Summary:
Waterloo, Wisconsin is served by three schools — Waterloo Elementary (PK–4), Waterloo Middle (5–8), and Waterloo High (9–12) — all within the Waterloo School District, with 631 students enrolled and no alternative schools. The district overall ranks 348th of 432 Wisconsin districts, in the 19th percentile with 1 star, yet all three individual schools earned 2 stars in their 2025-26 rankings.
Waterloo High has the strongest completion record: a 93.2% graduation rate (above the state's 92.0%) and 0.8% dropout rate (below the state's 1.1%), plus the biggest rank jump, from 15th percentile/1 star to 40th percentile/2 stars — the highest school-level percentile locally. Its 10th-grade social studies proficiency of 48.89% edges the state's 48.25%, and ACT ELA rose from 24% to 45.16%, though ACT math and science remain below state. Waterloo Middle is the most stable, holding 33rd, 32nd, and 31st percentile with 2 stars, and beats the state in 8th-grade ELA (58.33% vs. 54.38%) and science (56.25% vs. 51.86%). Its weakness is math in grades 5–8, sharpest in 7th grade at 32.08% vs. the state's 55.67%. Waterloo Elementary has the best attendance (10.4% chronic absenteeism) and smallest classes (11.4 students per teacher), but all six of its Forward Exam results trail the state, with 3rd-grade math closest at 53.33% vs. 54.75%.
Across the city, chronic absenteeism is a relative bright spot: all three schools sit below the state's 17.3%, though the high school's 15.7% is highest locally and above the district's 11.8%. Math is the most consistent weakness — elementary, middle, and ACT math all trail the state. Spending and class size don't track neatly with outcomes: the middle school spends the most ($16,998) with the highest ratio (14.7), while the high school spends the least ($16,217) and posts the best completion numbers.
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