Mission Collegiate High School

Mission CISD

Alton, Texas

438 students

High School, Grades 9–12

(956)323-6120 School Website

438

Students

14.4:1

S:T Ratio

School Snapshot

Key metrics at a glance

Avg SAT Score

1,100

B+

out of 1600

Good

Avg ACT Score

B+

out of 36

Good

AP Courses

A-

courses offered

Good

AP Enrollment

62%

B+

of students

Excellent

Student-Teacher Ratio

14:1

B+

students per teacher

Good

Graduation Rate

95%

A+

Excellent

Reading Proficiency

85%

Excellent

Math Proficiency

54%

Average

This Week at Mission Collegiate – July 8, 2026

55 students practicing on Varsity Tutors

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Explore practice resources for Mission Collegiate students

Academic Grades

Select a grade level to explore courses and resources

Academic Resources

Typical courses and practice resources for students at Mission Collegiate 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 Mission Collegiate High School.

National Tests

July 1, 2026 – July 31, 2026

AP Score Release — All

Score release

July 11, 2026

ACT — National

Test date

July 21, 2026

ACT

Score release

August 14, 2026

ACT

Registration deadline

August 15, 2026

SAT — National

Test date

August 22, 2026

SAT — National

Test date

+27 more national tests this school year

See the full national test & school calendar

After Mission Collegiate High

Where graduates go and what they study

Popular Colleges

University of Texas Rio Grande Valley

Texas A&M University

University of Texas - Austin

South Texas College

Texas State University

Baylor University

The University of Texas at San Antonio

Texas A&M University - Corpus Christi

Popular Majors

Biology

Nursing

Criminal Justice and Law Enforcement Administration

Psychology

Business

Computer Science

Mechanical Engineering

Education

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School Details

Address

605 S Los Ebanos Rd, Alton, TX 78573

Phone

(956)323-6120

Website

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District

Mission CISD

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Other Schools in District

Mission High School

Veterans Memorial High School