Summary:
ZIP code 55718 is served by a single high school in this data set: Carlton Secondary, a grades 6–12 school with 145 students at 405 School Ave in Carlton, Minnesota, part of the Carlton Public School District. Because it is the only school listed here, there are no local peer schools to compare against; the most useful comparisons are the school against its own prior years, against its district, and against Minnesota state averages.
The clearest story is rapid improvement. Carlton Secondary ranked 282 of 480 schools (41st percentile, 2 stars) in 2023–24, then 213 of 450 (53rd percentile, 3 stars) in 2024–25, and 68 of 473 (86th percentile, 4 stars) in 2025–26 — a jump from 2 stars to 4 stars in two years. That is well ahead of its own district, which sits at 280 of 458 (39th percentile, 2 stars). Outcomes at the end of high school are also a strength: the 2024–25 graduation rate is 92.0% versus 84.9% statewide, and the dropout rate is 4.0% versus 4.2% statewide. Science stands out, with All Grades science at 35.9% proficient compared with 25.5% statewide, and End-of-Course science at 54.2% versus 35.0% statewide. Eleventh grade math (38.1% vs 35.3%) and 10th grade reading (50.0% vs 42.5%) are also above state.
The main challenge is the middle grades. Seventh and 8th grade math sit at 20.0% and 18.8%, 7th and 8th grade reading at 20.0% and 18.8%, and 8th grade science at 6.7% — all well below state averages. These weaker middle-grade results are holding down the all-grades figures, where math is 27.7% (up from 15.38% the prior year), reading is 34.0% (essentially flat), and science is 35.9% (up from 15.15%). With about 21 students per grade, percentages can shift sharply on just a few students, so small-group results should be read with caution. Free/reduced lunch is 42.07%, useful context for interpreting performance.
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