Lower Merion High School
#4
Best ACT in Pennsylvania High Schools
1,712
Students
12.2:1
S:T Ratio
School Snapshot
Key metrics at a glanceAvg SAT Scoreout of 1600
1,350
A
Excellent
Avg ACT Scoreout of 36
30
A+
Excellent
AP Coursescourses offered
23
A+
Excellent
AP Enrollmentof students
46%
B-
Excellent
Student-Teacher Ratiostudents per teacher
12:1
A-
Good
This Week at Lower Merion – April 24, 2026
223 students practicing on Varsity Tutors
Academic Resources
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School Details
Address
315 E Montgomery Ave, Ardmore, PA 19003
Phone
(610)645-1810
Website
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District
Lower Merion School District
Academic Calendar
2025-2026
Important dates, holidays, and school events