Summary:
ZIP code 56209 contains just one elementary school: A.C.G.C. Elementary, a PK–4 school with 369 students in Atwater, Minnesota, part of the A.C.G.C. Public School District. With only one elementary school in the area, there is no local comparison to draw, so the most useful context is how the school measures against its district and the state. The district ranks 145th of 458 Minnesota districts — the 68th percentile, 3 stars. The school serves a majority economically disadvantaged population, with 53.66% of students receiving free or reduced-price lunch, and its student-to-teacher ratio is a relatively low 11.5.
Math is the school's clearest strength. Across all grades, 59.8% of students met proficiency in math, compared with 41.5% in the district and 44.9% statewide — 18.3 points above the district and 14.9 points above the state. Third-grade math (58.5%) and fourth-grade math (61.3%) also beat state averages of 57.9% and 55.2%. That performance comes as district math fell from 50.34% to 41.5% year over year, meaning the school moved in the opposite direction of its district. The school's overall standing improved as well, rising from 519th of 872 schools (40th percentile, 2 stars) in 2024–25 to 364th of 869 (58th percentile, 3 stars) in 2025–26.
Reading tells a more complicated story. All-grade reading proficiency climbed from 36.59% to 47.2%, an increase of 10.61 points that lifted the school from 5.06 points below its district to 4.4 points above it, and from 13 points below the state to just 1.4 points below. However, that average hides a sharp split: fourth-grade reading sits at 58.1%, which is 9.3 points above the state, while third-grade reading is 36.9%, or 9.9 points below it — a 21.2-point gap between the two grades. For parents, the takeaway is a school with strong math results, a dramatic reading improvement, and one clear watch item: third-grade reading, the weakest result in the data.
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