Olathe South Sr High

Olathe Public Schools

Olathe, Kansas

1,841 students

High School, Grades 9–12

(913)780-7160 School Website

#21

Best ACT in Kansas High Schools

1,841

Students

15.4:1

S:T Ratio

School Snapshot

Key metrics at a glance

Avg SAT Score

1,240

A-

out of 1600

Good

Avg ACT Score

B+

out of 36

Good

AP Courses

A+

courses offered

Excellent

AP Enrollment

22%

of students

Good

Student-Teacher Ratio

15:1

B+

students per teacher

Good

Graduation Rate

92%

A+

Excellent

This Week at Olathe South Sr High – September 20, 2026

247 students practicing on Varsity Tutors

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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 Olathe South Sr 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 Olathe South Sr 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

September 22, 2026

SAT — National

Late registration deadline

September 25, 2026

SAT — National

Score release

September 29, 2026

ACT — National

Late registration deadline

October 1, 2026 – October 30, 2026

PSAT 8/9 — Fall

Testing window

+66 more national tests this school year

See the full national test & school calendar

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School Details

Address

1640 E 151st St, Olathe, KS 66062

Phone

(913)780-7160

Website

Visit Website

District

Olathe Public Schools

Academic Calendar

2026-27

Important dates, holidays, and school events

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Other Schools in District

Washington Elementary

Black Bob Elementary