Mark Twain Senior High School
Public high school in Center, Missouri · Ralls County R-II School District · Grades 9–12
Mark Twain Senior High School serves 251 students in grades 9–12 in Center (Ralls County). It is one of 3 schools in Ralls County R-II School District. By enrollment it is the 290th largest of 558 public high schools in Missouri (median 268 students). With 12 students per full-time teacher, it has about the same as the typical Missouri high school (12.2).
Source: NCES CCD 2024-25. Rank and medians compare all 558 Missouri high schools with enrollment listed on this site.
Source: NCES CCD 2024-25. Students per teacher = students ÷ 20.99 full-time-equivalent teachers.
School facts
| School type | Regular School |
| Level | High |
| Grades | 9–12 |
| District | Ralls County R-II School District |
| County | Ralls County |
| Area type | Rural, remote |
| School meals | National School Lunch Program, free or reduced price for eligible students |
| NCES school ID | 292571001510 |
Source: NCES CCD 2024-25 directory and school characteristics; area type from NCES EDGE locale codes.
Compared with the district and Missouri
| This school | Ralls County R-II | Missouri high schools (median) | |
|---|---|---|---|
| Students | 251 | 800 | 268 |
| Students per teacher | 12 | 12.2 | 12.2 |
| Free or reduced-price lunch eligible | 28.7% | 31% | 46.2% |
Source: NCES CCD 2024-25. District figures add up its schools. 47% of Missouri high schools have fewer students per teacher than this school (share of schools with a lower ratio). State test results aren't published here yet.
Mark Twain Senior High School in context
Size
Mark Twain Senior High School is the only high school in Ralls County R-II School District. Its 251 students are 31.4% of the district's 800. Its 8 closest high schools sit a median 19.6 miles away with a median enrollment of 260; Mark Twain Senior High School is close to their typical size.
Source: NCES CCD 2024-25 enrollment and school type. Share of district students = this school's students ÷ the district's students. Nearest schools by straight-line distance between NCES EDGE locations.
Grades
Its largest grade is grade 9 with 67 students, and its smallest is grade 12 with 51, against an average of 63 per grade. This year grade 12 has 24% fewer students than grade 9 (51 against 67). Each grade is a different group of students, so the gap is not a dropout or growth rate.
Source: NCES CCD 2024-25 membership by grade.
Students
The largest group is White students: 94% here and 95.6% across Ralls County R-II. Students from 5 of the 7 race and ethnicity groups NCES reports are enrolled.
28.7% of its students are eligible for free or reduced-price lunch, against 31% across Ralls County R-II and a median of 46.2% for Missouri high schools. 12.4% are directly certified for free meals, meaning their families take part in programs such as SNAP or TANF, so no application was needed. Families apply for free or reduced-price meals, and eligibility depends on household income.
Source: NCES CCD 2024-25 membership and school lunch program data. District shares weight each school by its enrollment.
Teachers
With 20.99 full-time-equivalent teachers for 251 students, Mark Twain Senior High School has 12 students per teacher. At the median Missouri high school ratio of 12.2, a school with 251 students would have about 20.6 teachers, so Mark Twain Senior High School has about as many as that.
Source: NCES CCD 2024-25. Expected teachers = this school's students ÷ the median students per teacher of Missouri high schools (12.2).
Location
Mark Twain Senior High School is in rural territory more than 25 miles from an urbanized area and more than 10 miles from a town, which NCES calls rural, remote. The nearest other high school is Van-Far Junior/Senior High School, 14.9 miles away in Van-Far R-I School District. No other high school is within 10 miles.
Source: NCES EDGE school locations and locale codes, 2024-25. Distances are straight lines.
Students by race and ethnicity
| White | 94% |
| Black | 2% |
| Hispanic | 2% |
| Two or more races | 1.6% |
| Asian | 0.4% |
49% of students are girls and 51% are boys.
Source: NCES CCD 2024-25 membership.
Students by grade
| Grade 9 | 67 |
| Grade 10 | 67 |
| Grade 11 | 66 |
| Grade 12 | 51 |
Source: NCES CCD 2024-25 membership.
Location and contact
21622 Hwy 19, Center, MO 63436
Phone: (573)267-3397
Website: rallsr2.k12.mo.us
Locations: NCES EDGE. Map data © OpenStreetMap contributors.
Red: Mark Twain Senior High School. Blue: the nearest high schools.
Nearby high schools
| School | District | Distance | Students | Per teacher | Free/reduced lunch |
|---|---|---|---|---|---|
| Van-Far Junior/Senior High School | Van-Far R-I | 14.9 mi | 248 | 10.9 | 47.6% |
| Monroe City R-I High School | Monroe City R-I | 15.1 mi | 271 | 13 | 34.7% |
| Hannibal Senior High School | Hannibal 60 | 15.6 mi | 1,048 | 15.7 | 49.7% |
| Palmyra High School | Palmyra R-I | 18.6 mi | 331 | 11.8 | 36.6% |
| Bowling Green High School | Bowling Green R-I | 20.7 mi | 373 | 12.8 | 36.2% |
| Louisiana High School | Louisiana R-II | 24.1 mi | 187 | 11.9 | 61% |
| Community High School | Community R-VI | 25.3 mi | 154 | 8.6 | 33.1% |
| Marion County High School | Marion County R-II | 25.7 mi | 98 | 8.9 | 42.9% |
Source: NCES CCD 2024-25. Distance in a straight line between NCES EDGE locations.
Other schools in Ralls County R-II
| School | Level | Grades | Students |
|---|---|---|---|
| Mark Twain Junior High School | Middle | 6–8 | 194 |
| Ralls County Elementary School | Elementary | Pre-K–5 | 355 |