Enrollment
1,033
California · 2024-25 NCES data
Elementary school (grades K-5) · Riverside, CA
Mark Twain Elementary
Federal NCES profile for Mark Twain Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063315011719
👥 S:T ratio 0
🌟 Gifted program 70
📋 Attendance 29
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mark Twain Elementary earns 33/100 on the Resource Investment Index, with class sizes larger than 87% of California schools. It is also more racially and ethnically mixed than most California schools.
- #2 of 43
- elementary schools in Riverside · Resource Index
- 33
- Resource Index · Typical
- 26.5:1
- large classes for California
- 38.3%
- free-lunch eligible
Mark Twain Elementary has class sizes larger than 87% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mark Twain Elementary ranks #2 of 43 elementary schools in Riverside, CA.
School address
District: Riverside Unified · California
NCES ID 063315011719 Verify on NCES CCD record →
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
26.5:1
vs 21.5:1 California avg
+23% vs state
Free-lunch eligible
38.3%
vs 55.5% California avg
-31% vs state
Student-teacher ratio in context
How Mark Twain Elementary compares with California and U.S. medians
What stands out at Mark Twain Elementary
Mark Twain Elementary is a large elementary school in Riverside, California, enrolling 1,033 students.
Class loads run heavy: 26.5:1 is larger than about 87% of California schools and 23% 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 38.3% of students eligible for free meals.
Enrollment of 1,033 puts it in the larger third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 775 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #301.
Its student body is led by Hispanic or Latino (48%) and White (28%), more mixed than most schools in the state (diversity index 67/100).
Chronic absenteeism is elevated: 28.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Riverside's elementary schools, it stands alongside Jefferson Elementary (886 students): Mark Twain Elementary is larger than that campus by headcount and runs heavier classes (26.5:1 vs 22.7:1).
Riverside Unified also operates Martin Luther King Jr. High (2,699 students) and Polytechnic High (2,484 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
How Mark Twain Elementary compares
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 | 26.5:1 | ▲ 23% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 38.3% | ▼ 31% | 55.5% | 51.7% |
| Enrollment | 1,033 | top 11% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
26.5:1
Leaner classes than 4% of US schools, heavier class loads than most.
1,033
Bigger than 92% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
38.3%
free-lunch eligible
- 31% 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
26.5:1
students per teacher
- 23% above state mean
Top 87% in California - lower ratio than 13% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
28.5%
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
$14,545
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
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
1
in-school suspensions + 3 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 0.4 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 47.7%
White 28.0%
Asian 12.6%
African American 6.0%
Two or More 5.1%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 47.7% of enrollment.
Student-body diversity index 67.2/100
Simpson diversity index - at 67.2, Mark Twain Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Riverside Unified, which includes Mark Twain Elementary.
$14,545
Per student
-12%
vs California
Avg $16,509
-12%
vs U.S.
Avg $16,593
Revenue mix
Local 24.1%
State 64.5%
Federal 11.4%
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 Mark Twain Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Martin Luther King Jr. High | Larger | Similar economic need | Lower S:T ratio |
| Polytechnic High | Larger | Higher economic need | Lower S:T ratio |
| Ramona High | Larger | Higher economic need | Lower S:T ratio |
| John W. North High | Larger | Higher economic need | Lower S:T ratio |
| Arlington High | Larger | Higher 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.
Other Schools in This District
- Enrollment
- 2,699
- Students per teacher
- 23.7:1
- Resource Index
- 35/100
- Enrollment
- 2,484
- Students per teacher
- 24.1:1
- Resource Index
- 36/100
- Enrollment
- 2,142
- Students per teacher
- 23:1
- Resource Index
- 38/100
- Enrollment
- 2,011
- Students per teacher
- 22.1:1
- Resource Index
- 40/100
- Enrollment
- 1,920
- Students per teacher
- 24.3:1
- Resource Index
- 34/100
Similar elementary schools in Riverside
6 comparable elementary schools (grades K-5) serving the same city.
Jefferson Elementary
Standard public school
886 students 22.7:1 students per teacher
John F. Kennedy Elementary
Standard public school
864 students 26.2:1 students per teacher
Mountain View Elementary
Standard public school
851 students 23.6:1 students per teacher
Highgrove Elementary
Standard public school
848 students 27.4:1 students per teacher
Washington Elementary
Standard public school
818 students 25.6:1 students per teacher
Benjamin Franklin Elementary
Standard public school
767 students 24:1 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 (~1,033 students)
Next steps
Verify locally before acting on Mark Twain Elementary's federal record.
- Compare Mark Twain Elementary against another school. Compare schools
- Riverside 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 Mark Twain Elementary
How many students attend Mark Twain Elementary?
Mark Twain Elementary has 1,033 students enrolled. It is an elementary school in Riverside, CA.
What is the student-teacher ratio at Mark Twain Elementary?
The student-teacher ratio at Mark Twain Elementary is 26.5:1, which is 23% higher than the California average of 21.5:1 and 69% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mark Twain Elementary?
38.3% of students at Mark Twain Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Mark Twain Elementary?
The largest demographic group at Mark Twain Elementary is Hispanic or Latino at 47.7% of enrollment, in Riverside, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.2/100.
What is the Resource Investment Index for Mark Twain Elementary?
Mark Twain Elementary has a Resource Investment Index of 33/100 (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 Mark Twain Elementary rank among elementary schools in Riverside?
By Resource Investment Index, Mark Twain Elementary ranks #2 of 43 elementary schools in Riverside, 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 Riverside on the city page.
Is Mark Twain Elementary a good school?
Mark Twain Elementary earns 33/100 on the Resource Investment Index, with class sizes larger than 87% of California schools. It is also more 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.
What other schools are in Riverside Unified?
Besides Mark Twain Elementary, Riverside Unified also operates Martin Luther King Jr. High (2,699 students), Polytechnic High (2,484 students), and Ramona High (2,142 students). See the Riverside 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.