Summary:
ZIP code 55722 in Coleraine, Minnesota is served by a single public high school — Greenway Senior High, which covers grades 9–12, enrolls 271 students, and belongs to the Greenway Public School District. Because it is the only high school in the area, there are no local peers to compare it against, so the most useful benchmarks are the district and the state of Minnesota.
The school's strongest results are in completion rather than test scores. Its graduation rate is 96.4% against a state rate of 84.9%, and its dropout rate is 1.7% against 4.2% statewide — less than half the state level. Science is the one academic bright spot: 25% of students are proficient, above the district's 20% and essentially level with the state's 25.5%. Roughly 45.76% of students qualify for free or reduced lunch and the student-to-teacher ratio is 13.2 to 1, so those completion outcomes are being achieved with a substantially economically disadvantaged student body.
Academic proficiency is the clear concern. In 2025–2026, math proficiency was 17.1% — 24.5 points below the district (41.6%) and 27.8 points below the state (44.9%) — while reading stood at 38.8% versus 48.6% statewide. All three subjects fell sharply from the prior year (math down 12.7 points, reading down 13.1, science down 7.1) even though state results barely moved, and reading slipped from above state level the year before to below it. The school's state rank reflects that swing: 206 of 450 (54th percentile, 3 stars) in 2024–2025, then 291 of 473 (38th percentile, 2 stars) in 2025–2026. The district itself ranks 306 of 458, indicating the high school is not the weakest part of its district's story. Parents should read the school as one that gets students to a diploma reliably but trails state proficiency benchmarks, most acutely in math.
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