MARK TWAIN ES
Score 10.6/100: better than 10% of Oklahoma elementary schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2025-26)
% Proficient or Advanced on state tests in Oklahoma, all students. Colored bars are green when the school is at or above the average for similar Oklahoma schools.
Results over time
How this school's published results have moved year by year. † marks a year when the state changed its test, so that change isn't comparable.
All 9 published results by grade and test
As published by Oklahoma State Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 3 | OSTP ELA | hidden (small group) | 24 |
| English language arts | Grade 4 | OSTP ELA | hidden (small group) | 18 |
| English language arts | Grade 5 | OSTP ELA | 11 | 28 |
| Math | Grade 3 | OSTP Mathematics | 25 | 24 |
| Math | Grade 4 | OSTP Mathematics | 11 | 18 |
| Math | Grade 5 | OSTP Mathematics | 7 | 28 |
| Science | Grade 3 | OSTP Science | hidden (small group) | — |
| Science | Grade 4 | OSTP Science | hidden (small group) | — |
| Science | Grade 5 | OSTP Science | 15 | 28 |
School profile
- Grades
- K-5
- Students
- 152
- Type
- Elementary school
- Charter school
- No
- Program
- Regular
Students
Contact
Duncan, OK 73533
"Typical" is the middle (median) elementary school in Oklahoma. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).
Nearby elementary schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Duncan
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
Oklahoma publishes the percentage of students at each performance level; we add up the levels it counts as proficient.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
MARK TWAIN ES at a glance
MARK TWAIN ES is a public elementary school in Duncan, Oklahoma, serving grades K-5. It is part of the Duncan school district. It has about 152 students (a typical Oklahoma elementary school has 396). About 97% of students are eligible for free or reduced-price lunch, compared with 69% at a typical Oklahoma elementary school, which is useful context when reading test results.
In 2025-26 state tests, 11% in English language arts (similar schools: 25%) and 14% in math (similar schools: 32%) reached the state standard (% Proficient or Advanced). On our score, which compares it only with other Oklahoma elementary schools, it scores 10.6 out of 100: better than 10% of them, ranking #530 of 592. Its English language arts result was broadly unchanged from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.