Enrollment
454
California · 2024-25 NCES data
Elementary school (grades K-5) · Corcoran, CA
Federal NCES profile for Mark Twain Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 12/100.
The verdict
Mark Twain Elementary earns 12/100 on the Resource Investment Index, with class sizes near the California median. It is also less racially and ethnically mixed than most California schools.
Mark Twain Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mark Twain Elementary ranks #1 of 3 elementary schools in Corcoran, CA.
NCES ID 060969001039 Verify on NCES CCD record →
Enrollment
454
California · 2024-25 NCES data
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
20.6:1
vs 21.5:1 California avg
-4% vs state
Free-lunch eligible
81.7%
vs 55.5% California avg
+47% vs state
How Mark Twain Elementary compares with California and U.S. medians
At or below state median
20.6:1 - 0.9 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Mark Twain Elementary is a high-poverty, mid-sized elementary school in Corcoran, California, enrolling 454 students.
Class sizes run a bit leaner than typical: 20.6:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 81.7% of students eligible for free meals.
With 454 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index trails 95% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,973 similarly sized, similarly resourced-need California schools statewide, it ranks #1,779, in the lower tier once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (93% of enrollment), among the less diverse in the state (diversity index 14/100).
Counselor access is stretched at roughly 1081 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 57.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 15.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Corcoran's elementary schools, it stands alongside Bret Harte Elementary (546 students): Mark Twain Elementary is smaller than that campus by headcount and runs leaner classes (20.6:1 vs 22.8:1).
Corcoran Joint Unified also operates Corcoran High (931 students) and John Muir Middle (754 students) alongside Mark Twain 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
Mark Twain 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 | 20.6:1 | ▼ 4% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 81.7% | ▲ 47% | 55.5% | 51.7% |
| Enrollment | 454 | top 52% | - | - |
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 92.7% of enrollment.
Simpson diversity index - at 13.8, Mark Twain Elementary is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Corcoran Joint Unified, which includes Mark Twain Elementary.
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 |
|---|---|---|---|
| Corcoran High | Larger | Similar economic need | Higher S:T ratio |
| John Muir Middle | Larger | Similar economic need | Similar S:T ratio |
| Bret Harte Elementary | Similar size | Similar economic need | Higher S:T ratio |
| John C. Fremont Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Kings Lake Education Center | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Mark Twain Elementary's own figures; each column derives from NCES Common Core of Data.
2 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Mark Twain Elementary'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.
Mark Twain Elementary has 454 students enrolled. It is an elementary school in Corcoran, CA.
The student-teacher ratio at Mark Twain Elementary is 20.6:1, which is 4% 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.
81.7% of students at Mark Twain Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Mark Twain Elementary is Hispanic or Latino at 92.7% of enrollment, in Corcoran, CA.
Mark Twain Elementary has a Resource Investment Index of 12/100 (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, Mark Twain Elementary ranks #1 of 3 elementary schools in Corcoran, 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 Corcoran on the city page.
Mark Twain Elementary earns 12/100 on the Resource Investment Index, with class sizes near the California median. It is also less racially and ethnically mixed than most 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.
Besides Mark Twain Elementary, Corcoran Joint Unified also operates Corcoran High (931 students), John Muir Middle (754 students), and Bret Harte Elementary (546 students). See the Corcoran Joint Unified 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.
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PlainSchools, “Mark Twain Elementary, Corcoran CA.” 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/mark-twain-elementary-ca
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