Enrollment
251
Missouri · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 292571001510
Mark Twain Sr. High — Center, MO
Federal NCES profile for Mark Twain Sr. High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 45/100.
👥 Class size 43
📚 AP courses 10
🌟 Gifted program 70
🎓 Counselors 50
📋 Attendance 54
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
The verdict
Mark Twain Sr. High earns a D Resource Investment Index (45/100), with class sizes larger than 72% of Missouri schools.
- D
- Resource Index · 45/100
- 14.3:1
- large classes for Missouri
- 27.6%
- free-lunch eligible
- 251
- students enrolled
School address
District: Ralls Co. R-Ii · Missouri
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
18.0
Federal CCD staff survey
Students per teacher
14.3:1
vs 12.9:1 Missouri avg
+11% vs state
Free-lunch eligible
27.6%
vs 46.1% Missouri avg
-40% vs state
Student-teacher ratio in context
How Mark Twain Sr. High compares with Missouri and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Mark Twain Sr. High reports 251 enrolled students to the National Center for Education Statistics (NCES) alongside 18.0 full-time-equivalent teachers, producing a 14.3:1 student-teacher ratio. That figure sits 11% above the Missouri state mean of 12.9:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.7:1, it is 9% lower, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 27.6% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 40% below the Missouri average and 47% below the national baseline. Counselor coverage works out to roughly 251 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 18.3% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Ralls Co. R-Ii spends $10,317 per pupil district-wide, below the Missouri average of $12,931 and below the national average of $16,593. Revenue comes 55.0% from local sources (property taxes), 26.7% from the state, and 18.3% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 45/100 (D), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Mark Twain Sr. High compares
Cross-validating school-level NCES values against Missouri state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.3:1 | ▲ 11% | 12.9:1 | 15.7:1 |
| Free-lunch eligible | 27.6% | ▼ 40% | 46.1% | 51.8% |
| Enrollment | 251 | top 39% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Class size vs. every US school
Students per teacher (lower means more individual attention)
14 smaller classes than 56% of 92,598 US schools
Each bar is a band; taller bars hold more US schools. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Department of Education — NCES Common Core of Data · 2024-25
School size vs. every US school
Total enrollment — where this school sits by size (neither large nor small is 'better')
251 larger than 25% of 95,891 US schools
Each bar is a band; taller bars hold more US schools. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Department of Education — NCES Common Core of Data · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
27.6%
free-lunch eligible
— 40% below the Missouri average of 46.1%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
14.3:1
students per teacher
— 11% above state mean
Top 72% in Missouri — lower ratio than 28% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
18.3%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$10,317
per pupil, district-wide
— below Missouri avg of $12,931
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 251 students — the combined health-and-guidance staffing load for this school.
Discipline context
26
in-school suspensions + 9 out-of-school
Suspension rate: 10.4 per 100 students. Combined in-school and out-of-school rate: 13.9 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 251 Top 39% in Missouri — larger than 61% of 2,321 state schools
Teachers (FTE) 18.0
Students per teacher 14.3:1 +11% vs state
Free-lunch eligible 27.6% -40% vs state
NCES ID 292571001510
Student demographics
White 94.0%
African American 2.0%
Hispanic or Latino 2.0%
Two or More 1.6%
Asian 0.4%
Largest group: White at 94.0% of enrollment.
Programs & staff
AP program Not offered
Gifted & talented Yes
Counselors (FTE) 1.0
Students per counselor 251:1
Discipline & special education
Chronically absent 18.3%
In-school suspensions 26
Out-of-school suspensions 9
Funding & spending
District-wide per-pupil expenditure for Ralls Co. R-Ii, which includes Mark Twain Sr. High.
$10,317
Per student
-20%
vs Missouri
Avg $12,931
-38%
vs U.S.
Avg $16,593
Revenue mix
Local 55.0%
State 26.7%
Federal 18.3%
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.
Other Schools in This District
- Enrollment
- 355
- Students per teacher
- 12.5:1
- Enrollment
- 194
- Students per teacher
- 16.8:1
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Mark Twain Sr. High
How many students attend Mark Twain Sr. High?
Mark Twain Sr. High has 251 students enrolled. It is a high school in CENTER, MO.
What is the student-teacher ratio at Mark Twain Sr. High?
The student-teacher ratio at Mark Twain Sr. High is 14.3:1, which is 11% higher than the Missouri average of 12.9:1 and 9% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Mark Twain Sr. High?
27.6% of students at Mark Twain Sr. High are eligible for free lunch, compared to the Missouri average of 46.1%.
What is the racial and ethnic makeup of Mark Twain Sr. High?
The largest demographic group at Mark Twain Sr. High is White at 94.0%. The school serves a diverse student body in CENTER, MO.
What is the Resource Investment Index for Mark Twain Sr. High?
Mark Twain Sr. High has a Resource Investment Index of 45/100 (D) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.
Is Mark Twain Sr. High a good school?
Mark Twain Sr. High earns a D Resource Investment Index (45/100), with class sizes larger than 72% of Missouri schools. The Resource Investment Index reflects staffing, counselor access, gifted programs, and attendance reported to NCES, not test scores or academic outcomes, so treat it as a resource snapshot rather than an overall rating.