Summary:
High Schools in the Seneca Area School District consist of one school, Seneca High, serving grades 9–12 in Seneca, WI, with an enrollment of 92 students.
For parents, Seneca High has several clear strengths. Its graduation rate was 100.0% in 2024–2025, above Wisconsin’s 92.0%. Tenth-grade social studies proficiency was 75% on the 2025–2026 Forward Exam, well above the state’s 48.25%, and it improved from 63.16% the year before, which was also above state. Chronic absenteeism was 16.9%, slightly better than the state’s 17.3%, though higher than the district’s 12.1%. The school is small, averaging about 23 students per grade, with a 12.7:1 student-teacher ratio, 34.78% free/reduced lunch, and $17,039 per-student spending.
Academic performance is uneven by subject. ACT English Language Arts proficiency was 45%, close to the state’s 48.47%, but ACT Mathematics and Science were each 25%, far below state rates of 42.93% and 43.2%. The dropout rate was 2.1%, above the district’s 1.5% and the state’s 1.1%. The school’s rank also fell from 73rd percentile and 4 stars in 2023–2024 to 40th percentile and 2 stars in 2025–2026; the district is ranked 166th of 432, or 62nd percentile with 3 stars. Because Seneca High is so small, year-to-year percentages and rankings can swing with only a few students, so families should watch these patterns over multiple years.
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