Summary:
Mosinee, Wisconsin is home to just one high school, Mosinee High, which serves grades 9–12 with 548 students as part of the Mosinee School District. Because it is the only listed high school in the city, there are no cross-town comparisons to make — instead, families can look at how the school stacks up against its district, the state of Wisconsin, and its own past performance.
Mosinee High's strongest results are in outcomes and ACT proficiency. Its graduation rate is 97.4%, matching the district and well above Wisconsin's 92.0%, and its dropout rate is 0.0% against the state's 1.1%. In 2025–2026, ACT proficiency was above state averages in English Language Arts (64.35% vs. 48.47%), Mathematics (56.52% vs. 42.93%), and Science (56.52% vs. 43.2%) — double-digit leads in each. The school ranked 104th of 533 Wisconsin high schools that year, placing in the 80th percentile with 4 stars, and was even higher in 2023–2024 at the 91st percentile with 5 stars. Its chronic absenteeism rate of 12.4% is better than the state's 17.3%, though above the district's 9.9%. Contextually, the school reports a 12.5 student-teacher ratio, $15,899 per-student spending, and a 17.34% free/reduced lunch rate, though no state or district comparisons are available for the latter two.
The clearest area to watch is 10th-grade Social Studies on the Forward Exam, which fell from 59.29% proficient in 2024–2025 to 47.9% in 2025–2026 — essentially level with the state's 48.25% and no longer the strength it once was. The district scored the same 47.9%, suggesting the shift is not unique to the high school. Overall, Mosinee High remains a strong performer in the top fifth of Wisconsin high schools, with excellent graduation outcomes and ACT results that outpace the state, while Social Studies proficiency and absenteeism relative to the district bear monitoring.
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