Serving 288 students in grades Kindergarten-5, Robert Mascenik Elementary School ranks in the top 30% 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 65-69% (which is higher than the New Jersey state average of 38%). The percentage of students achieving proficiency in reading/language arts is 50-54% (which is higher than the New Jersey state average of 49%).
The student-teacher ratio of 15:1 is higher than the New Jersey state level of 11:1.
Minority enrollment is 71% of the student body (majority Asian), which is higher than the New Jersey state average of 63% (majority Hispanic and Black).
Quick Facts (2026)
- Grades: Kindergarten-5
- Enrollment: 288 students
- Student-Teacher Ratio: 15:1
- Minority Enrollment: 71%
- Overall Testing Rank: Top 30% in NJ
- Math Proficiency: 65-69% (Top 20%)
- Reading Proficiency: 50-54% (Top 50%)
- Science Proficiency: 35-39% (Top 20%)
- Attendance Zone: Robert Mascenick Elementary School serves the northwest part of Iselin, NJ, covering an area of approximately 1 square mile. Most families live within a 5-10 minute drive, with an average distance of 0.7 miles to the school's edge and a maximum distance of 1.3 miles to the furthest point of the zone.
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Top Rankings
Robert Mascenik Elementary School ranks among the top 20% of public schools in New Jersey for:
Category
Attribute
Math Proficiency
Science Proficiency
School Overview
Robert Mascenik Elementary School's student population of 288 students has declined by 7% over five school years.
The teacher population of 19 teachers has declined by 13% over five school years.
Grades Offered
Grades Kindergarten-5
(No virtual instruction)
(No virtual instruction)
Total Students
288 students
Total Classroom Teachers
19 teachers
School Calendar
School Rankings
Robert Mascenik Elementary School ranks within the top 30% of all 2,184 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of Robert Mascenik Elementary School is 0.69, 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
#620 out of 2184 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
65-69%
38%
Reading/Language Arts Test Scores (% Proficient)
50-54%
49%
Science Test Scores (% Proficient)
35-39%
23%
Student-Teacher Ratio
15:1
11:1
American Indian
n/a
n/a
Asian
43%
11%
Hispanic
20%
35%
Black
5%
14%
White
29%
37%
Hawaiian
n/a
n/a
Two or more races
3%
3%
All Ethnic Groups
Chronically Absent Students
(22-23)15.6%
16.7%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
24%
38%
Eligible for Reduced Lunch
3%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Frequently Asked Questions
What is Robert Mascenik Elementary School's ranking?
Robert Mascenik Elementary School is ranked #620 out of 2,184 schools, which ranks it among the top 30% of public schools in New Jersey.
What schools are Robert Mascenik Elementary School often compared to?
Robert Mascenik Elementary Schoolis often viewed alongside schools like Indiana Avenue Elementary School, Oak Tree Road Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
65-69% of students have achieved math proficiency (compared to the 38% NJ state average), while 50-54% of students have achieved reading proficiency (compared to the 49% NJ state average).
How many students attend Robert Mascenik Elementary School?
288 students attend Robert Mascenik Elementary School.
What is the racial composition of the student body?
43% of Robert Mascenik Elementary School students are Asian, 29% of students are White, 20% of students are Hispanic, 5% of students are Black, and 3% of students are Two or more races.
What is the student-teacher ratio of Robert Mascenik Elementary School?
Robert Mascenik Elementary School has a student ration of 15:1, which is higher than the New Jersey state average of 11:1.
What grades does Robert Mascenik Elementary School offer ?
Robert Mascenik Elementary School offers enrollment in grades Kindergarten-5 (No virtual instruction).
What school district is Robert Mascenik Elementary School part of?
Robert Mascenik Elementary School is part of Woodbridge Township School District.
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