High · California

William Tell Aggeler Opportunity High

AlternativeFree meals for all

William Tell Aggeler Opportunity High, a public high school in Chatsworth, California: grades 7–12, 61 students, 10.0 students per teacher (2024–25 school year). Part of Los Angeles Unified.

Size and class size

Compared with high schools of the same state and the whole country. Students per teacher counts every full-time-equivalent teacher, not the size of each class.

Students: 61
Teachers (FTE): 6.1
Students per teacher: 10.0
Grades: 7–12; High

Fewer students per teacher than 87% of high schools in California

Median 19.1 · 2,120 schools compared

Fewer students per teacher than 81% of high schools in the US

Median 14.4 · 20,809 schools compared

Smaller than 83% of high schools in California

Median 462 · 2,126 schools compared

Smaller than 87% of high schools in the US

Median 414 · 22,064 schools compared

State test results

Share of students scoring proficient or above on California's tests, grades 3–8, 2024–25 school year.

Reading and writing

California: 47%

Not published: too few students tested.

Smarter Balanced; proficient means Levels 3-4

Math

California: 38%

Not published: too few students tested.

Smarter Balanced; proficient means Levels 3-4

Each state sets its own test and its own bar for “proficient”, so results compare only within a state. Results also follow family income closely: a school's share reflects its students' circumstances as much as its teaching.

Data sourced from the Education Data Center (www.eddatacenter.org), a partner project of the National Center for Civic Innovation, Inc. State Assessment Data Repository version 3.1. More information about these assessments over time, including participation and test changes, is available from the Education Data Center.

What it offers

Grades: High · Grades 7–12
Type: District school · Alternative
Instruction: In person
Meals: Free breakfast and lunch for every student
Area: Large city
Run by: Los Angeles Unified

Which school a home is assigned to is decided by the district's attendance zones; check with Los Angeles Unified.

Location

Address: 21050 Plummer St., Chatsworth, CA 91311
Phone: (818)341-1232
City or town: Los Angeles
County: Los Angeles County

Website Quality of life in Los Angeles Schools in Los Angeles

Nearby high schools

The closest public high schools by straight-line distance. Attendance zones are set by each district.

School	Grades	Students	Students / teacher
Aggeler Community DayAlternative	7–12	23	9.1	0.0 mi
Stoney Point ContinuationAlternativeFree meals for all	9–12	105	11.6	0.7 mi
Chatsworth Charter HighCharterFree meals for all	9–12	1,743	21.3	0.8 mi
Joaquin Miller Career and Transition CenterSpecial educationFree meals for all	12	164	9.2	2.9 mi
Grover Cleveland Charter HighCharterFree meals for all	9–12	2,719	22.6	3.0 mi
Valley International Preparatory HighCharterFree meals for all	9–12	259	14.3	3.2 mi

Sources

Public schools and school districts (National Center for Education Statistics · U.S. Census Bureau), 2024–25 school year. NCES Common Core of Data and EDGE public school geocodes; U.S. Census Bureau, Annual Survey of School System Finances and cartographic boundary files (places).
State Assessment Data Repository (Education Data Center), 2024–25 school year. Data sourced from the Education Data Center (www.eddatacenter.org), a partner project of the National Center for Civic Innovation, Inc. State Assessment Data Repository v3.1.

Analisa does not rate schools. Figures are what a school has (students, teachers, programs), placed among schools of the same level; state test results are compared only within a state.

NCES 062271002802