Enrollment
216
California · 2024-25 NCES data
Elementary school (grades K-5) · Copperopolis, CA
Copperopolis Elementary
Federal NCES profile for Copperopolis Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 16/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062397009578
👥 S:T ratio 22
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 14
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Copperopolis Elementary earns 16/100 on the Resource Investment Index, with class sizes near the California median.
- 16
- Resource Index · Lower
- 19.6:1
- students per teacher
- 43.6%
- free-lunch eligible
- 216
- students enrolled
Copperopolis Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
School address
District: Mark Twain Union Elementary · California
NCES ID 062397009578 Verify on NCES CCD record →
Teachers (FTE)
11.0
Federal CCD staff survey
Students per teacher
19.6:1
vs 21.5:1 California avg
-9% vs state
Free-lunch eligible
43.6%
vs 55.5% California avg
-21% vs state
Student-teacher ratio in context
How Copperopolis Elementary compares with California and U.S. medians
What stands out at Copperopolis Elementary
Copperopolis Elementary is a mid-sized elementary school in Copperopolis, California, enrolling 216 students.
Class sizes run a bit leaner than typical: 19.6:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 43.6% of students eligible for free meals.
Enrollment of 216 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 464 similarly sized, similarly resourced-need California schools statewide, it ranks #427, in the lower tier once campus size and economic need are matched.
Its student body is led by White (69%) and Hispanic or Latino (26%) (diversity index 46/100).
Counselor access is stretched at roughly 540 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 34.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Mark Twain Union Elementary spends $12,880 per pupil, 22% below the California average, a leaner-resourced district than most.
Discipline events run high: 53 in- and out-of-school suspensions were reported for 216 students in the 2021-22 Civil Rights Data Collection.
Mark Twain Union Elementary also operates Mark Twain Elementary (507 students) and Learners Empowered Academic Progress (Leap) (9 students) alongside Copperopolis 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 Copperopolis Elementary compares
Copperopolis 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 | 19.6:1 | ▼ 9% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 43.6% | ▼ 21% | 55.5% | 51.7% |
| Enrollment | 216 | top 82% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.6:1
Leaner classes than 17% of US schools, heavier class loads than most.
216
Bigger than 21% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
43.6%
free-lunch eligible
- 21% 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
19.6:1
students per teacher
- 9% below state mean
Top 32% in California - lower ratio than 68% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
34.3%
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
$12,880
per pupil, district-wide
- below California avg of $16,509
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.4 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
29
in-school suspensions + 24 out-of-school
Suspension rate: 13.4 per 100 students. Combined in-school and out-of-school rate: 24.5 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
White 69.0%
Hispanic or Latino 25.5%
Two or More 4.2%
African American 0.5%
American Indian / Alaska Native 0.5%
Native Hawaiian / Pacific Islander 0.5%
Largest group: White at 69.0% of enrollment.
Student-body diversity index 45.7/100
Simpson diversity index - at 45.7, Copperopolis Elementary is about as mixed as the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Mark Twain Union Elementary, which includes Copperopolis Elementary.
$12,880
Per student
-22%
vs California
Avg $16,509
-22%
vs U.S.
Avg $16,593
Revenue mix
Local 54.8%
State 34.4%
Federal 10.8%
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 Copperopolis Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mark Twain Elementary | Larger | Higher economic need | Higher S:T ratio |
| Learners Empowered Academic Progress (Leap) | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Copperopolis Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 507
- Students per teacher
- 23:1
- Resource Index
- 23/100
- Enrollment
- 9
- Students per teacher
- 9:1
- Resource Index
- 64/100
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 (~216 students)
Similar student-teacher ratio (~19.6:1)
Next steps
Verify locally before acting on Copperopolis Elementary's federal record.
- Compare Copperopolis Elementary against another school. Compare schools
- Mark Twain 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 Copperopolis Elementary
How many students attend Copperopolis Elementary?
Copperopolis Elementary has 216 students enrolled. It is an elementary school in Copperopolis, CA.
What is the student-teacher ratio at Copperopolis Elementary?
The student-teacher ratio at Copperopolis Elementary is 19.6:1, which is 9% lower than the California average of 21.5:1 and 25% 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 Copperopolis Elementary?
43.6% of students at Copperopolis Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Copperopolis Elementary?
The largest demographic group at Copperopolis Elementary is White at 69.0% of enrollment, in Copperopolis, CA.
What is the Resource Investment Index for Copperopolis Elementary?
Copperopolis Elementary has a Resource Investment Index of 16/100 (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).
Is Copperopolis Elementary a good school?
Copperopolis Elementary earns 16/100 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 Mark Twain Union Elementary?
Besides Copperopolis Elementary, Mark Twain Union Elementary also operates Mark Twain Elementary (507 students) and Learners Empowered Academic Progress (Leap) (9 students). See the Mark Twain Union Elementary 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.