Summary:
ZIP code 55388 is home to exactly one middle school, Watertown-Mayer Middle, serving grades 5–8 with 418 students in Watertown, Minnesota. Because it is the only middle school in the area, there are no local peers to compare it against; the most useful benchmarks are its district, Watertown-Mayer Public School District, and the state of Minnesota. The district itself ranks 44th of 458 statewide, placing it in the 90th percentile with 5 stars, so this school sits inside a high-performing district context.
Watertown-Mayer Middle is a strong performer in math and reading. In 2025-2026, 58.0% of students were proficient in math versus 44.9% statewide, and 64.3% were proficient in reading versus 48.6% statewide. Grade-level results are consistently above state averages, including 5th-grade math at 69.5% versus 41.9% and 6th-grade reading at 69.5% versus 53.4%. Its state rank was 69th of 546 middle schools — the 87th percentile with 4 stars — down from 32nd of 519, the 94th percentile with 5 stars, the prior year.
The clearest area for growth is science, particularly in 8th grade, where 11.5% of students were proficient against a state average of 16.7% — 5.2 points below the state — while 5th-grade science is a strength at 42.6% versus 25.9%. Overall science proficiency is essentially level with the state at 25.6% but trails the district by 4.4 points. Math also slipped from 65.17% to 58.0% year over year, though it remains well above the state. About one in four students (25.6%) qualifies for free or reduced lunch, and the student-to-teacher ratio is 15.5.
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