Summary:
ZIP code 55115 (Mahtomedi, Minnesota) contains exactly one middle school: Mahtomedi Middle, serving grades 6–8 with 761 students — roughly 250 per grade — as part of Mahtomedi Public School District, which ranks 12th of 458 Minnesota districts. With only one school in the area, there is no cross-school comparison to make, so the numbers below describe that single school's performance, trends, and student context.
The headline is consistency at the top: Mahtomedi Middle has ranked in the top 3% of Minnesota middle schools three years running — 16th of 545, 18th of 519, and 17th of 546 — earning 5 stars and a 97th-percentile rating each year. In 2025–26, proficiency ran well above the state in every subject: math 64.3% versus 44.9% (+19.4 points), reading 67.3% versus 48.6% (+18.7), and science 33.9% versus 25.5% (+8.4). Eighth-grade science is the standout relative result, more than double the state's 16.7%. Math is strikingly even across grades (64.6% in 6th, 62.3% in 7th, 65.9% in 8th), while reading varies sharply — 75.3% in 6th grade, 60.5% in 7th, and 66.0% in 8th, a 14.8-point spread that points to cohort-specific factors.
Two things to watch. First, math and science slipped year over year — down 4.6 and 4.2 points — while reading edged up 0.6 points; the state was essentially flat in math, so the narrower math margin is a school-side change. Reading's exam label also changed (MCA-III to MCA-IV), so that year-over-year reading comparison deserves mild caution. Second, 15.11% of students were eligible for free/reduced lunch in 2024–25, and the student–teacher ratio of 17.9 is on the higher side for a middle school. The school leads the district in reading (67.3% vs 66.5%) but trails its district "all grades" figures in math and science, which may reflect populations beyond this building.
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