Enrollment
646
Arizona · 2024-25 NCES data
Elementary school (grades K-5) · San Luis, AZ
Federal NCES profile for Ed Pastor Elementary 4, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
The verdict
Ed Pastor Elementary 4 earns 21/100 on the Resource Investment Index, with class sizes larger than 98% of Arizona schools. It is also less racially and ethnically mixed than most Arizona schools.
Ed Pastor Elementary 4 has class sizes larger than 98% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Ed Pastor Elementary 4 ranks #3 of 7 elementary schools in San Luis, AZ.
NCES ID 040324002389 Verify on NCES CCD record →
Enrollment
646
Arizona · 2024-25 NCES data
Teachers (FTE)
23.0
Federal CCD staff survey
Students per teacher
28.1:1
vs 17:1 Arizona avg
+65% vs state
Free-lunch eligible
64.9%
vs 48.3% Arizona avg
+34% vs state
How Ed Pastor Elementary 4 compares with Arizona and U.S. medians
Larger classes than state median
28.1:1 - 11.1 above the Arizona state median of 17:1, indicating larger average class loads than typical schools in the state.
Ed Pastor Elementary 4 is a higher-need, mid-sized elementary school in San Luis, Arizona, enrolling 646 students.
Class loads run heavy: 28.1:1 is larger than about 98% of Arizona schools and 65% above the 17:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 64.9% of students eligible for free meals.
Enrollment of 646 puts it in the larger third of Arizona schools by headcount.
Its Resource Investment Index lands in the lower third of 2,064 scored Arizona schools.
Among 315 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #237, 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).
Counselor access is stretched at roughly 538 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 34.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Gadsden Elementary District (4505) spends $10,085 per pupil, 23% below the Arizona average, a leaner-resourced district than most.
Its district draws 28.3% 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): Ed Pastor Elementary 4 is smaller than that campus by headcount and runs leaner classes (28.1:1 vs 29.5:1).
Gadsden Elementary District (4505) also operates Cesar Chavez Elementary (766 students) and Desert View Elementary (760 students) alongside Ed Pastor Elementary 4.
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
Ed Pastor Elementary 4 on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 28.1:1 | ▲ 65% | 17:1 | 15.7:1 |
| Free-lunch eligible | 64.9% | ▲ 34% | 48.3% | 51.7% |
| Enrollment | 646 | top 25% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 99.7% of enrollment.
Simpson diversity index - at 0.6, Ed Pastor Elementary 4 is less mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Gadsden Elementary District (4505), which includes Ed Pastor Elementary 4.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cesar Chavez Elementary | Similar size | Higher economic need | Similar S:T ratio |
| Desert View Elementary | Similar size | Higher economic need | Similar S:T ratio |
| Arizona Desert Elementary School | Similar size | Higher economic need | Higher S:T ratio |
| Southwest Jr. High School | Similar size | Higher economic need | Lower S:T ratio |
| San Luis Middle School | Similar size | Higher economic need | Higher S:T ratio |
Comparisons are relative to Ed Pastor Elementary 4's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Ed Pastor Elementary 4's federal record.
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.
Ed Pastor Elementary 4 has 646 students enrolled. It is an elementary school in San Luis, AZ.
The student-teacher ratio at Ed Pastor Elementary 4 is 28.1:1, which is 65% higher than the Arizona average of 17:1 and 79% higher than the national average of 15.7:1.
64.9% of students at Ed Pastor Elementary 4 are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at Ed Pastor Elementary 4 is Hispanic or Latino at 99.7% of enrollment, in San Luis, AZ.
Ed Pastor Elementary 4 has a Resource Investment Index of 21/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Ed Pastor Elementary 4 ranks #3 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.
Ed Pastor Elementary 4 earns 21/100 on the Resource Investment Index, with class sizes larger than 98% 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.
Besides Ed Pastor Elementary 4, 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.
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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Ed Pastor Elementary 4, San Luis AZ.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/ed-pastor-elementary-4-az
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.