Enrollment
395
California · 2024-25 NCES data
Elementary school (grades K-5) · Santa Ana, CA
Guin Foss Elementary
Federal NCES profile for Guin Foss Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
2024-25 NCES dataElementary school (grades K-5)NCES 064015007202
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 21
📋 Attendance 38
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Guin Foss Elementary earns 32/100 on the Resource Investment Index, with class sizes larger than 93% of California schools.
- #31 of 51
- elementary schools in Santa Ana · Resource Index
- 32
- Resource Index · Typical
- 28.2:1
- large classes for California
- 37.4%
- free-lunch eligible
Guin Foss Elementary has class sizes larger than 93% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Guin Foss Elementary ranks #31 of 51 elementary schools in Santa Ana, CA.
School address
District: Tustin Unified · California
NCES ID 064015007202 Verify on NCES CCD record →
Teachers (FTE)
14.0
Federal CCD staff survey
Students per teacher
28.2:1
vs 21.5:1 California avg
+31% vs state
Free-lunch eligible
37.4%
vs 55.5% California avg
-33% vs state
Student-teacher ratio in context
How Guin Foss Elementary compares with California and U.S. medians
What stands out at Guin Foss Elementary
Guin Foss Elementary is a mid-sized elementary school in Santa Ana, California, enrolling 395 students.
Class loads run heavy: 28.2:1 is larger than about 93% of California schools and 31% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 37.4% of students eligible for free meals.
With 395 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,119 statewide peers matched on enrollment and economic need, it ranks mid-pack at #465.
Its student body is led by Hispanic or Latino (65%) and White (19%) (diversity index 53/100).
Counselor availability sits well past the ASCA benchmark, roughly 395 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 24.8% of students chronically absent per the 2021-22 civil-rights collection.
Among Santa Ana's elementary schools, it stands alongside Mcfadden Institute of Technology (1,074 students): Guin Foss Elementary is smaller than that campus by headcount and runs heavier classes (28.2:1 vs 20.3:1).
Tustin Unified also operates Arnold O. Beckman High (2,776 students) and Foothill High (2,126 students) alongside Guin Foss Elementary.
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 Guin Foss Elementary compares
Guin Foss Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 28.2:1 | ▲ 31% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 37.4% | ▼ 33% | 55.5% | 51.7% |
| Enrollment | 395 | top 61% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
28.2:1
Leaner classes than 2% of US schools, heavier class loads than most.
395
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
37.4%
free-lunch eligible
- 33% below the California average of 55.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
28.2:1
students per teacher
- 31% above state mean
Top 93% in California - lower ratio than 7% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
24.8%
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
$13,372
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 395 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 4 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 1.3 per 100 students. Reported via the Civil Rights Data Collection.
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 65.3%
White 18.7%
Asian 8.9%
Two or More 6.3%
African American 0.8%
Largest group: Hispanic or Latino at 65.3% of enrollment.
Student-body diversity index 52.7/100
Simpson diversity index - at 52.7, Guin Foss Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Tustin Unified, which includes Guin Foss Elementary.
$13,372
Per student
-19%
vs California
Avg $16,509
-19%
vs U.S.
Avg $16,593
Revenue mix
Local 53.9%
State 38.0%
Federal 8.1%
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 Guin Foss Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arnold O. Beckman High | Larger | Lower economic need | Lower S:T ratio |
| Foothill High | Larger | Lower economic need | Lower S:T ratio |
| Tustin High | Larger | Higher economic need | Lower S:T ratio |
| Orchard Hills | Larger | Lower economic need | Similar S:T ratio |
| Sycamore Magnet Academy | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Guin Foss Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,776
- Students per teacher
- 26.4:1
- Resource Index
- 36/100
- Enrollment
- 2,126
- Students per teacher
- 25.6:1
- Resource Index
- 42/100
- Enrollment
- 1,627
- Students per teacher
- 20.3:1
- Resource Index
- 43/100
- Enrollment
- 1,373
- Students per teacher
- 29.2:1
- Resource Index
- 38/100
- Enrollment
- 1,085
- Students per teacher
- 22.6:1
- Resource Index
- 22/100
Similar elementary schools in Santa Ana
6 comparable elementary schools (grades K-5) serving the same city.
Mcfadden Institute of Technology
Standard public school
1,074 students 20.3:1 students per teacher
El Sol Santa Ana Science and Arts Academy
Standard public school
980 students 20.4:1 students per teacher
Santiago Elementary
Standard public school
906 students 22.6:1 students per teacher
Romero-Cruz Academy
Standard public school
827 students 17.2:1 students per teacher
Greenville Fundamental Elementary
Standard public school
817 students 21.5:1 students per teacher
Manuel Esqueda Elementary
Standard public school
811 students 19.8:1 students per teacher
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~395 students)
Next steps
Verify locally before acting on Guin Foss Elementary's federal record.
- Compare Guin Foss Elementary against another school. Compare schools
- Tustin Unified'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 Guin Foss Elementary
How many students attend Guin Foss Elementary?
Guin Foss Elementary has 395 students enrolled. It is an elementary school in Santa Ana, CA.
What is the student-teacher ratio at Guin Foss Elementary?
The student-teacher ratio at Guin Foss Elementary is 28.2:1, which is 31% higher than the California average of 21.5:1 and 80% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Guin Foss Elementary?
37.4% of students at Guin Foss Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Guin Foss Elementary?
The largest demographic group at Guin Foss Elementary is Hispanic or Latino at 65.3% of enrollment, in Santa Ana, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.7/100.
What is the Resource Investment Index for Guin Foss Elementary?
Guin Foss Elementary has a Resource Investment Index of 32/100 (typical 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).
How does Guin Foss Elementary rank among elementary schools in Santa Ana?
By Resource Investment Index, Guin Foss Elementary ranks #31 of 51 elementary schools in Santa Ana, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Santa Ana on the city page.
Is Guin Foss Elementary a good school?
Guin Foss Elementary earns 32/100 on the Resource Investment Index, with class sizes larger than 93% of California 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 Tustin Unified?
Besides Guin Foss Elementary, Tustin Unified also operates Arnold O. Beckman High (2,776 students), Foothill High (2,126 students), and Tustin High (1,627 students). See the Tustin Unified 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.