Enrollment
369
California · 2024-25 NCES data
Elementary school (grades K-5) · Acampo, CA
Joe Serna Jr. Charter
Federal NCES profile for Joe Serna Jr. Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062223008617Charter school
👥 S:T ratio 18
🌟 Gifted program 70
📋 Attendance 48
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Joe Serna Jr. Charter earns 45/100 on the Resource Investment Index, with class sizes near the California median.
- #1 of 3
- elementary schools in Acampo · Resource Index
- 45
- Resource Index · Typical
- 20.5:1
- students per teacher
- 52.9%
- free-lunch eligible
Joe Serna Jr. Charter has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Joe Serna Jr. Charter ranks #1 of 3 elementary schools in Acampo, CA.
School address
District: Lodi Unified · California
NCES ID 062223008617 Verify on NCES CCD record →
Teachers (FTE)
18.0
Federal CCD staff survey
Students per teacher
20.5:1
vs 21.5:1 California avg
-5% vs state
Free-lunch eligible
52.9%
vs 55.5% California avg
-5% vs state
Student-teacher ratio in context
How Joe Serna Jr. Charter compares with California and U.S. medians
What stands out at Joe Serna Jr. Charter
Joe Serna Jr. Charter is a higher-need, mid-sized charter elementary school in Acampo, California, enrolling 369 students.
Class sizes run a bit leaner than typical: 20.5:1 puts it in the smaller third of California schools by student-teacher ratio.
Its free-meal eligibility rate of 52.9% lands close to the California typical range, neither a high- nor low-need campus by this measure.
With 369 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Among 1,237 similarly sized, similarly resourced-need California schools statewide, it ranks #71, a top-tier result once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (83% of enrollment) (diversity index 29/100).
Attendance runs somewhat below the norm, with 20.9% of students chronically absent per the 2021-22 civil-rights collection.
Among Acampo's elementary schools, it stands alongside Oak View Elementary (365 students): Joe Serna Jr. Charter is larger than that campus by headcount and runs heavier classes (20.5:1 vs 19.2:1).
Lodi Unified also operates Tokay High (2,058 students) and Lodi High (1,952 students) alongside Joe Serna Jr. Charter.
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 Joe Serna Jr. Charter compares
Joe Serna Jr. Charter on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20.5:1 | ▼ 5% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 52.9% | ▼ 5% | 55.5% | 51.7% |
| Enrollment | 369 | top 65% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20.5:1
Leaner classes than 14% of US schools, heavier class loads than most.
369
Bigger than 43% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
52.9%
free-lunch eligible
- 5% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
20.5:1
students per teacher
- 5% below state mean
Top 39% in California - lower ratio than 61% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
20.9%
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
$15,195
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 7 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.9 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 82.7%
White 14.6%
Asian 1.4%
Two or More 0.8%
American Indian / Alaska Native 0.5%
Largest group: Hispanic or Latino at 82.7% of enrollment.
Student-body diversity index 29.4/100
Simpson diversity index - at 29.4, Joe Serna Jr. Charter is less mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Lodi Unified, which includes Joe Serna Jr. Charter.
$15,195
Per student
-8%
vs California
Avg $16,509
-8%
vs U.S.
Avg $16,593
Revenue mix
Local 21.6%
State 64.1%
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.
How Joe Serna Jr. Charter Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Tokay High | Larger | Similar economic need | Similar S:T ratio |
| Lodi High | Larger | Similar economic need | Lower S:T ratio |
| Bear Creek High | Larger | Similar economic need | Similar S:T ratio |
| Ronald E. Mcnair High | Larger | Higher economic need | Lower S:T ratio |
| Lodi Middle | Larger | Higher economic need | Similar S:T ratio |
Comparisons are relative to Joe Serna Jr. Charter's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,058
- Students per teacher
- 19.8:1
- Resource Index
- 28/100
- Enrollment
- 1,952
- Students per teacher
- 17.9:1
- Resource Index
- 35/100
- Enrollment
- 1,925
- Students per teacher
- 20.1:1
- Resource Index
- 22/100
- Enrollment
- 1,644
- Students per teacher
- 17.7:1
- Resource Index
- 28/100
- Enrollment
- 893
- Students per teacher
- 20.3:1
- Resource Index
- 22/100
Similar elementary schools in Acampo
2 comparable elementary schools (grades K-5) serving the same city.
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 (~369 students)
Similar student-teacher ratio (~20.5:1)
Next steps
Verify locally before acting on Joe Serna Jr. Charter's federal record.
- Compare Joe Serna Jr. Charter against another school. Compare schools
- Lodi 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 Joe Serna Jr. Charter
How many students attend Joe Serna Jr. Charter?
Joe Serna Jr. Charter has 369 students enrolled. It is an elementary school in Acampo, CA.
What is the student-teacher ratio at Joe Serna Jr. Charter?
The student-teacher ratio at Joe Serna Jr. Charter is 20.5:1, which is 5% lower than the California average of 21.5:1 and 31% 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 Joe Serna Jr. Charter?
52.9% of students at Joe Serna Jr. Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Joe Serna Jr. Charter?
The largest demographic group at Joe Serna Jr. Charter is Hispanic or Latino at 82.7% of enrollment, in Acampo, CA.
What is the Resource Investment Index for Joe Serna Jr. Charter?
Joe Serna Jr. Charter has a Resource Investment Index of 45/100 (typical 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).
How does Joe Serna Jr. Charter rank among elementary schools in Acampo?
By Resource Investment Index, Joe Serna Jr. Charter ranks #1 of 3 elementary schools in Acampo, 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 Acampo on the city page.
Is Joe Serna Jr. Charter a good school?
Joe Serna Jr. Charter earns 45/100 on the Resource Investment Index, with class sizes near the California median. 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 Lodi Unified?
Besides Joe Serna Jr. Charter, Lodi Unified also operates Tokay High (2,058 students), Lodi High (1,952 students), and Bear Creek High (1,925 students). See the Lodi 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.