- Enrollment
- 766
- Students per teacher
- 29.5:1
- Resource Index
- 17/100
Middle school (grades 6-8) · San Luis, AZ
San Luis Middle School
Federal NCES profile for San Luis Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 28/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 040324001101
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 38
📋 Attendance 3
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
San Luis Middle School earns 28/100 on the Resource Investment Index, with class sizes larger than 99% of Arizona schools. It is also less racially and ethnically mixed than most Arizona schools.
- #5 of 12
- public schools in San Luis · Resource Index
- 28
- Resource Index · Lower
- 32.6:1
- large classes for Arizona
- 90.9%
- free-lunch eligible
San Luis Middle School has class sizes larger than 99% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, San Luis Middle School ranks #5 of 12 public schools in San Luis, AZ.
School address
District: Gadsden Elementary District (4505) · Arizona
NCES ID 040324001101 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+43 students YoY
San Luis Middle School grew from 570 students in 2022-23 to 613 in 2023-24 (+7.5%).
Teacher FTE added 19.0 → 25.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+43 students YoY 040324001101 · San Luis, AZ Middle · MID · TRAD
620 enr · 32.6:1 · 90.9% lunch · RII 28
Nearest enrollment peer: Cesar Chavez Elementary (766 students)
San Luis Middle School grew from 570 students in 2022-23 to 613 in 2023-24 (+7.5%). Teacher FTE added 19.0 → 25.4 across the same CCD years. Read with this school → · District book → · Arizona schools → · Find another →
San Luis Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Cesar Chavez E
Cesar Chavez Elementary
766 students
- Desert View El
Desert View Elementary
760 students
- Arizona Desert
Arizona Desert Elementary School
662 students
- Southwest Jr.
Southwest Jr. High School
652 students
- Ed Pastor Elem
Ed Pastor Elementary 4
646 students
- This school
San Luis Middle School
620 students
What this shows San Luis Middle School reports 620 students on the CCD universe file.
How San Luis Middle School compares
San Luis Middle School is a growing campus on CCD: ratios and free-lunch share vs Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 32.6:1 | ▲ 92% | 17:1 | 15.7:1 |
| Free-lunch eligible | 90.9% | ▲ 88% | 48.3% | 51.7% |
| Enrollment | 620 | top 27% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
32.6:1
Leaner classes than 1% of US schools, heavier class loads than most.
620
Bigger than 74% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
90.9%
free-lunch eligible
- 88% above the Arizona average of 48.3%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
32.6:1
students per teacher
- 92% above state mean
Top 99% in Arizona - lower ratio than 1% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
38.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$10,364
per pupil, district-wide
- below Arizona avg of $13,502
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 310 students, the combined health-and-guidance staffing load for this school.
Discipline context
78
in-school suspensions + 3 out-of-school
Suspension rate: 12.6 per 100 students. Combined in-school and out-of-school rate: 13.1 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
Hispanic or Latino 99.4%
White 0.6%
Largest group: Hispanic or Latino at 99.4% of enrollment.
Student-body diversity index 1.2/100
Simpson diversity index - at 1.2, San Luis Middle School is less mixed than the Arizona school average of 47.2.
Programs
Gifted & talented Yes
District finance for Gadsden Elementary District (4505) reports $10,364 per pupil (NCES F-33) - open the district page for the full revenue mix.
How San Luis Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cesar Chavez Elementary | Similar size | Lower economic need | Lower S:T ratio |
| Desert View Elementary | Similar size | Lower economic need | Lower S:T ratio |
| Arizona Desert Elementary School | Similar size | Similar economic need | Lower S:T ratio |
| Southwest Jr. High School | Similar size | Lower economic need | Lower S:T ratio |
| Ed Pastor Elementary 4 | Similar size | Lower economic need | Lower S:T ratio |
Comparisons are relative to San Luis Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 760
- Students per teacher
- 27.1:1
- Resource Index
- 24/100
- Enrollment
- 662
- Students per teacher
- 30.1:1
- Resource Index
- 17/100
- Enrollment
- 652
- Students per teacher
- 26.1:1
- Resource Index
- 26/100
- Enrollment
- 646
- Students per teacher
- 28.1:1
- Resource Index
- 21/100
Similar middle schools in San Luis
1 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~620 students)
Frequently asked questions about San Luis Middle School
How many students attend San Luis Middle School?
San Luis Middle School has 620 students enrolled. It is a middle school in San Luis, AZ. CCD year-over-year: 570 (2022-23) → 613 (2023-24), up 43.
What is the student-teacher ratio at San Luis Middle School?
The student-teacher ratio at San Luis Middle School is 32.6:1, which is 92% higher than the Arizona average of 17:1 and 108% higher than the national average of 15.7:1.
What percentage of students receive free lunch at San Luis Middle School?
90.9% of students at San Luis Middle School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of San Luis Middle School?
The largest demographic group at San Luis Middle School is Hispanic or Latino at 99.4% of enrollment, in San Luis, AZ.
What is the Resource Investment Index for San Luis Middle School?
San Luis Middle School has a Resource Investment Index of 28/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does San Luis Middle School rank among public schools in San Luis?
By Resource Investment Index, San Luis Middle School ranks #5 of 12 public schools in San Luis, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in San Luis on the city page.
What other schools are in Gadsden Elementary District (4505)?
Besides San Luis Middle School, Gadsden Elementary District (4505) also operates Cesar Chavez Elementary (766 students), Desert View Elementary (760 students), and Arizona Desert Elementary School (662 students). See the Gadsden Elementary District (4505) district page for the complete list.