Private School Review - Established 2003
Arlington Catholic High School
Lesley Ellis School

Arlington Private Schools (2026-27)

For the 2026-27 school year, there are 4 private schools serving 1,136 students in Arlington, MA, 16% of all K-12 students in Arlington, MA are educated in private schools versus public schools (compared to the MA state average of 12%).
The average acceptance rate is 97%, which is higher than the Massachusetts private school average acceptance rate of 71%.
50% of private schools in Arlington, MA are religiously affiliated (most commonly Catholic).

Quick Facts (2026-27)

  • # Private Schools: 4
  • # Students Served: 1,136
  • Average Tuition: $15,722
  • % Students on Financial Aid: 24%
  • Acceptance Rate: 97%
  • Average Class Size: 18 students
  • % Students of Color: 20%
  • View Arlington, MA School Trends

Quick Facts (2026-27)

  • # Private Schools: 4
  • # Students Served: 1,136
  • Average Tuition: $15,722
  • % Students on Financial Aid: 24%
  • Acceptance Rate: 97%
  • Average Class Size: 18 students
  • % Students of Color: 20%
  • View Arlington, MA School Trends

Top Ranked Arlington Private Schools (2026-27)

Arlington Catholic High School Photo
Arlington Catholic High School
Gr: 9-12 | 456 students
Avg. class size: 21 students
Sports: 16 | Extracurriculars: 9
Catholic
16 Medford St
Arlington, MA 02474
(781) 646-7770
(1)
View Profile
Lesley Ellis School Photo
Lesley Ellis School
Gr: NS-8 | 251 students
Avg. class size: 18 students
Sports: 3 | Extracurriculars: 2
34 Winter Street
Arlington, MA 02474
(781) 641-1346
(4)
View Profile
Map of St. Agnes School
St. Agnes School
Gr: PK-8 | 317 students
Avg. class size: 16 students
Sports: 6 | Extracurriculars: 6
Catholic
39 Medford Street
Arlington, MA 02474
(781) 643-9031
View Profile
Map of Arlington Children's Center Inc
Arlington Children's Center Inc
Gr: NS-K | 112 students
Daycare / Preschool
17 Irving Street
Arlington, MA 02476
(781) 646-9307
View Profile

Arlington, MA Private School Trends (10-Year)

4
Private Schools
-33.3% (-2 schools) 10-yr
1,136
Students
+18.0% (+173 students) 10-yr
$15,722
Avg. Tuition
-36.1% (-$8,876) 10-yr
18
Avg. Class Size
+50.0% (+6 students) 10-yr
20%
Students of Color
-9.1% (-2.0 pp) 10-yr
9:1
Student-Teacher Ratio
+28.6% (+2.0) 10-yr
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Enrollment & Diversity
Category
This Town (Arlington)
This State (MA)
# Schools
4 Schools
852 Schools
# Students
1,136 Students
126,399 Students

Trends in the Average Number of Students Per Private School

YearArlington, MA AvgMassachusetts (MA)National
2025284159179
2024284156172
2023244159174
2022306162185
2021306159180
2020285155171
2019253157175
2018231157172
2017218160180
2016231159178
2015161152167
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% Students of Color
20%
31%

Percentage of Students of Color Trends (2015-2025)

YearArlington, MA AvgMassachusetts (MA)National
202520%31%34%
202420%29%34%
202356%30%33%
202251%29%33%
202149%28%32%
202047%27%32%
201920%26%31%
201820%25%31%
201719%26%32%
201619%27%32%
201522%28%32%
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0.61
0.63

Diversity Score Trends

YearArlington, MA AvgMassachusetts (MA)National
20250.610.630.65
20240.610.630.65
20230.710.620.65
20220.700.600.64
20210.700.600.64
20200.690.590.64
20190.580.570.63
20180.580.580.63
20170.530.550.61
20160.510.550.61
20150.590.550.61
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Show more data/charts: racial breakdown
# American Indian Students
2 Students
187 Students
% American Indian Students
n/a
n/a
# Asian Students
43 Students
6,792 Students
% Asian Students
4%
5%

Asian Student Percentage Trends

YearArlington, MA AvgMassachusetts (MA)National
20254%6%5%
20244%6%5%
20234%6%5%
202218%7%4%
202118%6%4%
202017%7%4%
20197%6%4%
20187%5%4%
20176%6%4%
20167%5%4%
20154%5%4%
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# Hispanic Students
59 Students
7,577 Students
% Hispanic Students
5%
6%

Hispanic Student Percentage Trends

YearArlington, MA AvgMassachusetts (MA)National
20255%6%9%
20245%6%9%
20235%6%9%
20227%5%8%
20217%5%9%
20206%5%9%
20193%5%8%
20183%5%8%
20173%4%8%
20163%4%8%
20154%5%8%
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# Black Students
34 Students
8,696 Students
% Black Students
3%
7%

Black Student Percentage Trends

YearArlington, MA AvgMassachusetts (MA)National
20253%7%7%
20243%7%7%
202335%7%8%
20222%6%7%
20212%6%7%
20202%6%8%
20192%6%7%
20183%6%7%
20174%6%7%
20164%6%7%
20156%7%8%
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# White Students
566 Students
67,960 Students
% White Students
50%
55%

White Student Percentage Trends

YearArlington, MA AvgMassachusetts (MA)National
202550%54%52%
202450%54%52%
202321%56%52%
202238%58%54%
202138%59%54%
202036%59%54%
201958%61%56%
201858%61%56%
201765%63%58%
201668%64%58%
201556%64%58%
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# Hawaiian Students
1 Student
83 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
431 Students
33,222 Students
% of Others Students
38%
27%

Other Races Student Percentage Trends

YearArlington, MA AvgMassachusetts (MA)National
202538%27%26%
202438%27%26%
202335%25%25%
202235%24%25%
202135%24%25%
202039%23%24%
201930%22%24%
201829%23%23%
201722%21%22%
201618%21%22%
201530%19%21%
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All Ethnic Groups
Academics
# Teachers
121 Teachers
15,794 Teachers
Average Student-Teacher Ratio
9:1
8:1

Student-Teacher Ratio Trends (2015-2025)

YearArlington, MA AvgMassachusetts (MA)National
20259:18:111:1
20249:18:111:1
20239:18:111:1
20228:18:111:1
20218:18:111:1
20208:18:112:1
201910:19:112:1
20189:19:112:1
20178:19:112:1
20168:19:112:1
20157:19:112:1
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% Average Faculty w/Advanced Degree
88%
67%

Percentage of Faculty With Advanced Degrees Trends (2015-2025)

YearArlington, MA AvgMassachusetts (MA)National
202588%67%55%
202488%67%54%
202369%67%54%
202269%67%54%
202169%67%54%
202071%66%54%
201967%66%53%
201867%65%53%
201767%64%53%
201667%64%52%
201565%64%52%
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Average Class Size
18 students
14 students

Class Size Trends (2015-2025)

YearArlington, MA AvgMassachusetts (MA)National
2025181415
2024181415
2023161415
2022151415
2021151415
2020151415
2019141415
2018141415
2017141415
2016141415
2015121415
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Average Number of AP Courses
20 courses
16 courses

Trends in Average Number of AP Courses Offered

YearArlington, MA AvgMassachusetts (MA)National
2025201613
2024161512
2023161411
2022161511
2021161411
2020161411
2019161311
2018161311
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Tuition & Aid
Average Yearly Tuition Cost
$15,722
$26,745

Tuition Cost Trends (2015-2025)

YearArlington, MA AvgMassachusetts (MA)National
2025$15,722$26,485$15,012
2024$15,722$27,159$13,254
2023$14,654$25,129$12,626
2022$14,491$24,457$12,187
2021$14,491$22,623$11,800
2020$16,419$21,672$11,512
2019$22,658$20,983$11,293
2018$22,658$20,804$11,017
2017$23,856$20,615$10,708
2016$24,595$20,164$10,356
2015$24,598$19,785$9,939
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Average % on Financial Aid
24%
36%

Percent on Financial Aid Trends (2015-2025)

YearArlington, MA AvgMassachusetts (MA)National
202524%36%34%
202424%36%34%
202326%37%34%
202226%36%33%
202126%35%33%
202020%35%32%
201918%34%31%
201818%33%30%
201715%32%30%
201613%31%29%
201512%31%28%
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Average Financial Aid Grant
$3,000
$17,671

Financial Aid Grant Trends (2017-2025)

YearArlington, MA AvgMassachusetts (MA)National
2025$3,000$17,137$7,073
2024$3,000$16,262$6,930
2023$3,000$15,114$6,469
2022$3,000$14,744$6,289
2021$3,000$14,176$6,055
2020$6,500$14,234$5,921
2019$6,000$13,455$5,795
2018$6,000$12,706$5,456
2017$4,000$12,090$5,319
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Admissions & Athletics
Average Acceptance Rate
97%
71%

Acceptance Rate Trends (2015-2025)

YearArlington, MA AvgMassachusetts (MA)National
202597%71%81%
202490%70%85%
202393%71%85%
202290%70%85%
202190%71%85%
202060%71%85%
201964%71%85%
201864%71%85%
201768%71%85%
201668%70%85%
201568%69%85%
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Average Number of Extracurriculars
6 extracurriculars
13 extracurriculars
Average Number of Sports
8 sports
9 sports

Frequently Asked Questions

What are the top ranked private schools in Arlington, MA?
The top ranked private schools in Arlington, MA include Lesley Ellis School, Arlington Catholic High School, and St. Agnes School.
How many private schools are located in Arlington?
4 private schools are located in Arlington.
What percentage of students in Arlington go to private school?
16% of all K-12 students in Arlington are educated in private schools (compared to the MA state average of 12%).
What percentage of private schools are religiously affiliated in Arlington?
50% of private schools in Arlington are religiously affiliated (most commonly Catholic).

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