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Excellent

#15 of 535 private schools in NJ

Top 3% of private schools

Cornerstone Day School

High School

10-12 COMMERCE DR, Cranford, NJ 07016

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on NJ statewide data. Learn more

Enrollment

118

Student-Teacher

6.9:1

Score

8.1

Grades

6th – 12th

Updated 2021-22

How this school compares

In Cranford

#1 of 3

public schools

New Jersey high schools

#2 of 122

About Cornerstone Day School

Cornerstone Day School is a public high school located in Cranford, New Jersey, with an enrollment of 118 students. The student-to-teacher ratio is 6.9:1, allowing for personalized attention from the 17 full-time equivalent teachers. Cornerstone Day School serves grades six through twelve, offering a comprehensive educational experience to its diverse student body.

While specific test score data isn't available, the school maintains a MySchoolScout rating of 2.3 out of 10 and ranks 161st out of 535 schools in New Jersey, placing it around the 70th percentile for state performance. Despite this ranking, Cornerstone Day School focuses on fostering student development through supportive teaching and tailored learning opportunities. Cornerstone Day School is situated in a large suburban area, providing a safe and accessible environment for students to grow academically and socially.

The school community benefits from its location in Cranford, offering both the amenities of suburbia and proximity to urban centers like Union.

What Parents Should Know

With an enrollment of 118 students, Cornerstone Day School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.

With a student-teacher ratio of 6.9:1, Cornerstone Day School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

As a private school, Cornerstone Day School operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.

Compare to Public Schools

Beta

How Cornerstone Day School compares to the 7 public schools in Cranford, NJ

Student-Teacher Ratio
6.9:1
This School
vs
12.6:1
Public Avg
Avg School Size
118
This School
vs
536
Public Avg
Avg School Scout Rating
8.1
This School
vs
6.4
Public Avg

Student Demographics

White 64.4% vs 0%
Black 15.3% vs 0%
Hispanic 12.7% vs 0%
Asian 5.9% vs 0%
Cornerstone Day School Cranford Public Avg

All Schools in Cranford

School Rating
Cornerstone Day School (this school) 8.1
Hillside Avenue School 8.0
Walnut Avenue School 4.3
Bloomingdale Avenue School 4.4
Livingston Avenue School 7.8
Orange Avenue School 7.5
Cranford High School 6.6
Brookside Place School 6.0

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

What This Rating Measures

This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in NJ.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A- 7.6 / 10
View breakdown
Student-Teacher Ratio 6.9:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
A 9.4 / 10
View breakdown
School Day Length 7 hours
Annual Instructional Hours 1,540
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A- 7.7 / 10
View breakdown
Diversity Index 54%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A- 8.2 / 10
View breakdown
Enrollment 118
View data sources

Score basis: Private school model

Data coverage: 80% of scoring components had data

Components scored: 4 of 5

Ranking pool: Private schools in NJ

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 64.4%
Black 15.3%
Hispanic 12.7%
Asian 5.9%
Two or More 1.7%

Source: NCES Private School Survey (PSS)

Location

10-12 COMMERCE DR, Cranford, NJ 07016

Nearby Alternatives

Families considering Cornerstone Day School may also want to explore other high schools in the area. Roselle Park High School (rated 7.0/10, 1.5 miles away, in nearby Roselle Park), a more accessible option. Another option is Linden High School (rated 6.0/10, 1.3 miles away, in nearby Linden), a more accessible option. Additionally, Abraham Clark High School (rated 4.4/10, 1.3 miles away, in nearby Roselle), a more accessible option. For more schools in Cranford, see our Cranford schools guide .

Nearby Schools

20 within 1.5 mi
School Distance Rating
JARDINE ACADEMY Cranford 0.3 mi 5.7
Number 10 Linden 0.5 mi 4.0
Washington Elementary School Roselle 0.6 mi 5.5
Hillside Avenue School Cranford 0.6 mi 8.0
Winfield Township Winfield 0.9 mi 6.9
Myles J. McManus MIddle School Linden 0.9 mi 5.8
TRINITY EPISCOPAL DAY SCHOOL Cranford 0.9 mi
Bloomingdale Avenue School Cranford 1.2 mi 4.4
Ernest J. Finizio Jr. - Aldene School Roselle Park 1.2 mi 2.9
Number 9 Linden 1.2 mi 5.5
Walnut Avenue School Cranford 1.0 mi 4.3
Grace Wilday Junior High School Roselle 1.1 mi 5.4
Leonard V Moore Middle School Roselle 1.1 mi 5.9
ST MICHAEL SCHOOL Cranford 1.2 mi 5.0
Linden High School Linden 1.3 mi 6.0
Roselle Park High School Roselle Park 1.5 mi 7.0
Valley Road School Clark 1.6 mi 4.5
Livingston Avenue School Cranford 1.3 mi 7.8
Abraham Clark High School Roselle 1.3 mi 4.4
Robert Gordon Elementary School Roselle Park 1.5 mi 3.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 07016 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$148,629

Median Home Value

$635,800

Median Rent

$2,116/mo

Population

23,841

College Educated

64.8%

Homeownership

78.4%

Avg Commute

35.4 min

Poverty Rate

2.7%

Median Age

42.9

Community Profile

The community surrounding Cornerstone Day School has a median household income of $148,629. It is a well-educated community where 65% of adults hold a bachelor's degree or higher. The median home value in the area is $635,800, with a median rent of $2,116/month. The local poverty rate of 2.7% is relatively low. The average commute in the area is 35 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
PRINCETON INTERNATIONAL SCHL OF MATH AND SCIENCE Princeton, NJ 7.7
VILLA VICTORIA ACADEMY Ewing, NJ 7.7
VILLA VICTORIA LOWER SCHOOL Trenton, NJ 7.7
Academy for Performing Arts Rockaway, NJ 7.6
Cape May County High School Cape May Court House, NJ 7.6
Hillcrest Academy-South Westfield, NJ 7.6

Frequently Asked Questions

Common questions about Cornerstone Day School

What grades does Cornerstone Day School serve?

Cornerstone Day School serves students in grades 6th through 12th.

How many students attend Cornerstone Day School?

Cornerstone Day School has an enrollment of approximately 118 students.

What is the student-teacher ratio at Cornerstone Day School?

The student-teacher ratio at Cornerstone Day School is 6.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Cornerstone Day School rank in NJ?

Cornerstone Day School is ranked #15 out of 535 private schools in NJ.

What is Cornerstone Day School's MySchoolScout rating?

Cornerstone Day School has a composite rating of 8.1 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

Is Cornerstone Day School a private school?

Yes, Cornerstone Day School is a private coeducational school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is Cornerstone Day School a religious school?

No, Cornerstone Day School is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

Walk Score
63 Somewhat Walkable
Bike Score
43 Somewhat Bikeable

Powered by Walk Score

FBI UCR. County-level only.

Quick Facts NCES PSS (SY 2021-22)

Grades
6th – 12th
Enrollment
118
Gender Split
40% M / 60% F
Student-Teacher Ratio
6.9:1
Teachers (FTE)
17
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
7 hours
Days Per Year
220 days
Setting
Large Suburb
County
UNION
Data Year
2022–2023

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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