Summary
South High is a public high school serving grades 9–12 at 401 E Roberta Ave in Waukesha, Wisconsin, part of the Waukesha School District, with about 833 students. The district ranks 184th of 432 in Wisconsin (57th percentile, 3 stars), but South High's own 2025–26 rank is 413th of 533 (23rd percentile, 1 star), well below its district's overall standing.
Academics are the main concern. In 2025–26, 10th-grade proficiency at South High was 30.94% in social studies, 33.67% in English language arts, 31.63% in math, and 30.61% in science — roughly 11 to 17 points below both district and state averages. Nearby comprehensive peers score much higher: North High (41–54%), West High (55–60%), Pewaukee High (65–79%), and New Berlin West Middle/High (65–75%). Chronic absenteeism is South's most striking red flag at 30.8% in 2024–25, more than double the district's 14.9% and above the state's 17.3% — and higher than North (23.7%), West (16.2%), Pewaukee (11.3%), and New Berlin West (4.1%).
Completion is improving: South's 2024–25 graduation rate was 92.6%, matching the district and above the state (92.0%), and the dropout rate fell to 0.9%. South spends $21,344 per student with a student–teacher ratio of 11.6 — far more resources than North ($14,648), West ($14,320), or Pewaukee ($15,450) — yet proficiency still lags. About 55.22% of students qualified for free/reduced-price lunch in 2024–25, the highest among nearby comprehensive high schools. Subgroup results vary widely: special education students rank near or above the state median, while low-income students, English language learners, and male students rank far below. Small specialized programs in the building, such as Waukesha Engineering Preparatory Academy and Waukesha Academy of Health Professions, post strong results but serve a much smaller, separate population.
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