Summary:
ZIP code 53050 (Mayville, Wisconsin) is served by exactly one high school — Mayville Junior-Senior High, a combined junior-senior high at 500 N Clark St with 486 students in grades 7–12, part of the Mayville School District. Because it is the only school in the district covering those grades, its figures and the district's figures are essentially the same, so families can read them as one.
The school's strongest results are in keeping students enrolled, attending, and graduating. Its graduation rate is 97.0% (state: 92.0%), its dropout rate is 0.6% — roughly half the state's 1.1% — and chronic absenteeism is 9.6% versus 17.3% statewide. Academically, 10th-grade ACT-aligned results improved sharply: ELA proficiency went from 3.84 points below state in 2024–25 to 10.87 points above it in 2025–26 (59.34% vs. 48.47%), while math and science moved to near or above state. Seventh-grade math is a durable strength, beating the state in both years (+7.18 and +7.97 points). That progress shows in the rankings: the school climbed from the 42nd–43rd percentile with 2 stars to the 58th percentile with 3 stars.
The clear pressure point is 8th grade. In 2025–26 the school trailed the state in all four subjects tested at that level — math most of all, at 34.43% proficient versus 53.67% statewide, a gap of 19.24 points. Following the same group of students from 7th to 8th grade, math fell from 62.71% to 34.43% while statewide 8th-grade math barely moved, pointing to a transition or program issue rather than a single weak class. Notably, the school (58th percentile, 3 stars) outranks its own district (37th percentile, 2 stars), and with $14,978 per student, a 14:1 student–teacher ratio and 32.1% free/reduced lunch, resources look adequate on paper.
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