Summary:
ZIP code 55008 (Cambridge, Minnesota) is served by a single middle school — Cambridge Middle School — which enrolls 607 students in grades 6 through 8 and operates within the Cambridge-Isanti Public School District.
The most important thing for parents to know is that this school outperforms its own district. The district sits at the 50th percentile of Minnesota districts with 3 stars, while Cambridge Middle School ranks at the 82nd percentile of 546 Minnesota middle schools with 4 stars — and it has held 4 stars for three straight years (82nd percentile in 2025-2026, 85th in each of the two prior years). In 2025-2026, proficiency was 49.3% in Math (state: 44.9%), 53.6% in Reading (state: 48.6%), and 20.4% in Science. That Science figure needs context: Minnesota tests Science only in grades 5 and 8, so the school's all-grade number is really just its 8th grade result — and against the valid 8th grade comparison, the school's 20.4% beats both the district's 16.1% and the state's 16.7%. Science is a strength, not a weakness.
Achievement rises as students move up, running against the usual middle-school slide: Math climbs from 42.1% in 6th grade to 50.0% in 7th and 56.4% in 8th, and Reading peaks at 59.0% in 8th. Those 8th grade results lead the state by +14.1 and +9.0 points respectively. The clearest signal of instructional strength is Reading, which beats the district by 11.5 points. Two things to watch: Math fell 6.5 points and Science 8.7 points year over year — steeper than district or state declines — and 6th grade margins over the state are thin (Reading 53.6% vs. 53.4%, Math +2.6). With a 32.45% free/reduced-lunch rate and a 17.1 student-teacher ratio, these are solid results on a moderate-resource profile.
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