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Charter school · Mueller Charter (robert L.) District · Chula Vista, California

Mueller Charter (robert L.)

Mueller Charter (robert L.) rates 6.9 on our ten-point scale and ranks 3,494 of 9,557 schools in California.

Schools, 1 to 10This campus on our ten-point scale.
6.9this school

6.9 on a one-to-ten scale.

#3,494 of 9,557 schools in California

The brief

A charter school in Chula Vista, CA where students score 9 points above what's typical for similar communities.

It ranks 3,494 of 9,557 schools in California and 1 of 1 in Mueller Charter (robert L.) District.

Mueller Charter (robert L.) is a charter school: it enrolls by application rather than by address, so check its enrollment process directly before choosing a neighborhood for it.

Math37%1 point below the California average of 38%2025 CAASPP
Reading52%3 points above the California average of 49%2025 CAASPP
Proficiency has fallen 6 points since 2019, to 44% in 2025, across a 8-year record (2018–2025).2025 CAASPP; 38 test records from CA state assessments and EdFacts (NCES).

What the rating is made of, each out of 10

Student Progress
5.8
25% of the rating
Academics
7.8
25% of the rating
College Readiness
8.0
30% of the rating
Resources & Environment
5.7
20% of the rating
About this school's data1 correction under review · rating: low confidence · 7 sources, 2019–2025

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.

Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.

Full Profile · 4/4 metrics

Multi-year averages used by the rating model: math 38% (multi-year average, 2018-2025) · reading/ELA 52% (multi-year average, 2018-2025).

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2025 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
State assessments · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 91910; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2018-2025; directory SY 2023–24

The neighborhood

Where it sits, and what the area looks like.
Mueller Charter (robert L.) and the 20 nearest schools, each pin colored by its score.Pins are locations, not attendance boundaries. Verify the enrollment path with the district.

The area

Median income
$87,705
Median home value
$676,700
Median rent
$1,930/mo
College educated
28.6%
Homeownership
50.6%
Poverty rate
10.3%

U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 91910; this is area context, not an attendance boundary.

Getting around

Walk Score
59
Somewhat Walkable
Transit Score
57
Good Transit
Bike Score
64
Bikeable
City reported crime
1,420/100K
Reported Part-1 offenses (violent + property + arson) per 100,000 residents, from the FBI Uniform Crime Reporting program for Chula Vista. This is a city-level reported-crime measure, not a school safety rating.

Walk, transit and bike scores byWalk Score

FBI Uniform Crime Reporting · 2025 · city context (Chula Vista), not school-level safety or attendance eligibility. Source details

Source period: 2025. Freshness not available.

Programs and who goes here

What the campus offers, and who it enrolls.

Programs

Athletics
9 sports
4 boys' · 5 girls' · 9 teams (incl. JV) · CRDC via Urban Institute · SY 2021–22
Gifted and talented
Available
A program for qualifying students · CRDC via Urban Institute · SY 2021–22

Who goes here

Free or reduced lunch
72.9%
Students qualifying for federal meal assistance. Shown separately, never in the score.

NCES Common Core of Data (CCD).

Compare nearby

Grade-compatible schools using the same rating model.
Public-school ratings. Grade-compatible schools within 5 miles, best rated first.
  1. 8.5Compare →
  2. 7.2Compare →
  3. Mueller Charter (robert L.)this school
    6.9
  4. not ratedCompare →
Three grade-compatible schools using the same rating model sit within 5 miles, and two rate higher than Mueller Charter (robert L.) among the rated peers.Public-school ratings. Straight-line distance from this campus. Pins are locations, not attendance boundaries; verify the enrollment path with the district.

Distance is proximity only; it is not attendance eligibility.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

The record

What is on file, and where each number came from.

Questions families ask

What grades does Mueller Charter (robert L.) serve?

Mueller Charter (robert L.) serves students in grades Kindergarten through 12th.

How many students attend Mueller Charter (robert L.)?

Mueller Charter (robert L.) has an enrollment of approximately 1,555 students.

What is the student-teacher ratio at Mueller Charter (robert L.)?

The student-teacher ratio at Mueller Charter (robert L.) is 22.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Mueller Charter (robert L.) rank in CA?

Mueller Charter (robert L.) ranks #3,494 of 9,557 schools in CA.

What is Mueller Charter (robert L.)'s MySchoolScout rating?

Mueller Charter (robert L.) has a current MySchoolScout rating of 6.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Mueller Charter (robert L.)?

Based on loaded state assessment records, Mueller Charter (robert L.) has 38% math proficiency (multi-year average, 2018-2025) and 52% reading/ELA proficiency (multi-year average, 2018-2025).

Is Mueller Charter (robert L.) a charter school?

Yes, Mueller Charter (robert L.) is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.

Is Mueller Charter (robert L.) a Title I school?

No, Mueller Charter (robert L.) is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Mueller Charter (robert L.)?

72.9% of students at Mueller Charter (robert L.) qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School facts

Grades
Kindergarten – 12th
Enrollment
1,555
Student-teacher ratio
22.5:1
Teachers (FTE)
69
Type
Regular
Title I
No
Setting
Large City
County
San Diego County
4-year graduation
95%+
Class of 2023
Rank in district
#1 of 1
Schools in district
1
District spending per student
Not available
This value was not reported by the source.
District child poverty rate
Not available
The source release did not match this district identifier.
Area population (ZIP 91910)
77,957
Area average commute
26.2 min
Area median age
38.4

NCES Common Core of Data (CCD) (SY 2023–24).

Related reading

Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.