William Tell Aggeler Opportunity High
Public
High Grades 7–12
Part of Los Angeles Unified
21050 Plummer St., Chatsworth, CA 91311 · (818) 341-1232
Community ratings
Not rated yetBe the first neighbor to rate this school — an overall score plus Teachers, Communication, Safety and Activities.
Academic performanceComing soon
State test scores coming soon
Proficiency and other measures from the CA Department of Education report card, shown against the state average.
At a glance
61Students enrolled
10:1Student–teacher ratio
95%Free / reduced lunch
CitySetting
Alternative Education SchoolSchool type
Enrollment by grade
Grade 81
Grade 923
Grade 1014
Grade 1116
Grade 127
Students
Hispanic · 89%54
White · 3%2
Black · 3%2
Two or more races · 3%2
Asian · 2%1
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
108’20
109’21
58’22
68’23
61’24
Location
21050 Plummer St. Chatsworth
Neighbor reviews
Sign in to rate this school.
School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.