Summary:
Zip code 66423 has two Mission Valley Elementary and Mission Valley Junior and Senior High School, serving prekindergarten through grade 6 and grades 7–12, with 452 students combined. The clearest academic difference is in math and science: in 2025–2026, the junior and senior high scored 47% in math and 44% in science, compared with 29% and 24% at the elementary school. The high school was above state results in those subjects, while elementary results were below the state in all three subjects; both schools were below the state in English language arts (ELA). Overall, the most important takeaway is that math and science results vary sharply by school, while ELA is a shared area of weakness.
The junior and senior high stands out in the latest math and science results and in SchoolDigger’s statewide ranking: it ranked at the 75th percentile and received 4 stars, compared with the elementary school’s 20th percentile and 1 star. Its math and science results led elementary by 18 and 20 percentage points, respectively, and were 6 and 6 points above the state. ELA results were much closer: elementary led by 1 point, but both schools were below the state. The elementary school’s clearest relative strength is attendance: chronic absenteeism was 13%, versus 40% at the junior and senior high and 18% statewide.
Results changed in different ways from 2024–2025 to 2025–2026: elementary ELA rose 3 points, while its math fell 5 and science fell 13; the junior and senior high’s math rose 3 points, while its ELA fell 8 and science fell 5. Across the two schools, the average moved from above the state in math and science to below it in all three subjects. Other differences may help parents compare the schools: the elementary school had 13.1 students per teacher versus 9.5 at the junior and senior high, and free/reduced-lunch rates were 39% versus 30%, respectively. These are observations, not explanations for the results; the schools serve different grades, so their overall test scores are not a grade-for-grade comparison.
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