Summary:
Mosinee Middle is the only middle school in the Mosinee School District in Wisconsin, serving grades 4–8 to 685 students at 700 High St in Mosinee, so it defines the district's middle-grade performance rather than competing with other local middle schools.
Its clearest strength is mathematics. In 2025–2026, the school's average math proficiency across grades 4–8 was 57.75%, about 4 points above the state's 53.52%, and in 2024–2025 it was 63.01% versus the state's 53.62%. Grades 6, 7, and 8 were above state in math both years, with 7th grade reaching 78.87% in 2024–2025 — 23.34 points above state for that grade. Eighth grade science and social studies also beat state in both years, 7th grade ELA was above state both years, and attendance is strong: chronic absenteeism was 9.3% versus the state's 17.3%, with a 0.0% dropout rate. The school ranked 233 of 643 schools in 2025–2026, the 64th percentile, above the district's 54th percentile.
There are real concerns. Fourth grade was below state in every subject in both years, and in 2025–2026 4th grade math was 14.25 points below state while 4th grade ELA and science were both 42.07%, more than 11 points below. Sixth grade is sharply split: math was 15.10 points above state, but ELA was 38.17%, 16.78 points below state and down from 44.70%. Overall ELA slipped from 52.13% (near the state's 52.94%) to 47.96% against a state rate of 54.43%, and math and ELA averages both declined year over year. Rank has drifted from 164 of 641 and 4 stars in 2023–2024 to 233 of 643 and 3 stars in 2025–2026. Note that grade-level comparisons are cohort-level, not individual student growth.
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