Summary:
Williams Bay School District serves about 597 students at three schools — an elementary (PK–5), a middle (6–8), and a high school (9–12) — and ranks 162 of 432 Wisconsin districts, at the 62nd percentile with 3 stars.
That district rating hides a sharp split. Williams Bay Elementary has been a 4-star school all three recent years, reaching the 77th percentile in 2025–26 with proficiency above state in ELA (64.1% vs 53.2%), math (72.9% vs 53.1%), and social studies (82.5% vs 65.5%). Williams Bay High improved from 2 stars and the 35th percentile in 2023–24 to 4 stars and the 74th percentile in 2025–26, posting a 100% graduation rate (state: 92%) and a 0.5% dropout rate (state: 1.1%), with strong ACT ELA (67.5% vs 48.5%) and social studies (68.6% vs 48.3%) but near-state math (42.5% vs 42.9%) and science (40% vs 43.2%). Williams Bay Middle is 2 stars, near the 40th percentile.
The middle school still has the district's lowest chronic absenteeism (8.5% vs 17.3% statewide) and bright spots in 6th-grade ELA (70.59% vs 54.95%) and math (64.71% vs 53.6%), but 8th-grade math (26.67% vs 53.67%), science (37.78% vs 51.86%), and social studies (46.67% vs 64.63%) lag. Absenteeism is below the state's 17.3% at all three schools, though the elementary is highest in the district at 13.2%. Per-student spending is highest at the high school ($20,097) and lowest at the elementary ($17,291). With only 145–282 students per school, grade-level percentages can swing sharply, so single-year changes deserve caution.
Thank you for your feedback!