Marquette Sr. High
#1
Best ACT in Missouri High Schools
2,155
Students
15.8:1
S:T Ratio
School Snapshot
Key metrics at a glanceAvg SAT Scoreout of 1600
1,320
A
Excellent
Avg ACT Scoreout of 36
29
A
Excellent
AP Coursescourses offered
17
A
Excellent
AP Enrollmentof students
31%
C+
Good
Student-Teacher Ratiostudents per teacher
16:1
B+
Good
This Week at Marquette Sr. High – April 19, 2026
293 students practicing on Varsity Tutors
Academic Resources
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School Details
Address
2351 Clarkson Rd, Chesterfield, MO 63017
Phone
(636)891-6000
Website
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District
Rockwood R-VI School District
Academic Calendar
2025-2026
Important dates, holidays, and school events