Enrollment
221
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Charleston, IL
Mark Twain Elem School
Federal NCES profile for Mark Twain Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataOther / mixed grade configurationNCES 170960000572
👥 S:T ratio 41
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mark Twain Elem School earns 24/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #4 of 5
- public schools in Charleston · Resource Index
- 24
- Resource Index · Lower
- 14.7:1
- students per teacher
- 221
- students enrolled
Mark Twain Elem School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Mark Twain Elem School ranks #4 of 5 public schools in Charleston, IL.
School address
District: Charleston Cusd 1 · Illinois
NCES ID 170960000572 Verify on NCES CCD record →
Teachers (FTE)
15.0
Federal CCD staff survey
Students per teacher
14.7:1
vs 14:1 Illinois avg
+5% vs state
Student-teacher ratio in context
How Mark Twain Elem School compares with Illinois and U.S. medians
What stands out at Mark Twain Elem School
Mark Twain Elem School is a mid-sized combined-grade school in Charleston, Illinois, enrolling 221 students.
Class loads run somewhat heavier than typical: 14.7:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 221 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is led by White (72%) and African American (10%) (diversity index 45/100).
Chronic absenteeism is elevated: 46.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Charleston Cusd 1 spends $12,259 per pupil, 28% below the Illinois average, a leaner-resourced district than most.
Charleston Cusd 1 also operates Charleston High School (795 students) and Jefferson Elem School (698 students) alongside Mark Twain Elem School.
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 Elem School compares
Mark Twain Elem School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.7:1 | ▲ 5% | 14:1 | 15.7:1 |
| Enrollment | 221 | top 79% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.7:1
Leaner classes than 50% of US schools, a middle-of-the-pack class size.
221
Bigger than 22% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
14.7:1
students per teacher
- 5% above state mean
Top 66% in Illinois - lower ratio than 34% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
46.6%
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
$12,259
per pupil, district-wide
- below Illinois avg of $17,042
Well below the U.S. average per-pupil spend, a notably leaner funding position that 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 + 3 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.4 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
White 72.4%
African American 10.4%
Hispanic or Latino 9.0%
Two or More 6.8%
Asian 0.9%
American Indian / Alaska Native 0.5%
Largest group: White at 72.4% of enrollment.
Student-body diversity index 45.2/100
Simpson diversity index - at 45.2, Mark Twain Elem School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Charleston Cusd 1, which includes Mark Twain Elem School.
$12,259
Per student
-28%
vs Illinois
Avg $17,042
-26%
vs U.S.
Avg $16,593
Revenue mix
Local 46.9%
State 39.1%
Federal 14.0%
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 Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Charleston High School | Larger | No free-lunch data | Higher S:T ratio |
| Jefferson Elem School | Larger | No free-lunch data | Higher S:T ratio |
| Carl Sandburg Elem School | Larger | No free-lunch data | Similar S:T ratio |
| Charleston Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Ashmore Elem School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Mark Twain Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 795
- Students per teacher
- 16.6:1
- Resource Index
- 21/100
- Enrollment
- 698
- Students per teacher
- 19.9:1
- Resource Index
- 36/100
- Enrollment
- 555
- Students per teacher
- 14.2:1
- Resource Index
- 28/100
- Enrollment
- 401
- Students per teacher
- 14.3:1
- Resource Index
- 38/100
- Enrollment
- 74
- Students per teacher
- 10.6:1
- Resource Index
- 65/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~221 students)
Similar student-teacher ratio (~14.7:1)
Next steps
Verify locally before acting on Mark Twain Elem School's federal record.
- Compare Mark Twain Elem School against another school. Compare schools
- Charleston Cusd 1'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 Elem School
How many students attend Mark Twain Elem School?
Mark Twain Elem School has 221 students enrolled. It is a public school in Charleston, IL.
What is the student-teacher ratio at Mark Twain Elem School?
The student-teacher ratio at Mark Twain Elem School is 14.7:1, which is 5% higher than the Illinois average of 14:1 and 6% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Mark Twain Elem School?
The largest demographic group at Mark Twain Elem School is White at 72.4% of enrollment, in Charleston, IL.
What is the Resource Investment Index for Mark Twain Elem School?
Mark Twain Elem School has a Resource Investment Index of 24/100 (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).
How does Mark Twain Elem School rank among public schools in Charleston?
By Resource Investment Index, Mark Twain Elem School ranks #4 of 5 public schools in Charleston, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Charleston on the city page.
Is Mark Twain Elem School a good school?
Mark Twain Elem School earns 24/100 on the Resource Investment Index, with class sizes near the Illinois 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 Charleston Cusd 1?
Besides Mark Twain Elem School, Charleston Cusd 1 also operates Charleston High School (795 students), Jefferson Elem School (698 students), and Carl Sandburg Elem School (555 students). See the Charleston Cusd 1 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.