Summary:
Chaska, Minnesota has 14 schools serving about 5,625 students from kindergarten through grade 12 across three districts. Most students — roughly 94.9% — attend the 12 schools of Eastern Carver County Public School, which ranks #30 of 458 Minnesota districts (93rd percentile, 5 stars). The rest attend World Learner Charter School, its own charter district ranked #157 of 458 (66th percentile, 3 stars), or a single school in Southwest Metro Intermediate 288.
The strongest schools cluster in the middle grades. Chaska Middle School West ranks #23 of 546 middle schools (96th percentile, 5 stars) and is improving (93 → 95 → 96), with math 64.7 and reading 66.9. Pioneer Ridge Middle School (92nd percentile) and Chaska Middle School East (91st percentile) sit close behind. Among elementaries, Jonathan Elementary ranks #100 of 869 (88th percentile) and posts the city's highest reading rate at 70.1, while Clover Ridge Elementary leads elementary science at 40.0. La Academia shows the sharpest improvement in the city, rising 59 → 63 → 78 percentile and gaining in all three subjects.
A few numbers need context. Chaska High School posts the city's best completion outcomes — 95.7% graduation and 1.7% dropout — and science at 41.1, but its rank has slipped (86 → 85 → 80) and its reading rate of 46.0 is below the state's 48.6. That reading fell sharply in a year that coincides with a test-label change, so it is worth verifying before treating it as a real decline. Middle-school science rates of 17.0–25.2 look low only against the all-grades state figure of 25.5; 8th grade is the only year tested and its state rate is just 16.7, which makes CMS West's 25.2 genuinely strong. Four schools report no test data at all, and several individual figures are suppressed.
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