Located in one of this country's most historic towns, Concord, Massachusetts, Middlesex aspires to help its students "find their promise" through immersion in a rigorous academic program, inclusive programs in arts and athletics, and a commitment to service.
Quick Facts (2025-26)
- Top Ranked MA School
- Grades: 9-12
- Enrollment: 427 students
- Yearly Tuition: $64,350
- Acceptance rate: 16%
- Average class size: 12 students
- Application Deadline: Jan. 15
- Source: Verified school update
Top Rankings
Middlesex School ranks among the top 20% of private schools in Massachusetts for:
Category
Attribute
SAT Score
ACT Score
Acceptance Rate
Student Body
AP Courses
Sports offered
Extracurriculars
School History
School Resources
School Overview
Religious Affiliation
Grades Offered
Grades 9-12
Year Founded
1901
Last Day of School
Sun. May 31, 2026
Campus Size
350 acres
Student Body
Total Students
427 students
Student Body Type
Co-ed
% Students of Color
45%
State avg.: 31%
Students by Grade
Academics and Faculty
Total Classroom Teachers
93 teachers
Student-Teacher Ratio
5:1
National avg.: 13:1
% Faculty w/Advanced Degree
80%
Average Class Size
12 students
Number of AP Courses
23 courses
List of Courses Offered
Advanced Courses
AP American Government and PoliticsAP Art History
AP BiologyAP Calculus AB
AP Calculus BCAP Chemistry
AP ChineseAP Computer Science A
AP Economics ( Macro)AP Economics ( Micro)
AP English LiteratureAP Environmental Science
AP French LanguageAP Latin (Vergil)
AP Music TheoryAP Physics B
AP Physics CAP Spanish Language
AP Spanish LiteratureAP Statistics
AP Studio ArtAP US History
Average SAT score
1450
(Out of 1600)
Average ACT score
32
(Out of 36)
Average Percentile SSAT
85%
Classroom Dress Code
Casual
None
Tuition and Acceptance Rate
Admission Deadline
Jan. 15
Yearly Tuition Cost
$64,350
Tuition Notes
For 2025-26:
Boarding: $79200
Day: $64350
% on Financial Aid
34%
Average Financial Aid Grant
$61,000
Acceptance Rate
16%
National avg.: 81%
College Acceptance Rate
100%
Admissions Director
Douglas C. Price
Application URL
Endowment Size
$301.5 million
Sports
Total Sports Offered
20 sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
71 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
7v7 Football ClubAI (Artificial Intelligence) Club
Allies Against Racial InjusticeArchitecture and Design
Astronomy ClubBaking club
Book Lovers’ ClubBotany Club
Campuses Against CancerCards for Kids
Clash of Clans clubClassical Music Club
Classics clubComic Book Club
Common senseComputer Programming Club
Country Music ClubCreative Writing Club
Crypto ClubDebate Club
decaDeFi Club
EQ: science magazineFemX
Film ClubFinance club
Fishing ClubFocus
French ClubFriendship bracelet club
Gazebo Skating ClubGirls with Gains
GSA (Gender and Sexuality Alliance)Harry Potter Club
I saw the sign (asl club)Improv Club
Jewish Student UnionJiu Jitsu club
Kickball ClubKnitting Club
Lifting clubMarine Biology Club
Math ClubMeats and Beats
Mindfulness (Morning Mindfulness)Minecraft club
Moodle Development TeamMusic Appreciation Club
MX Swim TeamMXSpike (Spikeball Club)
MXTVOrigami Club
Outdoors ClubPeace of Mind
Pen Pal ClubPhotography Club
PICKLEBALL CLUBPing Pong Club
Poi ClubPolitics Club
RoboticsSending a Smile
Sports Analytics ClubStar Wars Club
Studio Art ClubThe Anvil
The Hammer PodcastThe Iris
Ultimate Frisbee ClubVideo Production Club
Writing for Social Justice and Change
School Notes
- School Motto: 'Find Your Promise'
- School Mascot: Zebras
- On the edge of Concord, Massachusetts, just 20 miles outside Boston, beyond an entry column of overhanging maples, you`ll find the sprawling green campus of Middlesex, an independent secondary school for boarding and day students in grades 9-12. Keep heading to your right and you`ll see the main schoolhouse, where a small community from across the world gathers to pursue an education built upon a curriculum of outstanding breadth and depth. Peek inside a classroom to see an intimate group of passionate students as they discuss, analyze, listen, laugh, strive and thrive.The houses you`ll see on campus belong to our faculty, who open their doors day and night to talk with students about Hemingway, Newton, Caesar, the big game, that great concert, or nothing in particular. Academic expertise, commitment, and eternal energy, however, only partly define the faculty at Middlesex. Their passion for the careful development of complete, ethical teenagers is the true reason they`ve dedicated their lives to Middlesex.You`ll notice facilities that foster our cherished sense of community. Stop by our theater and maybe you`ll catch one of our full ensemble Broadway musicals. Head over to our non-denominational Chapel to hear a speech from one of our seniors, or maybe some Beethoven from our chamber music ensemble. Check out the Student Center and shoot some pool before the school packs in for an a cappella jam. If you want to enjoy some athletic competition elite or otherwise head out to our fields, where every student wears the Middlesex colors with pride.When you come to Middlesex, you`ll find a place full of opportunity, challenge, and friendship. A place to take risks and become a leader. A place to discover passions, talents, and yourself. A place, as our founder so aptly put it, to find your promise.
- Sample of notable school alumni/alumnae:
- Steve Carell - Actor
- Kevin Systrom - Co-founder of Instagram
- Sarah Leary - Cofounder of Nextdoor
- William Hurt - Academy Award Winning Actor
- Anthony Lake - Executive Director, Unicef
- Li Chung Pei - Architect
- Cass Sunstein - Head of the Office of Information and Regulatory Affairs
- Sarah Leary - Co-Founder of Nextdoor
- Martin Hoffman - US Secretary of the Army
- Joseph Kahn - Managing Editor, The New York Times
Source: Verified school update
Frequently Asked Questions
How much does Middlesex School cost?
Middlesex School's tuition is approximately $64,350 for private students.
What schools are Middlesex School often compared to?
Middlesex School is often viewed alongside schools like Concord Academy by visitors of our site.
What is the acceptance rate of Middlesex School?
The acceptance rate of Middlesex School is 16%, which is lower than the national average of 71%. Middlesex School's acceptance rate is ranked among the top private schools in Massachusetts with low acceptance rates.
Who are famous alumni from Middlesex School?
Middlesex School famous alumni include: Steve Carell, Kevin Systrom, Sarah Leary, William Hurt, Anthony Lake, Li Chung Pei, Cass Sunstein, Sarah Leary, Martin Hoffman and Joseph Kahn.
What sports does Middlesex School offer?
Middlesex School offers 20 interscholastic sports: Alpine Skiing, Baseball, Basketball, Crew, Cross Country, Dance, Field Hockey, Football, Golf, Ice Hockey, Lacrosse, Nordic Skiing, Soccer, Softball, Squash, Tennis, Track and Field, Ultimate Frisbee, Volleyball and Wrestling. Middlesex School is ranked as one of the top 20% of private schools in Massachusetts for most sports offered.
What is Middlesex School's ranking?
Middlesex School ranks among the top 20% of private schools in Massachusetts for: Highest average SAT score, Highest average ACT score, Lowest average acceptance rates, Largest student body, Most AP courses offered, Most sports offered, Most extracurriculars offered, Oldest founding date and Largest endowments.
When is the application deadline for Middlesex School?
The application deadline for Middlesex School is Jan. 15.
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