Enrollment
2,682
Arizona · 2024-25 NCES data
High school (grades 9-12) · San Luis, AZ
San Luis High School
Federal NCES profile for San Luis High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 040963003076
👥 S:T ratio 0
📚 AP courses 75
🌟 Gifted program 70
🎓 Counselors 23
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
San Luis High School earns 42/100 on the Resource Investment Index, with class sizes larger than 96% of Arizona schools. It is also one of the largest schools in Arizona.
- #2 of 12
- public schools in San Luis · Resource Index
- 42
- Resource Index · Typical
- 26.8:1
- large classes for Arizona
- 56.0%
- free-lunch eligible
San Luis High School has class sizes larger than 96% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, San Luis High School ranks #2 of 12 public schools in San Luis, AZ.
School address
District: Yuma Union High School District (4507) · Arizona
NCES ID 040963003076 Verify on NCES CCD record →
Teachers (FTE)
100.0
Federal CCD staff survey
Students per teacher
26.8:1
vs 17:1 Arizona avg
+58% vs state
Free-lunch eligible
56.0%
vs 48.3% Arizona avg
+16% vs state
Student-teacher ratio in context
How San Luis High School compares with Arizona and U.S. medians
What stands out at San Luis High School
San Luis High School is a higher-need, large high school in San Luis, Arizona, enrolling 2,682 students.
Class loads run heavy: 26.8:1 is larger than about 96% of Arizona schools and 58% above the 17:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 56.0% lands close to the Arizona typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in Arizona, bigger than 99% of state schools at 2,682 students.
Its Resource Investment Index sits near the middle of the pack among 2,064 scored Arizona schools.
Against 26 statewide peers matched on enrollment and economic need, it ranks mid-pack at #16.
Its student body is predominantly Hispanic or Latino (100% of enrollment), among the less diverse in the state (diversity index 1/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 383 students sharing each counselor, though short of the most stretched campuses.
The surrounding Yuma Union High School District (4507) spends $9,544 per pupil, 27% below the Arizona average, a leaner-resourced district than most.
Its district draws 19.7% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among San Luis's high schools, it stands alongside Ppep Tec - Cesar Chavez Learning Center (187 students): San Luis High School is larger than that campus by headcount.
Yuma Union High School District (4507) also operates Cibola High School (2,434 students) and Gila Ridge High School (2,249 students) alongside San Luis High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How San Luis High School compares
San Luis High School on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 26.8:1 | ▲ 58% | 17:1 | 15.7:1 |
| Free-lunch eligible | 56.0% | ▲ 16% | 48.3% | 51.7% |
| Enrollment | 2,682 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
26.8:1
Leaner classes than 3% of US schools, heavier class loads than most.
2,682
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
56.0%
free-lunch eligible
- 16% above the Arizona average of 48.3%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
26.8:1
students per teacher
- 58% above state mean
Top 96% in Arizona - lower ratio than 4% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Funding equity
$9,544
per pupil, district-wide
- below Arizona avg of $13,145
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors7.0 FTE
Per 383 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 44 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.6 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 99.7%
White 0.1%
Largest group: Hispanic or Latino at 99.7% of enrollment.
Student-body diversity index 0.6/100
Simpson diversity index - at 0.6, San Luis High School is less mixed than the Arizona school average of 47.2.
Programs
AP courses offered 15
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Yuma Union High School District (4507), which includes San Luis High School.
$9,544
Per student
-27%
vs Arizona
Avg $13,145
-42%
vs U.S.
Avg $16,593
Revenue mix
Local 24.2%
State 56.1%
Federal 19.7%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How San Luis High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cibola High School | Similar size | Similar economic need | Similar S:T ratio |
| Gila Ridge High School | Similar size | Lower economic need | Similar S:T ratio |
| Kofa High School | Smaller | Similar economic need | Lower S:T ratio |
| Yuma High School | Smaller | Higher economic need | Lower S:T ratio |
| Vista High School | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to San Luis High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,434
- Students per teacher
- 25.6:1
- Resource Index
- 33/100
- Enrollment
- 2,249
- Students per teacher
- 27.8:1
- Resource Index
- 13/100
- Enrollment
- 1,976
- Students per teacher
- 19.6:1
- Resource Index
- 47/100
- Enrollment
- 1,040
- Students per teacher
- 24.8:1
- Resource Index
- 22/100
- Enrollment
- 175
- Students per teacher
- 11.7:1
- Resource Index
- 49/100
Similar high schools in San Luis
1 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Arizona, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~2,682 students)
Next steps
Verify locally before acting on San Luis High School's federal record.
- Compare San Luis High School against another school. Compare schools
- Yuma Union High School District (4507)'s spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about San Luis High School
How many students attend San Luis High School?
San Luis High School has 2,682 students enrolled. It is a high school in San Luis, AZ.
What is the student-teacher ratio at San Luis High School?
The student-teacher ratio at San Luis High School is 26.8:1, which is 58% higher than the Arizona average of 17:1 and 71% higher than the national average of 15.7:1.
What percentage of students receive free lunch at San Luis High School?
56.0% of students at San Luis High School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of San Luis High School?
The largest demographic group at San Luis High School is Hispanic or Latino at 99.7% of enrollment, in San Luis, AZ.
What is the Resource Investment Index for San Luis High School?
San Luis High School has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does San Luis High School rank among public schools in San Luis?
By Resource Investment Index, San Luis High School ranks #2 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.
Is San Luis High School a good school?
San Luis High School earns 42/100 on the Resource Investment Index, with class sizes larger than 96% of Arizona schools. It is also one of the largest schools in Arizona. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Yuma Union High School District (4507)?
Besides San Luis High School, Yuma Union High School District (4507) also operates Cibola High School (2,434 students), Gila Ridge High School (2,249 students), and Kofa High School (1,976 students). See the Yuma Union High School District (4507) district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.