Summary:
Marmaton Valley Elementary serves PK–5, Marmaton Valley High serves grades 6–12, and Marmaton Valley Virtual School serves grades 9–12; together, the three schools enroll 276 students. The clearest overall difference is that elementary results are above state figures in all three tested subjects, while high-school results are below state figures in all three.
In 2025–26, Marmaton Valley Elementary had the highest reported all-grade results: 47% in ELA, 62% in math, and 64% in science. Those results were 1, 21, and 26 percentage points above the state, respectively. Marmaton Valley High had the lowest reported results, at 37% in ELA, 31% in math, and 32% in science—8, 10, and 6 points below the state. The school-to-school gaps were 10 points in ELA, 31 in math, and 32 in science. The all-grade comparisons summarize different grade spans, and the virtual school has no supplied test scores. High school graduation is a separate bright spot: its rate was 100% in 2023–24, compared with 90% statewide and 85% in the Marmaton Valley district.
Recent scores moved in different ways: Marmaton Valley High improved from 2024–25 to 2025–26 by 6 points in ELA, 9 in math, and 3 in science, while Marmaton Valley Elementary rose 1 point in math and 2 in science but fell 4 in ELA. SchoolDigger’s high-school percentile ranking dropped from 62nd in 2024–25 to 20th in 2025–26 despite those score gains; the elementary ranking was 66th in 2025–26. The elementary school’s student–teacher ratio was 10.7, compared with 8.6 at High; its free/reduced-lunch rate was also higher, 67% versus 62%. These are context, not explanations for the score differences.
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