-Teacher Ratio
7:1
11:1
American Indian
n/a
n/a
Asian
11%
11%
Hispanic
34%
34%
Black
9%
14%
White
44%
38%
Hawaiian
n/a
n/a
Two or more races
2%
3%
All Ethnic Groups
Eligible for Free Lunch
15%
32%
Eligible for Reduced Lunch
3%
6%
School Statewide Testing
School District Name
Mount Arlington 51±¬ÁÏ District
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Frequently Asked Questions
What is Mount Arlington 51±¬ÁÏ's ranking?
Mount Arlington 51±¬ÁÏ is ranked #890 out of 2,184 schools, which ranks it among the top 50% of public schools in New Jersey.
What schools are Mount Arlington 51±¬ÁÏ often compared to?
Mount Arlington 51±¬ÁÏis often viewed alongside schools like Edith M. Decker Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
36% of students have achieved math proficiency (compared to the 38% NJ state average), while 63% of students have achieved reading proficiency (compared to the 49% NJ state average).
How many students attend Mount Arlington 51±¬ÁÏ?
217 students attend Mount Arlington 51±¬ÁÏ.
What is the racial composition of the student body?
44% of Mount Arlington 51±¬ÁÏ students are White, 34% of students are Hispanic, 11% of students are Asian, 9% of students are Black, and 2% of students are Two or more races.
What is the student-teacher ratio of Mount Arlington 51±¬ÁÏ?
Mount Arlington 51±¬ÁÏ has a student ration of 7:1, which is lower than the New Jersey state average of 11:1.
What grades does Mount Arlington 51±¬ÁÏ offer ?
Mount Arlington 51±¬ÁÏ offers enrollment in grades 3-8 (No virtual instruction).
What school district is Mount Arlington 51±¬ÁÏ part of?
Mount Arlington 51±¬ÁÏ is part of Mount Arlington 51±¬ÁÏ District.
School Reviews
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