Enrollment
1,542
California · 2024-25 NCES data
2024-25 NCES data Other / mixed grade configuration NCES 060157800869 Charter school
Mueller Charter (Robert L.) — Chula Vista, CA
Federal NCES profile for Mueller Charter (Robert L.), including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 45/100.
👥 Class size 11
🌟 Gifted program 70
🎓 Counselors 52
📋 Attendance 49
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Mueller Charter (Robert L.) District · California
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
72.0
Federal CCD staff survey
Students per teacher
22.3:1
vs 21.6:1 California avg
+3% vs state
Free-lunch eligible
65.6%
vs 55.5% California avg
+18% vs state
Student-teacher ratio in context
How Mueller Charter (Robert L.) compares with California and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Mueller Charter (Robert L.) reports 1,542 enrolled students to the National Center for Education Statistics (NCES) alongside 72.0 full-time-equivalent teachers, producing a 22.3:1 student-teacher ratio. That figure sits 3% above the California state mean of 21.6:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 40% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 65.6% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 18% above the California average and 27% above the national baseline. Counselor coverage works out to roughly 240 students per counselor, meeting the American School Counselor Association recommendation of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 20.5% according to the 2021-22 Civil Rights Data Collection.
Taken together, these measurements produce a Resource Investment Index of 45/100 (D), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Mueller Charter (Robert L.) compares
Cross-validating school-level NCES values against California state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.3:1 | ▲ 3% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 65.6% | ▲ 18% | 55.5% | 51.8% |
| Enrollment | 1,542 | top 94% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
65.6%
free-lunch eligible
— 18% above the California average of 55.5%
Above the 40% Title I schoolwide threshold — federal funds support the whole school, not individual students.
Staffing depth
22.3:1
students per teacher
— 3% above state mean
Top 53% in California — lower ratio than 47% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
20.5%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Support staff
Counselors6.4 FTE
Per 240 students — the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 21 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.4 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 1,542 Top 94% in California — larger than 6% of 10,006 state schools
Teachers (FTE) 72.0
Students per teacher 22.3:1 +3% vs state
Free-lunch eligible 65.6% +18% vs state
NCES ID 060157800869
Student demographics
Hispanic or Latino 92.4%
White 3.6%
Two or More 1.6%
African American 1.1%
Asian 1.1%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 92.4% of enrollment.
Programs & staff
Gifted & talented Yes
Counselors (FTE) 6.4
Students per counselor 240:1
Discipline & special education
Chronically absent 20.5%
In-school suspensions 0
Out-of-school suspensions 21
Similar other schools in Chula Vista
6 comparable other schools (grades Mixed) serving the same city.
Chula Vista Learning Community Charter
Standard public school
1,397 students 21:1 students per teacher
Hawking S.T.E.a.M. Charter
Standard public school
1,321 students 20.9:1 students per teacher
Pacific Springs Charter
Standard public school
489 students 30.2:1 students per teacher
Learning Choice Academy - Chula Vista
Standard public school
437 students 17.9:1 students per teacher
Sweetwater Secondary
Standard public school
372 students 36.9:1 students per teacher
Palomar High
Alternative education program
269 students 11.7:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Mueller Charter (Robert L.)
How many students attend Mueller Charter (Robert L.)?
Mueller Charter (Robert L.) has 1,542 students enrolled. It is a other school in Chula Vista, CA.
What is the student-teacher ratio at Mueller Charter (Robert L.)?
The student-teacher ratio at Mueller Charter (Robert L.) is 22.3:1, which is 3% higher than the California average of 21.6:1 and 40% higher than the national average of 15.9:1.
What percentage of students receive free lunch at Mueller Charter (Robert L.)?
65.6% of students at Mueller Charter (Robert L.) are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Mueller Charter (Robert L.)?
The largest demographic group at Mueller Charter (Robert L.) is Hispanic or Latino at 92.4%. The school serves a diverse student body in Chula Vista, CA.
What is the Resource Investment Index for Mueller Charter (Robert L.)?
Mueller Charter (Robert L.) has a Resource Investment Index of 45/100 (D) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.