Mehlville High School

Mehlville R-IX

St Louis, Missouri

1,440 students

High School, Grades 9–12

(314)467-6000 School Website

Best ACT in Missouri High Schools

1,440

Students

14:1

S:T Ratio

School Snapshot

Key metrics at a glance

Avg SAT Score

1,230

A-

out of 1600

Good

Avg ACT Score

A-

out of 36

Good

AP Courses

courses offered

Excellent

AP Enrollment

16%

of students

Average

Student-Teacher Ratio

14:1

A-

students per teacher

Good

This Week at Mehlville – April 20, 2026

196 students practicing on Varsity Tutors

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MATH

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Academic Grades

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Academic Resources

Typical courses and practice resources for students at Mehlville High School

Biology

Cell biology, genetics, evolution, and ecology

AP Biology

College-level biology with lab component

Chemistry

Atomic structure, reactions, and stoichiometry

AP Chemistry

College-level chemistry with lab component

Physics

Mechanics, waves, electricity, and magnetism

AP Physics 1

Algebra-based mechanics and waves

Environmental Science

Ecosystems, human impact, and sustainability

AP Environmental Science

College-level environmental science

World History

Global civilizations from ancient to modern times

AP World History

College-level world history analysis

U.S. History

American history from colonization to present

AP U.S. History

College-level American history

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School Details

Address

3200 Lemay Ferry Rd, St Louis, MO 63125

Phone

(314)467-6000

Website

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District

Mehlville R-IX

Academic Calendar

2025-2026

Important dates, holidays, and school events

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