Summary:
ZIP code 55008 (Cambridge, MN) is served by six schools — three elementary, one middle, and two high schools — all part of the single Cambridge-Isanti Public School District, with a combined enrollment of 3,329 students in grades PK through 12. Enrollment is heavily concentrated: Cambridge-Isanti High School alone holds 1,582 students (47.5% of the ZIP), while the two OLL (Opportunities for Lifelong Learning) programs together serve 106.
Cambridge Middle School is the clear standout — the only school here in the top quartile statewide, ranking at the 82nd percentile in 2025–26 after two straight years at the 85th, with math at 49.3 and reading at 53.6 versus state figures of 44.9 and 48.6. Cambridge Intermediate School posts the ZIP's highest math score (55.4, 10.5 points above state), driven by 5th-grade math at 55.4 versus 41.9 statewide. At the other end, Cambridge-Isanti High School is the only large school lagging the state in both math (24.0 vs. 44.9) and reading (33.1 vs. 48.6).
Two patterns matter most for families. First, proficiency and completion tell opposite stories: the high school posts the ZIP's weakest math and reading but graduates 85.1% of students, slightly above the state's 84.9% and well above the district's 81.0%. Second, science comparisons must be grade-matched — the state "All Grades" figure blends 5th-grade, 8th-grade, and End-of-Course tests, so the high school's apparent science edge disappears when matched properly. Note that Cambridge Primary School (PK–2) is untested because state testing begins in 3rd grade, and scores for Cambridge-Isanti OLL Elementary K-5 and Cambridge-Isanti OLL Secondary 6-12 are heavily suppressed or highly volatile given their small size.
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