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 – August 18, 2026

190 students practicing on Varsity Tutors

SAT Prep

1520

students

Start practicing →

ACT Prep

ENG

MATH

READ

SCI

students

Start practicing →

Math

students

Start practicing →

English

students

Start practicing →

Science

students

Start practicing →

Explore practice resources for Mehlville students

Academic Grades

Select a grade level to explore courses and resources

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

Standardized Test Dates

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

National Tests

August 1, 2026 – November 30, 2026

ISEE — Fall Testing Season

Testing window

August 3, 2026 – June 30, 2027

SSAT — Flex Testing

Testing window

August 22, 2026

SAT — National

Test date

August 28, 2026

SAT — National

Registration deadline

September 1, 2026

ACT — National

Late registration deadline

September 1, 2026

SAT — National

Late registration deadline

+76 more national tests this school year

State Assessments

September 14, 2026 – December 18, 2026

MAP-Alternate Assessment — MAP-A

Testing window

February 1, 2027 – May 21, 2027

MAP-Alternate Assessment — MAP-A

Testing window

See the full national test & school calendar

Varsity Tutors

Unlock Academic Success

Personalized learning support for Mehlville High School learners

SAT Prep

Practice tests, flashcards, and AI-powered study tools

ACT Prep

Master all four sections with targeted practice

Study Coach

Get instant help with homework and practice problems 24/7

1:1 Tutoring

Match with expert tutors in St Louis

Live Classes

Join interactive group sessions with expert instructors

Practice Hub

Thousands of flashcards and learning resources

School Details

Address

3200 Lemay Ferry Rd, St Louis, MO 63125

Phone

(314)467-6000

Website

Visit Website

District

Mehlville R-IX

Need Academic Help?

Get matched with expert tutors for any subject

Find a Tutor

Other Schools in District

Oakville Sr. High

Mosaic Elementary

Point Elementary

Mehlville High School

Hagemann Elementary

Beasley Elementary