Enrollment
260
Arizona · 2024-25 NCES data
Elementary school (grades K-5) · San Luis, AZ
Sun Valley Elementary School
Federal NCES profile for Sun Valley Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 0/100.
2024-25 NCES dataElementary school (grades K-5)NCES 040789003814
👥 S:T ratio 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sun Valley Elementary School earns 0/100 on the Resource Investment Index, with class sizes larger than 95% of Arizona schools. It is also less racially and ethnically mixed than most Arizona schools.
- #7 of 7
- elementary schools in San Luis · Resource Index
- 0
- Resource Index · Lower
- 26:1
- large classes for Arizona
- 3.2%
- free-lunch eligible
Sun Valley Elementary School has class sizes larger than 95% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Sun Valley Elementary School ranks #7 of 7 elementary schools in San Luis, AZ.
School address
District: Somerton Elementary District (4500) · Arizona
NCES ID 040789003814 Verify on NCES CCD record →
Teachers (FTE)
10.0
Federal CCD staff survey
Students per teacher
26:1
vs 17:1 Arizona avg
+53% vs state
Free-lunch eligible
3.2%
vs 48.3% Arizona avg
-93% vs state
Student-teacher ratio in context
How Sun Valley Elementary School compares with Arizona and U.S. medians
What stands out at Sun Valley Elementary School
Sun Valley Elementary School is a lower-poverty, mid-sized elementary school in San Luis, Arizona, enrolling 260 students.
Class loads run heavy: 26:1 is larger than about 95% of Arizona schools and 53% above the 17:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 3.2% free-meal eligibility runs 93% below the Arizona average.
Enrollment of 260 puts it in the smaller third of Arizona schools by headcount.
Its Resource Investment Index trails 100% of the 2,064 Arizona schools with a score on record, one of the lower results on this measure.
Among 16 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #16, in the lower tier once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (100% of enrollment), among the less diverse in the state (diversity index 1/100).
Its district draws 32.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among San Luis's elementary schools, it stands alongside Cesar Chavez Elementary (766 students): Sun Valley Elementary School is smaller than that campus by headcount and runs leaner classes (26:1 vs 29.5:1).
Somerton Elementary District (4500) also operates Somerton Middle School (697 students) and Tierra Del Sol Elementary School (579 students) alongside Sun Valley Elementary 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 Sun Valley Elementary School compares
Sun Valley Elementary 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 | 26:1 | ▲ 53% | 17:1 | 15.7:1 |
| Free-lunch eligible | 3.2% | ▼ 93% | 48.3% | 51.7% |
| Enrollment | 260 | top 66% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
26:1
Leaner classes than 4% of US schools, heavier class loads than most.
260
Bigger than 27% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
3.2%
free-lunch eligible
- 93% below the Arizona average of 48.3%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
26:1
students per teacher
- 53% above state mean
Top 95% in Arizona - lower ratio than 5% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Funding equity
$10,939
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.
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 99.6%
American Indian / Alaska Native 0.4%
Largest group: Hispanic or Latino at 99.6% of enrollment.
Student-body diversity index 0.8/100
Simpson diversity index - at 0.8, Sun Valley Elementary School is less mixed than the Arizona school average of 47.2.
Funding & spending
District-wide per-pupil expenditure for Somerton Elementary District (4500), which includes Sun Valley Elementary School.
$10,939
Per student
-17%
vs Arizona
Avg $13,145
-34%
vs U.S.
Avg $16,593
Revenue mix
Local 6.5%
State 61.5%
Federal 32.0%
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 Sun Valley Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Somerton Middle School | Larger | Higher economic need | Lower S:T ratio |
| Tierra Del Sol Elementary School | Larger | Higher economic need | Lower S:T ratio |
| Orange Grove Elementary School | Larger | Higher economic need | Lower S:T ratio |
| Desert Sonora Elementary School | Larger | Higher economic need | Lower S:T ratio |
| Encanto Learning Center | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Sun Valley Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 697
- Students per teacher
- 19.9:1
- Resource Index
- 13/100
- Enrollment
- 579
- Students per teacher
- 16.5:1
- Resource Index
- 21/100
- Enrollment
- 412
- Students per teacher
- 20.6:1
- Resource Index
- 16/100
- Enrollment
- 406
- Students per teacher
- 16.2:1
- Resource Index
- 21/100
- Enrollment
- 403
- Students per teacher
- 17.5:1
- Resource Index
- 20/100
Similar elementary schools in San Luis
6 comparable elementary schools (grades K-5) serving the same city.
Cesar Chavez Elementary
Standard public school
766 students 29.5:1 students per teacher
Desert View Elementary
Standard public school
760 students 27.1:1 students per teacher
Arizona Desert Elementary School
Standard public school
662 students 30.1:1 students per teacher
Ed Pastor Elementary 4
Standard public school
646 students 28.1:1 students per teacher
Harvest Preparatory Academy San Luis Az
Standard public school
575 students
Rio Colorado Elementary School
Standard public school
523 students 30.8:1 students per teacher
Similar elementary 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 (~260 students)
Similar student-teacher ratio (~26:1)
Next steps
Verify locally before acting on Sun Valley Elementary School's federal record.
- Compare Sun Valley Elementary School against another school. Compare schools
- Somerton Elementary District (4500)'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 Sun Valley Elementary School
How many students attend Sun Valley Elementary School?
Sun Valley Elementary School has 260 students enrolled. It is an elementary school in San Luis, AZ.
What is the student-teacher ratio at Sun Valley Elementary School?
The student-teacher ratio at Sun Valley Elementary School is 26:1, which is 53% higher than the Arizona average of 17:1 and 66% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Sun Valley Elementary School?
3.2% of students at Sun Valley Elementary School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Sun Valley Elementary School?
The largest demographic group at Sun Valley Elementary School is Hispanic or Latino at 99.6% of enrollment, in San Luis, AZ.
What is the Resource Investment Index for Sun Valley Elementary School?
Sun Valley Elementary School has a Resource Investment Index of 0/100 (lower reported resources relative to schools nationally) based on 1 factor: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Sun Valley Elementary School rank among elementary schools in San Luis?
By Resource Investment Index, Sun Valley Elementary School ranks #7 of 7 elementary 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 elementary schools in San Luis on the city page.
Is Sun Valley Elementary School a good school?
Sun Valley Elementary School earns 0/100 on the Resource Investment Index, with class sizes larger than 95% of Arizona schools. It is also less racially and ethnically mixed than most Arizona schools. 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 Somerton Elementary District (4500)?
Besides Sun Valley Elementary School, Somerton Elementary District (4500) also operates Somerton Middle School (697 students), Tierra Del Sol Elementary School (579 students), and Orange Grove Elementary School (412 students). See the Somerton Elementary District (4500) 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.