Summary:
Zip code 57028 has one middle school, Flandreau Middle School - 03, serving grades 5–8 and enrolling 193 students. In 2025–2026, its proficiency was below the state in all three reported subjects: 44% in ELA versus 49% statewide, 31% in math versus 44%, and 40% in science versus 42%. The most important concern is math, particularly in the upper grades: grade 7 was 17 points below the state and grade 8 was 17 points below.
There are no meaningful top- and bottom-ranked schools in this area because Flandreau is the only school in the list. Within its results, science is closest to the state overall, while math is furthest behind: the school’s science gap was 2 points, compared with a 13-point math gap. Grade 8 shows some subject-specific strengths: science proficiency was 43%, 2 points above the state, and ELA was 51.4% versus 51.5%, just 0.1 point below. Those results contrast with grade 8 math, which remained 17 points below the state.
Results improved from 2024–2025 to 2025–2026 in every subject, with proficiency up 5 points in ELA, 7 in math, and 12 in science; the gap with the state narrowed by 7, 6, and 14 points, respectively. Even with that progress, the school still trails the state overall in all three subjects. SchoolDigger ranks it 112th of 151 South Dakota schools, in the 26th percentile, with one star. Other context includes a 10.1 student-teacher ratio in 2024–2025 and 52% free/reduced lunch eligible in 2024–2025. Chronic absenteeism in 2025–2026 was 18%, below the state’s 20% but above the Flandreau School District 50-3 rate of 15%.
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