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Schools›Missouri›CENTER
SCHOOL COMMUNITY·RALLS CO. R-II·NCES 292571001034

MARK TWAIN JR. HIGH

21622 HWY 19, CENTER, MO 63436 · (573) 267-3397 · Ralls County
GRADES 06–08MIDDLE43-RURALREGULAR SCHOOL194 STUDENTS
Enrollment
194
Middle
DISTRICT 267 · STATE 461
Student : Teacher
15.1:1
13 FTE teachers
DISTRICT 12.7:1 · STATE 13.0:1
Free / Reduced Lunch
30%
58 students
DISTRICT 31% · STATE 54%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
66
Grade 7
63
Grade 8
65
Student demographics
White
18997%
DISTRICT 96% · STATE 67%
Hispanic
21%
DISTRICT 1% · STATE 9%
Black
11%
DISTRICT 2% · STATE 15%
Two+
11%
DISTRICT 1% · STATE 6%
Native American
11%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
11258%
Female
8242%

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Test scores

MO DVT (Growth) 2024-25 . Growth Percentile vs Peers
English Language Arts
53.4%
MO avg 49.5% . +11.1pp since 2023
Math
84.0%
MO avg 48.7% . -1.0pp since 2023
Source: MO DVT (Growth). All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
54.3%
composite math + reading, all grades
Predicted
50.7%
based on MO schools with similar FRL share
Beats by
+3.5pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
194
+6 (+3%) vs 2017
Student : Teacher
15.1:1
was 14.9:1
% White
97%
was 96%
% Hispanic
1%
was 1%
% Black
1%
was 2%
Source: NCES Common Core of Data

About MARK TWAIN JR. HIGH

Set in CENTER, Missouri, MARK TWAIN JR. HIGH is a modestly sized 6-8 campus, overseen by RALLS CO. R-II. It instructs 194 students across grades 6 through 8. By comparison, Missouri's public schools average about 461 students each, so MARK TWAIN JR. HIGH sits 58% below that benchmark.

MARK TWAIN JR. HIGH is one of 3 schools operated by RALLS CO. R-II, a district that works with 800 students overall.

On demographics, MARK TWAIN JR. HIGH records that nearly all students (97%) are White.

On the income-and-resources front, The school employs 13 full-time-equivalent teachers, for a student-teacher ratio near 15.1:1. Statewide, the average ratio sits near 13.0:1, putting MARK TWAIN JR. HIGH higher than the state norm the norm. Around 30% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment.

Adjusting for the school's free-and-reduced-lunch share, MARK TWAIN JR. HIGH performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 50.7%, the actual is 54.3%, a residual of +3.5 points.

In the surrounding community, community-level numbers for Ralls County indicate the typical household earns roughly $65,388 per year, about 17% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 9%. MARK TWAIN JR. HIGH is one of 3 public schools in Ralls County (combined enrollment of about 800 students).

The closest other public school is MARK TWAIN SR. HIGH, roughly 0.0 miles away. Counting just inside five miles, 2 other public schools cluster around MARK TWAIN JR. HIGH. Among the 9 schools in that immediate cluster with test data (this one included), MARK TWAIN JR. HIGH ranks 4th on composite proficiency, above the local average of 47.8%.

MARK TWAIN JR. HIGH operates from an outlying location.

Over the past 7-year window. Looking back 7 years, enrollment at MARK TWAIN JR. HIGH has climbed 3%, going from 188 students in 2018 to 194 in 2025.

Within the allk12 community for this school, recent activity here tends to focus on fundraisers, lost-and-found posts, and report-card season. Anyone with firsthand experience at this school can post or comment.

Ralls County at a glance

View full county profile
Population
10,428
Census ACS
Median income
$65,388
Household, ACS
Bachelor's+
17%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
3
800 students

Quick facts

School name
MARK TWAIN JR. HIGH
District
RALLS CO. R-II
Address
21622 HWY 19, CENTER, MO 63436
Phone
(573) 267-3397
County
Ralls County
Level
Middle
Grade range
06–08
Total enrollment
194
Teachers (FTE)
13
Student–teacher ratio
15.1:1
Free/Reduced lunch
58 (30%)
Locale
43-Rural: Remote
NCES ID
292571001034
Charter school
No
Virtual school
No

Related schools

Other schools in RALLS CO. R-II
Other schools in CENTER
Nearby schools

Frequently asked questions

About MARK TWAIN JR. HIGH
How large is MARK TWAIN JR. HIGH?
MARK TWAIN JR. HIGH enrolls approximately 194 students in grades 06-08.
What age range does MARK TWAIN JR. HIGH serve?
MARK TWAIN JR. HIGH serves students from grade 06 through grade 08.
How many students per teacher at MARK TWAIN JR. HIGH?
Approximately 15.1:1 students per teacher at MARK TWAIN JR. HIGH.
What is the student diversity at MARK TWAIN JR. HIGH?
Student demographics at MARK TWAIN JR. HIGH are roughly 97% White, 1% Hispanic, 1% Black, 1% Two or more.
What district is MARK TWAIN JR. HIGH in?
MARK TWAIN JR. HIGH is part of RALLS CO. R-II.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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