Summary:
ZIP code 66508 has two Marysville schools: Marysville Elementary, serving prekindergarten through grade 6, and Marysville Junior/Senior High, serving grades 7–12; they enroll 417 and 364 students, respectively. In 2025–2026, the schools’ average proficiency was 43% in English, 36% in math, and 33% in science, compared with state results of 46%, 41%, and 38%. The clearest overall finding is that Marysville Elementary is the only school above the state in an all-grades subject: its 42% math result was 1 percentage point above the state.
Marysville Elementary leads the reported results in all three subjects, with a 5-point advantage over the high school in English, 12 points in math, and 10 points in science. It is close to the state in English and science, while Marysville Junior/Senior High is below the state by 5 points in English, 11 in math, and 10 in science. Grade-level results add important detail: Elementary’s third-grade English result was 12 points above the state, while its fifth-grade math result was 14 points below. The high school’s graduation rate was 97%, compared with 90% statewide. Both schools have two stars in SchoolDigger’s current rankings: Elementary is at the 42nd percentile and the high school at the 44th.
Recent results are mixed, with the high school’s math and science declines standing out: math fell 12 percentage points and science 9 points from the prior year, while English was nearly flat. Elementary improved 4 points in English and 7 in math, but fell 4 in science. Across the two schools, English improved 2 points, while math fell 3 and science fell 6; math and science moved further behind the state. SchoolDigger’s high-school ranking also fell from the 77th to the 44th percentile; Elementary rose from the 36th to the 42nd. As context, Elementary’s student-teacher ratio was 12.6 compared with 11.4 at the high school, and free/reduced-price lunch rates were 58% and 45%, respectively.
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