Summary:
ZIP code 55992 in Zumbrota, Minnesota contains exactly one high school — Zumbrota-Mazeppa Senior High, located at 705 Mill St, serving grades 9–12 with 401 students as part of the Zumbrota-Mazeppa School District. Since there is only one school here, the meaningful comparison is against the district and the state of Minnesota, not against a local peer school.
On completion, this school is a standout. Its 97.6% graduation rate is 12.7 percentage points above Minnesota's 84.9%, and its 1.1% dropout rate is roughly one-quarter of the state's 4.2%. Science proficiency of 43.4% is 17.9 points above the state's 25.5%, the school's largest academic edge. The district also ranks 36th of 458 Minnesota districts (92nd percentile, 5 stars). Test scores, however, swing sharply year to year. Math dropped from 56.8% in 2024-2025 (11.6 points above the state) to 34.8% in 2025-2026 (10.1 points below it), while reading moved the opposite way, rising to 48.8%. These are different grade-level cohorts taking different tests, not the same students improving or declining.
Parents should read the "all grades" numbers with care. The district's all-grades math figure of 64.1% is lifted by younger grades; 11th-grade math at the high school was 34.8%, essentially level with the state's 35.3%. Compared with the same tested grade, the school is at or above the state in all three subjects — 11th-grade math at parity, 10th-grade reading 6.3 points above, and science 8.4 points above. With roughly 100 students per grade, one student is worth about a percentage point, so single-year swings deserve caution.
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