Summary:
ZIP code 54110 covers Brillion, Wisconsin, and contains exactly one high school — Brillion High, part of the Brillion School District — which serves grades 9–12 with 327 students at W1101 County Road HR. Because it is the only high school in the ZIP, the most useful comparisons are between Brillion High and Wisconsin state averages, along with how its results have changed from year to year.
Academically, the strongest signal is math. In 2025–2026, 61.9% of 10th graders were proficient in ACT mathematics, compared with 42.93% statewide, and that figure rose 9.2 points from the prior year. English Language Arts also improved, from 52.7% to 58.73% (state: 48.47%), and science rose from 45.95% to 49.21% (state: 43.2%). The clear soft spot is 10th-grade Social Studies on the Forward Exam, where proficiency was 42.7%, below the state's 48.25% and down 5.06 points from 47.76% the year before — a decline that runs against a slightly rising state average.
School climate and completion measures are strong: the graduation rate is 94.3% (state: 92.0%), the dropout rate is 0.9% (state: 1.1%), and chronic absenteeism is 8.7%, less than half the state's 17.3% — though higher than the district's 6.1%. Class sizes are modest at a 12.2 student-teacher ratio, per-student spending is $15,097, and 19.27% of students qualify for free or reduced lunch. The district holds 4 stars and ranks 76 of 432 (82nd percentile), while Brillion High holds 3 stars and ranks 172 of 533 (68th percentile) — the same raw rank as the prior year, but a higher percentile because the comparison pool grew from 431 schools.
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