Serving 428 students in grades Kindergarten-4, Hartshorn School ranks in the top 5% of all schools in New Jersey for overall test scores (math proficiency is top 1%, and reading proficiency is top 1%).
The percentage of students achieving proficiency in math is 85-89% (which is higher than the New Jersey state average of 36%). The percentage of students achieving proficiency in reading/language arts is 80-84% (which is higher than the New Jersey state average of 49%).
The student:teacher ratio of 12:1 is higher than the New Jersey state level of 11:1.
Minority enrollment is 61% of the student body (majority Asian), which is lower than the New Jersey state average of 62% (majority Hispanic and Black).
Quick Stats (2025)
- Grades: Kindergarten-4
- Enrollment: 428 students
- Student:Teacher Ratio: 12:1
- Minority Enrollment: 61%
- Overall Testing Rank: Top 5% in NJ
- Math Proficiency: 85-89% (Top 1%)
- Reading Proficiency: 80-84% (Top 5%)
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Top Rankings
Hartshorn School ranks among the top 20% of public schools in New Jersey for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
School Overview
Hartshorn School's student population of 428 students has grown by 5% over five school years.
The teacher population of 35 teachers has grown by 6% over five school years.
Grades Offered
Grades Kindergarten-4
Total Students
428 students
Gender %
Total Classroom Teachers
35 teachers
Students by Grade
School Rankings
Hartshorn School ranks within the top 5% of all 2,201 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of Hartshorn School is 0.61, 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
#39 out of 2201 schools
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
85-89%
36%
Reading/Language Arts Test Scores (% Proficient)
80-84%
49%
Student : Teacher Ratio
12:1
11:1
American Indian
n/a
n/a
Asian
48%
10%
Hispanic
3%
34%
Black
1%
15%
White
39%
38%
Hawaiian
n/a
n/a
Two or more races
9%
3%
All Ethnic Groups
Eligible for Free Lunch
1%
32%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Frequently Asked Questions
What is Hartshorn School's ranking?
Hartshorn School is ranked #39 out of 2,201 schools, which ranks it among the top 5% of public schools in New Jersey.
What schools are Hartshorn School often compared to?
Hartshorn Schoolis often viewed alongside schools like Glenwood School, Deerfield School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
85-89% of students have achieved math proficiency (compared to the 36% NJ state average), while 80-84% of students have achieved reading proficiency (compared to the 49% NJ state average).
How many students attend Hartshorn School?
428 students attend Hartshorn School.
What is the racial composition of the student body?
48% of Hartshorn School students are Asian, 39% of students are White, 9% of students are Two or more races, 3% of students are Hispanic, and 1% of students are Black.
What is the student:teacher ratio of Hartshorn School?
Hartshorn School has a student ration of 12:1, which is higher than the New Jersey state average of 11:1.
What grades does Hartshorn School offer ?
Hartshorn School offers enrollment in grades Kindergarten-4
What school district is Hartshorn School part of?
Hartshorn School is part of Millburn Township School District.
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