²ÝÁñÉçÇø

²ÝÁñÉçÇø School Review - Established 2003
Westmont Montessori School
St. Joseph School

Mendham ²ÝÁñÉçÇø Schools (2026-27)

For the 2026-27 school year, there are 3 private schools serving 313 students in Mendham, NJ, 17% of all K-12 students in Mendham, NJ are educated in private schools versus (compared to the NJ state average of 14%).
The average acceptance rate is 90%, which is higher than the New Jersey private school average acceptance rate of 78%.
33% of private schools in Mendham, NJ are religiously affiliated (most commonly Catholic).

Quick Facts (2026-27)

Quick Facts (2026-27)

²ÝÁñÉçÇø Schools in Mendham, NJ (2026-27)

Map of The Cottage School
The Cottage School
Gr: NS-8 | 20 students
Extracurriculars: 3
Alternative School
9E Main Street
Mendham, NJ 07945
(908) 719-9610
(1)
View Profile
St. Joseph School Photo
St. Joseph School
Gr: NS-8 | 156 students
Catholic
8 W Main St
Mendham, NJ 07945
(973) 543-7474
(2)
View Profile
Westmont Montessori School Photo
Westmont Montessori School
Gr: PK-K | 137 students
Avg. class size: 16 students
Extracurriculars: 1
Daycare / Preschool
577 State Route 24
Mendham, NJ 07945
(908) 879-6355
(2)
View Profile
[+] Show Closed ²ÝÁñÉçÇø Schools in Mendham, New Jersey

Mendham, New Jersey ²ÝÁñÉçÇø Schools (Closed)

Map of Daytop Preparatory School
Daytop Preparatory School
Gr: 9-12 | 66 students
Special Education School
80 W Main St
Mendham, NJ 07945
(973) 543-5656
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Mendham, NJ ²ÝÁñÉçÇø School Trends (10-Year)

3
²ÝÁñÉçÇø Schools
+50.0% (+1 school) 10-yr
313
Students
+22.7% (+58 students) 10-yr
16
Avg. Class Size
-5.9% (-1 student) 9-yr
11%
Students of Color
+83.3% (+5.0 pp) 10-yr
9:1
Student-Teacher Ratio
-10.0% (-1.0) 10-yr
Download town snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.
Enrollment & Diversity
Category
This Town (Mendham)
This State (NJ)
# Schools
3 Schools
1,374 Schools
# Students
313 Students
216,366 Students

Trends in the Average Number of Students Per ²ÝÁñÉçÇø School

YearMendham, NJ AvgNew Jersey (NJ)National
2025104168179
2024104165172
202395164174
202299167185
202199165180
202099160171
2019129164175
2018129164172
2017127167180
2016119166178
2015128154167
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% Students of Color
11%
40%

Percentage of Students of Color Trends (2015-2025)

YearMendham, NJ AvgNew Jersey (NJ)National
202511%40%34%
202411%39%34%
202313%40%33%
202219%38%33%
202119%39%32%
202019%39%32%
201914%38%31%
201814%37%31%
20176%38%32%
20166%38%32%
20156%37%32%
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0.52
0.63

Diversity Score Trends

YearMendham, NJ AvgNew Jersey (NJ)National
20250.520.630.65
20240.520.640.65
20230.580.650.65
20220.580.650.64
20210.580.650.64
20200.580.650.64
20190.540.650.63
20180.540.650.63
20170.480.640.61
20160.450.650.61
20150.220.650.61
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Show more data/charts: racial breakdown
# American Indian Students
n/a
942 Students
% American Indian Students
n/a
n/a
# Asian Students
2 Students
11,318 Students
% Asian Students
1%
5%

Asian Student Percentage Trends

YearMendham, NJ AvgNew Jersey (NJ)National
20251%6%5%
20241%6%5%
20231%6%5%
20221%6%4%
20211%5%4%
20201%5%4%
20192%5%4%
20182%5%4%
20172%5%4%
20162%5%4%
20153%4%4%
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# Hispanic Students
2 Students
15,574 Students
% Hispanic Students
1%
7%

Hispanic Student Percentage Trends

YearMendham, NJ AvgNew Jersey (NJ)National
20251%8%9%
20241%7%9%
20234%7%9%
20224%7%8%
20214%8%9%
20204%8%9%
20194%8%8%
20184%8%8%
20171%8%8%
20161%8%8%
20151%8%8%
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# Black Students
1 Student
14,112 Students
% Black Students
n/a
7%

Black Student Percentage Trends

YearMendham, NJ AvgNew Jersey (NJ)National
20233%7%8%
20223%8%7%
20213%8%7%
20203%8%8%
20193%9%7%
20183%9%7%
20171%9%7%
20161%9%7%
20151%9%8%
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# White Students
146 Students
116,208 Students
% White Students
50%
54%

White Student Percentage Trends

YearMendham, NJ AvgNew Jersey (NJ)National
202550%53%52%
202450%53%52%
202348%51%52%
202248%52%54%
202148%52%54%
202048%52%54%
201961%52%56%
201861%52%56%
201766%53%58%
201670%53%58%
201588%51%58%
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# Hawaiian Students
n/a
292 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
142 Students
58,685 Students
% of Others Students
48%
27%

Other Races Student Percentage Trends

YearMendham, NJ AvgNew Jersey (NJ)National
202548%27%26%
202448%27%26%
202344%29%25%
202244%27%25%
202144%27%25%
202044%27%24%
201930%26%24%
201830%26%23%
201730%25%22%
201626%25%22%
20157%28%21%
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All Ethnic Groups
Academics
# Teachers
36 Teachers
20,263 Teachers
Average Student-Teacher Ratio
9:1
11:1

Student-Teacher Ratio Trends (2015-2025)

YearMendham, NJ AvgNew Jersey (NJ)National
20259:111:111:1
20249:111:111:1
20238:111:111:1
202210:111:111:1
202110:111:111:1
202010:111:112:1
201910:111:112:1
201810:111:112:1
201710:111:112:1
201610:111:112:1
201510:112:112:1
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% Average Faculty w/Advanced Degree
40%
53%

Percentage of Faculty With Advanced Degrees Trends (2017-2025)

YearMendham, NJ AvgNew Jersey (NJ)National
202540%54%55%
202440%53%54%
202340%54%54%
202240%54%54%
202140%53%54%
202040%52%54%
201940%53%53%
201840%53%53%
201740%52%53%
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Average Class Size
16 students
14 students

Class Size Trends (2016-2025)

YearMendham, NJ AvgNew Jersey (NJ)National
2025161415
2024161415
2023161415
2022201415
2021201415
2020201415
2019201415
2018201415
2017201415
2016171415
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Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Tuition & Aid
Admissions & Athletics
Average Acceptance Rate
90%
78%
Average Number of Extracurriculars
2 extracurriculars
12 extracurriculars

Frequently Asked Questions

How many private schools are located in Mendham, NJ?
3 private schools are located in Mendham, NJ.
What percentage of students in Mendham go to private school?
17% of all K-12 students in Mendham are educated in private schools (compared to the NJ state average of 14%).
What percentage of private schools are religiously affiliated in Mendham?
33% of private schools in Mendham are religiously affiliated (most commonly Catholic).

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