For the 2026 school year, there is 1 public school serving 1,542 students in Mueller Charter (Robert L.) School District. This district's average testing ranking is 7/10, which is in the top 50% of public schools in California.
Public School in Mueller Charter (Robert L.) School District have an average math proficiency score of 36% (versus the California public school average of 34%), and reading proficiency score of 49% (versus the 47% statewide average).
Minority enrollment is 96% of the student body (majority Hispanic), which is more than the California public school average of 80% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
1 School
10,334 Schools
# Students
1,542 Students
5,790,262 Students
# Teachers
67 Teachers
267,580 Teachers
Student-Teacher Ratio
23:1
23:1
Student By Grade
District Rank
Mueller Charter (Robert L.) School District, which is ranked #644 of all 1,904 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 95% has stayed relatively flat over five school years.
Overall District Rank
#632 out of 1932 school districts
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
36%
34%
Reading/Language Arts Test Scores (% Proficient)
49%
47%
Science Test Scores (% Proficient)
26%
29%
Graduation Rate
(21-22)≥95%
87%
Chronically Absent Students
(2022-23)22.7%
27.7%
Students by Ethnicity:
Diversity Score
0.15
0.63
% American Indian
n/a
1%
% Asian
1%
12%
% Hispanic
92%
56%
% Black
1%
5%
% White
4%
20%
% Hawaiian
n/a
n/a
% Two or more races
2%
6%
All Ethnic Groups
Best Mueller Charter (Robert L.) School District Public Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Mueller Charter (Robert L.)
Charter School
(Math: 36% | Reading: 49%)
Rank:
Rank:
7/
Top 50%10
715 I St.
Chula Vista, CA 91910
(619) 422-6192
Chula Vista, CA 91910
(619) 422-6192
Gr: K-12 | 1,542 students Student-teacher ratio: 23:1 Minority enrollment: 96%
Frequently Asked Questions
How many schools belong to Mueller Charter (Robert L.) School District?
Mueller Charter (Robert L.) School District manages 1 public schools serving 1,542 students.
What is the rank of Mueller Charter (Robert L.) School District?
Mueller Charter (Robert L.) School District is ranked #644 out of 1,904 school districts in California (top 50%) based off of combined math and reading proficiency testing data for the 2022-2023 school year.
What is the racial composition of students in Mueller Charter (Robert L.) School District?
92% of Mueller Charter (Robert L.) School District students are Hispanic, 4% of students are White, 2% of students are Two or more races, 1% of students are Asian, and 1% of students are Black.
What is the student/teacher ratio of Mueller Charter (Robert L.) School District?
Mueller Charter (Robert L.) School District has a student/teacher ratio of 23:1, which is higher than the California state average of 22:1.
Recent Articles
Media Literacy as a Core Skill: How to Tell if a School Teaches It Well
Learn how to evaluate whether a public school teaches media literacy effectively, from fact-checking and source evaluation to digital citizenship and critical thinking.
Screen Time, Paper Learning, and the New Back-to-Basics Debate
Explore why some public schools are reducing screen time, bringing back paper learning, and rethinking the balance between technology and traditional instruction.
Student Data, AI Tools, and Privacy: Questions to Ask Your District
Learn how public schools use AI, protect student data, and the key privacy questions every parent should ask their school district in 2026.
