Mission Hills High

Mission Hills High

San Marcos Unified School District

San Marcos, California

2,893 students

High School, Grades 9–12

(760)290-2700

2,893

Students

27:1

S:T Ratio

School Snapshot

Key metrics at a glance

Avg SAT Score

1,200

A-

out of 1600

Good

Avg ACT Score

A-

out of 36

Good

AP Courses

A+

courses offered

Excellent

AP Enrollment

31%

C+

of students

Good

Student-Teacher Ratio

27:1

students per teacher

Below Avg

Graduation Rate

95%

A+

Excellent

This Week at Mission Hills High – August 24, 2026

378 students practicing on Varsity Tutors

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students

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ACT Prep

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MATH

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Science

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Academic Grades

Select a grade level to explore courses and resources

Academic Resources

Typical courses and practice resources for students at Mission Hills High

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 Hills High.

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 28, 2026

SAT — National

Registration deadline

September 1, 2026

ACT — National

Late registration deadline

September 1, 2026

SAT — National

Late registration deadline

September 4, 2026

SAT — National

Score release

+75 more national tests this school year

State Assessments

March 1, 2027 – June 30, 2027

CAASPP — Statewide Window

Testing window

School Milestones

October 1, 2026 – October 15, 2026

Private School Affidavit Filing Window

Other

See the full national test & school calendar

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School Details

Address

1 Mission Hills Ct., San Marcos, CA 92069

Phone

(760)290-2700

District

San Marcos Unified School District

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Other Schools in District

Mission Hills High

Joli Ann Leichtag Elementary