Summary:
Warren, Minnesota has two schools serving students from prekindergarten through 12th grade: Warren Elementary (PK–5, 316 students) and Warren-Alvarado-Oslo Secondary (grades 6–12, 273 students). Together they enroll 589 students in the Warren-Alvarado-Oslo School District, which ranks 205 of 458 Minnesota districts — the 55th percentile, with 3 stars. The secondary school serves middle-grade students as well, even though the area has no separate middle school.
For families comparing the two, Warren Elementary is the stronger academic performer. In 2025–2026 its all-grade proficiency was 55.2% in math and 53.1% in reading, above both the district (43.9% and 49.2%) and the state (44.9% and 48.6%), and it was above state at every tested grade in those subjects. It earned 3 stars, ranking 355 of 869 schools (59th percentile), up from 2 stars in 2023–2024. Its weak spot is science: 17.8% versus the state's 25.5%, with the 5th-grade science score at 17.8% versus the state's 25.9%. Warren-Alvarado-Oslo Secondary is below state in all three subjects in 2025–2026 — math 32.6%, reading 45.5%, science 20.0% — but its graduation rate was 90.0% and its dropout rate 0.0%, both better than the state's 84.9% and 4.2%. It improved from 1 star to 2 stars and now ranks 283 of 473 (40th percentile).
Two things stand out across both schools. First, science is the shared weakness: elementary 17.8% and secondary 20.0%, both under the state's 25.5%, with the elementary score falling sharply from 40.38% the prior year. Second, the schools differ in context: the elementary school has a higher free/reduced lunch rate (43.67% versus 36.26%) yet higher math and reading proficiency, while the secondary school has a much higher student-teacher ratio (22.0 versus 13.2). The secondary school is trending upward in every subject, gaining 5.7 points in math, 2.24 in reading, and 5.29 in science year over year, though gaps to the state remain.
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