Summary
Colby High is a 9–12 high school in Colby, Wisconsin, serving 306 students as part of the Colby School District, which ranks 413th of 432 Wisconsin districts (4th percentile, 0 stars). The school has ranked near the bottom of Wisconsin high schools recently: 458th of 533 (14th percentile, 1 star) in 2025–26, 375th of 431 in 2024–25, and 407th of 431 in 2023–24. In 2025–26, proficiency was low across all subjects: English Language Arts 26.39%, Mathematics 8.33%, Science 29.17%, and Social Studies 30.56% — each below state averages of 48.47%, 42.93%, 43.2%, and 48.25%.
Math is the most severe weakness. Colby's 8.33% math proficiency is the lowest among nearby high schools, below Owen-Withee High (20.51%), Abbotsford Middle/Senior High (22.45%), and Loyal High (25.64%). ELA is also near the bottom, above only Owen-Withee. High-performing neighbors such as Stratford High, Edgar High, and Marshfield High are generally 40–60% proficient. Completion outcomes, however, are strong: a 100.0% graduation rate and 0.0% dropout rate in 2024–25, tying the highest locally. Chronic absenteeism improved from 48.9% in 2020–21 to 15.1% in 2024–25, below the state average of 17.3% but above the district's 8.9%.
About 51.63% of students were economically disadvantaged, higher than most nearby districts, and per-student spending was $16,148 with the highest local student-teacher ratio of 16.3. Subgroup results show English Language Learner students as a relative bright spot (68th percentile, 3 stars), while low-income students (8th percentile, 0 stars) and special education students (2nd percentile, 0 stars) are the biggest equity concerns. Overall, Colby High graduates nearly all of its students, but proficiency — especially in math — trails well behind state and local averages.
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