11 public K-12 schools in Duncan from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
National city placement
According to NCES CCD 2024-25, Duncan has more public-school enrollment than 41% of the 4,487 US cities in this directory. Duncan sits in the broad middle of the national city distribution rather than at a single obvious extreme. Its scale, average Resource Investment Index, and staffing position need to be read together: a middle placement on one measure does not cancel a stronger or weaker result on another. The percentile panel makes those dimensions explicit, and the school table shows where the city aggregate breaks into materially different campus profiles.
Duncan's list includes 5 elementary, 2 middle, and 2 high-school campuses, plus 2 combined-grade records. The city average spans every major grade stage, so the ranked table is more informative when read within level than as one interchangeable queue.
Duncan's average Resource Investment Index sits at the 91st percentile, while its teacher-staffing measure sits at the 37th percentile. The 54-point percentile gap is a reminder that the index is not a class-size score: counselors, gifted-program reporting, and attendance also affect it. Compare those components directly when two schools have similar index totals; the same headline score can arise from a different mix of reported resources.
That concentration means Duncan-wide averages can mask substantial variation outside the largest entity. Grade level: High. The share measures enrollment concentration only; it does not establish how districts allocate programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.
Source: NCES Common Core of Data
Duncan school enrollment ranges from 112 students (lowest) to 981 students (highest), a spread of 869 students. That relatively narrow ratio reflects an unusually homogeneous school portfolio for a city this size. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.
Source: NCES Common Core of Data
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Variation between sub-units within Duncan is typically wider than the Duncan-aggregate figure suggests.
| # | School | Score |
|---|---|---|
| 1. | Mark Twain Es | 71 |
| 2. | Duncan Ms | 58 |
| 3. | Horace Mann Es | 57 |
| 4. | Empire Hs | 57 |
| 5. | Empire Ms | 56 |
| 6. | Emerson Es | 53 |
| 7. | Duncan Hs | 51 |
| 8. | Woodrow Wilson Es | 50 |
| 9. | Plato Es | 48 |
| 10. | Empire Es | 43 |
| 11. | Will Rogers Pre-K Ctr | 28 |
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
Mark Twain Es has the highest Resource Investment Index among the Duncan schools in this federal-data comparison at 71/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.
Duncan has 11 public schools with a total enrollment of 3,784 students. Average student-teacher ratio: 16.6:1.
Side-by-side: Compare any two schools or districts in Oklahoma →
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio, counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes: verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.
