Summary:
Zip code 66440 has one high school, Royal Valley High, serving grades 9–12 and enrolling 223 students. Its 2025–26 proficiency results were below Kansas averages in every tested subject: 36% in English language arts (ELA) versus 46% statewide, 33% in math versus 41%, and 27% in science versus 38%. The most important finding is that the school trails the state across all three subjects, with its largest gap in science—11 percentage points.
Because there is only one school in the area, families cannot compare local schools at the top and bottom of a list; Royal Valley High is the only school represented. Math is its closest subject to the state result, 8 points behind, while ELA is 10 points behind and science 11 points behind. It also trails the Royal Valley district by 6 points in ELA, 6 in math, and 11 in science. Some other reported outcomes are more favorable: graduation was 91% compared with 90% statewide, and chronic absenteeism was 11% compared with 18% statewide.
Recent results moved in different directions: ELA proficiency at Royal Valley High fell 2 points from 2024–25 to 2025–26, while the state rate rose 1 point, widening the gap by 4 points. Math rose 6 points at the school, compared with a 2-point state increase, narrowing its gap by 4 points. SchoolDigger’s rankings also show a drop in relative standing, from the 83rd percentile and 4 stars in 2023–24 to the 38th percentile and 2 stars in 2025–26. The school’s 9.3 student-teacher ratio and 38% free/reduced-lunch rate provide context, but there are no local peer schools for comparison.
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