Arlington High

Arlington, Massachusetts

1,527 students

High School, Grades 9–12

1,527

Students

13.2:1

S:T Ratio

School Snapshot
Key metrics at a glance
Avg SAT Score

1,270

A-

out of 1600
Good
Avg ACT Score

27

A

out of 36
Excellent
AP Courses

22

A+

courses offered
Excellent
AP Enrollment

31%

C+

of students
Good
Student-Teacher Ratio

13:1

A-

students per teacher
Good
Academic Grades

Select a grade level to explore courses and resources

Standardized Test Dates

Upcoming national, state, and school calendar dates that affect students at Arlington High.

National Tests

April 21, 2026 – May 29, 2026

ACT — School Day - Late Spring Online

Score release

May 14, 2026 – May 28, 2026

SAT — School Day

Score release

May 16, 2026 – May 30, 2026

SAT Score Release Date

Score release

May 20, 2026

AP Biology *Late

Test date

May 20, 2026

AP Chemistry *Late

Test date

May 20, 2026

AP French Language and Culture *Late

Test date
+67 more national tests this school year

State Assessments

March 23, 2026 – June 5, 2026

Massachusetts Comprehensive Assessment System

Testing window
MA

March 24, 2026 – June 10, 2026

MCAS — High School

Testing window
MA

School Milestones

May 21, 2026 – May 29, 2026

School End/Summer Start

Other

May 28, 2026

School End/Summer Start

Other

June 4, 2026

School End/Summer Start

Other

June 5, 2026 – June 16, 2026

Graduation

Other
MA

June 12, 2026 – June 22, 2026

School End/Summer Start

Other
MA
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School Details
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