Enrollment
134
California · 2024-25 NCES data
Elementary school (grades K-5) · Lockwood, CA
San Antonio Elementary
Federal NCES profile for San Antonio Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063405005342
👥 S:T ratio 33
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
San Antonio Elementary earns 21/100 on the Resource Investment Index, even as it posts class sizes smaller than 84% of California schools.
- 21
- Resource Index · Lower
- 16.8:1
- small classes for California
- 38.7%
- free-lunch eligible
- 134
- students enrolled
San Antonio Elementary has class sizes smaller than 84% of California schools. Computed live against every California school reporting to NCES.
School address
District: San Antonio Union Elementary · California
NCES ID 063405005342 Verify on NCES CCD record →
Teachers (FTE)
8.0
Federal CCD staff survey
Students per teacher
16.8:1
vs 21.5:1 California avg
-22% vs state
Free-lunch eligible
38.7%
vs 55.5% California avg
-30% vs state
Student-teacher ratio in context
How San Antonio Elementary compares with California and U.S. medians
What stands out at San Antonio Elementary
San Antonio Elementary is a small elementary school in Lockwood, California, enrolling 134 students.
Class sizes run a bit leaner than typical: 16.8:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 38.7% of students eligible for free meals.
Enrollment of 134 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 232 similarly sized, similarly resourced-need California schools statewide, it ranks #206, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (49%) and White (40%) (diversity index 59/100).
Chronic absenteeism is elevated: 42.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
San Antonio Union Elementary operates only this one school, so San Antonio Elementary has no district-mates to compare against locally.
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 Antonio Elementary compares
San Antonio 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 | 16.8:1 | ▼ 22% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 38.7% | ▼ 30% | 55.5% | 51.7% |
| Enrollment | 134 | top 87% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.8:1
Leaner classes than 32% of US schools, heavier class loads than most.
134
Bigger than 13% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
38.7%
free-lunch eligible
- 30% 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
16.8:1
students per teacher
- 22% below state mean
Top 16% in California - lower ratio than 84% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
42.5%
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
$16,844
per pupil, district-wide
- above California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 4 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 3.0 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 49.3%
White 40.3%
Two or More 6.7%
African American 2.2%
Asian 1.5%
Largest group: Hispanic or Latino at 49.3% of enrollment.
Student-body diversity index 58.9/100
Simpson diversity index - at 58.9, San Antonio Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for San Antonio Union Elementary, which includes San Antonio Elementary.
$16,844
Per student
+2%
vs California
Avg $16,509
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 39.3%
State 46.4%
Federal 14.4%
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.
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 (~134 students)
Similar student-teacher ratio (~16.8:1)
Next steps
Verify locally before acting on San Antonio Elementary's federal record.
- Compare San Antonio Elementary against another school. Compare schools
- San Antonio Union Elementary'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 Antonio Elementary
How many students attend San Antonio Elementary?
San Antonio Elementary has 134 students enrolled. It is an elementary school in Lockwood, CA.
What is the student-teacher ratio at San Antonio Elementary?
The student-teacher ratio at San Antonio Elementary is 16.8:1, which is 22% lower than the California average of 21.5:1 and 7% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at San Antonio Elementary?
38.7% of students at San Antonio Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of San Antonio Elementary?
The largest demographic group at San Antonio Elementary is Hispanic or Latino at 49.3% of enrollment, in Lockwood, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.9/100.
What is the Resource Investment Index for San Antonio Elementary?
San Antonio Elementary has a Resource Investment Index of 21/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Is San Antonio Elementary a good school?
San Antonio Elementary earns 21/100 on the Resource Investment Index, even as it posts class sizes smaller than 84% 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 San Antonio Union Elementary?
None reported; San Antonio Union Elementary operates only San Antonio Elementary as a public school district in NCES's records.
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.