Summary:
Zip code 67701 has one listed high school, Colby Senior High, serving grades 9–12 and enrolling 296 students. Because it is the only school listed, there is no other local high school to compare it with. The most important finding is that its 2025–2026 all-grade proficiency was below Kansas in all three reported subjects, with the largest gaps in math and science.
Colby Senior High’s strongest all-grade result relative to Kansas was ELA: 43% proficient, 3 percentage points below the state’s 46%. Math was 31%, 10 points below the state’s 41%, and science was 28%, 10 points below the state’s 38%. Comparisons with Colby Public Schools show a different bright spot: the school was 9 points above the district in ELA, but 4 points below in both math and science. Its graduation rate was 90%, about 1 point above the state; its chronic absenteeism was 20%, 2 points above the state, and its dropout rate was 2%, about 1 point higher.
Recent test results moved in different directions by subject, with ELA showing the sharpest change. From 2024–2025 to 2025–2026, the school’s ELA proficiency fell 8 points, from 51% to 43%, while Kansas rose 1 point; the school shifted from 6 points above the state to 3 points below. Math fell 1 point, from 32% to 31%, while Kansas rose 2 points, widening the school’s gap from 7 to 10 points. SchoolDigger’s ranking rose from 212th of 318 schools (33rd percentile, 2 stars) to 107th of 332 (68th percentile, 3 stars), then moved back to 183rd of 340 (46th percentile, 2 stars). The student-teacher ratio was 13.6 to 1, and 30% of students qualified for free or reduced-price lunch; these figures provide context, not an explanation for results.
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