Schools Middlesex School

Middlesex School

Available Grades
Boarding 9 10 11
Day 9 10 11

Deadlines

Fall 2026
Upcoming Deadline


Jan
15
01/15/2026
Jan
15
Boarding
Jan
15
01/15/2026
Jan
15
Day

Application Requirements

Part 1
Candidate Profile
Required
Application Fee
Domestic: $80
International: $80
Gateway Fee Waiver
Accepted, contact school
Testing Information
Middlesex requires standardized testing for the 2025-26 application year.

9th grade applicants: Submit SSAT or ISEE scores taken on or after June 2025

10th and 11th grade applicants: Submit SSAT, ISEE, PSAT, SAT or ACT scores taken on or after June 2025.

English Proficiency Tests: Non-native English speakers and/or students who have not been at a school where English is the primary language of instruction for at least two years are strongly encouraged to submit results from a TOEFL, Duolingo or IELTS test taken on or after June 2025.

Note: if extenuating circumstances--such as absence of testing availability--prevent you from taking one of these tests, please contact the Admissions Office at admissions@mxschool.edu.
Part 2
Required Forms
Student Essay Questions
Parent Statement
Optional Forms N/A
Part 3
Required Forms
Current Academic Year Grades
Previous Grades
Current Principal/Counselor Recommendation
Current English Teacher Recommendation
Current Mathematics Teacher Recommendation
Optional Forms
Personal Recommendation
Special Interest Recommendation
Middlesex School
1400 Lowell Road
Concord, MA 01742

School Type

All Gender

Phone
978-371-6524

Fax
978-402-1400

Upcoming Deadline