Summary:
ZIP code 54455 has a single middle school — Mosinee Middle, a grades 4–8 school at 700 High St in Mosinee, Wisconsin, serving 685 students as part of Mosinee School District. The district ranks 198th of 432 in Wisconsin (54th percentile, 3 stars), while the school alone ranks 233rd of 643 (64th percentile, 3 stars) for 2025–26 — stronger than its district's overall standing, but down from 164th of 641 (74th percentile, 4 stars) in 2023–24 and 212th of 628 (66th percentile, 3 stars) in 2024–25.
Academically, the picture is uneven, and the split falls along grade levels. Math is the clear strength: grades 6, 7, and 8 reached 68.70%, 68.18%, and 62.50% proficiency, all above state averages, and grade 7 ELA (59.85%), grade 8 social studies (70.83%), and grade 8 science (59.72%) also beat the state. Grades 4–6 trail in ELA, and grade 4 trails in math, science, and social studies. Grade 6 stands out sharply, with math at 68.70% against ELA at 38.17% — a 30.53-point gap within the same grade. On simple grade-level averages, math runs 4.23 points above the state but ELA 6.47 points below it, and every subject slipped from 2024–25 while state averages mostly rose.
School climate is the standout positive: chronic absenteeism is 9.3%, roughly half the state's 17.3%, and the reported dropout rate is 0.0% versus 1.1% statewide. Other context figures include 24.82% free/reduced lunch, $13,114 per-student spending, and a 14:1 student-teacher ratio; without state or peer comparators in this data set, these are descriptors rather than judgments. All test-score values here are exact — none are suppressed, bounded, or given as ranges.
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