Summary:
ZIP code 66423 has one high school, Mission Valley Junior and Senior High School, serving grades 7–12 and enrolling 216 students. Its 2025–26 results are mixed: math and science proficiency were above Kansas figures, while English language arts (ELA) was below. The clearest concern for families is that 40% of students were chronically absent, compared with 18% statewide and 26% in the Mission Valley district.
With no other listed high school nearby for comparison, the school stands out most in its subject-by-subject results: math proficiency was 47%, 6 percentage points above the state, and science was 44%, also 6 points above; ELA was 38%, 8 points below. Grade-level results show particularly strong comparisons in grade 8 math (56% versus 40% statewide) and grade 10 math (50% versus 37%). ELA was below state results in every grade reported: grades 7, 8, and 10. SchoolDigger ranked the school 86th of 340 statewide, at the 75th percentile with four stars.
Results have shifted notably over the two years reported: ELA fell from 45% in 2024–25 to 38% in 2025–26, while Kansas rose from 44% to 46%. Math improved from 44% to 47%, slightly widening the school’s lead over the state; science fell from 48% to 44% but remained above state results. SchoolDigger’s ranking also declined from the 90th percentile and five stars in 2024–25 to the 75th percentile and four stars in 2025–26. Other context includes a 9.5:1 student–teacher ratio and a 30% free/reduced-lunch rate; graduation rates were about 89% for both the school and state.
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