Serving 295 students in grades Prekindergarten-5, Dennis B O'brien Elementary School ranks in the top 30% of all schools in New Jersey for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 50-54% (which is higher than the New Jersey state average of 36%). The percentage of students achieving proficiency in reading/language arts is 60-64% (which is higher than the New Jersey state average of 49%).
The student:teacher ratio of 9:1 is lower than the New Jersey state level of 11:1.
Minority enrollment is 58% of the student body (majority Hispanic), which is lower than the New Jersey state average of 62% (majority Hispanic).
Quick Stats (2025)
- Grades: Prekindergarten-5
- Enrollment: 295 students
- Student:Teacher Ratio: 9:1
- Minority Enrollment: 58%
- Overall Testing Rank: Top 30% in NJ
- Math Proficiency: 50-54% (Top 30%)
- Reading Proficiency: 60-64% (Top 30%)
- Science Proficiency: 20-29% (Top 50%)
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Top Rankings
Dennis B O'brien Elementary School ranks among the top 20% of public schools in New Jersey for:
Category
Attribute
Most improved public schools
Diversity
Student Attention
School Overview
Dennis B O'brien Elementary School's student population of 295 students has stayed relatively flat over five school years.
The teacher population of 32 teachers has grown by 10% over five school years.
Grades Offered
Grades Prekindergarten-5
(No virtual instruction)
(No virtual instruction)
Total Students
295 students
Gender %
Total Classroom Teachers
32 teachers
School Rankings
Dennis B O'brien Elementary School ranks within the top 30% of all 2,201 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of Dennis B O'brien Elementary School is 0.71, 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
#608 out of 2201 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
50-54%
36%
Reading/Language Arts Test Scores (% Proficient)
60-64%
49%
Science Test Scores (% Proficient)
20-29%
23%
Student : Teacher Ratio
9:1
11:1
American Indian
n/a
n/a
Asian
12%
10%
Hispanic
30%
34%
Black
11%
15%
White
42%
38%
Hawaiian
n/a
n/a
Two or more races
5%
3%
All Ethnic Groups
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
9%
32%
Eligible for Reduced Lunch
3%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Frequently Asked Questions
What is Dennis B O'brien Elementary School's ranking?
Dennis B O'brien Elementary School is ranked #608 out of 2,201 schools, which ranks it among the top 30% of public schools in New Jersey.
What schools are Dennis B O'brien Elementary School often compared to?
Dennis B O'brien Elementary Schoolis often viewed alongside schools like Birchwood Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
50-54% of students have achieved math proficiency (compared to the 36% NJ state average), while 60-64% of students have achieved reading proficiency (compared to the 49% NJ state average).
How many students attend Dennis B O'brien Elementary School?
295 students attend Dennis B O'brien Elementary School.
What is the racial composition of the student body?
42% of Dennis B O'brien Elementary School students are White, 30% of students are Hispanic, 12% of students are Asian, 11% of students are Black, and 5% of students are Two or more races.
What is the student:teacher ratio of Dennis B O'brien Elementary School?
Dennis B O'brien Elementary School has a student ration of 9:1, which is lower than the New Jersey state average of 11:1.
What grades does Dennis B O'brien Elementary School offer ?
Dennis B O'brien Elementary School offers enrollment in grades Prekindergarten-5 (No virtual instruction).
What school district is Dennis B O'brien Elementary School part of?
Dennis B O'brien Elementary School is part of Rockaway Township School District.
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