Summary:
Zip code 57461 has one elementary school, Northwestern Elementary - 04 in Mellette, serving prekindergarten through grade 5 with 135 students. In 2025–26, its all-grades proficiency was 59% in English language arts (ELA) and 63% in math, compared with 49% and 44% statewide. The most important finding for families is that the school was well ahead of the state in both subjects, especially math, where its advantage was 20 percentage points.
With only one school in the area, there is no local top or bottom school to compare; the clearest standout is the school’s strong all-grades performance against state results. That strength is not consistent across every grade and subject: fourth-grade ELA was 46%, 2 points below the state’s 48%, and fifth-grade science was slightly below the state in 2025–26 (41% versus 41%, by less than 1 point). By contrast, all three reported grades were above the state in math, with advantages of 20 points in grade 3, 5 points in grade 4, and 17 points in grade 5. Fifth-grade science improved from 38% to 41% between 2024–25 and 2025–26, but remained below the state in both years.
The school’s lead over the state grew from 2024–25 to 2025–26, particularly in math: school proficiency rose 5 points in ELA and 16 points in math, while the state’s ELA result fell 2 points and its math result changed by less than 1 point. SchoolDigger ranked the school 57th of 203 schools, at the 72nd percentile with 4 stars, in 2025–26; its earlier rankings were 133rd of 300 with 3 stars in 2024–25 and 55th of 201 with 4 stars in 2023–24. Other context includes a 14:1 student-teacher ratio in 2024–25 and 19% free/reduced lunch eligible that year; chronic absenteeism in 2025–26 was 5%, below the Northwestern Area School District 56-7 at 8% and the state at 20%. Because the area has only one listed school, these figures cannot show how it compares with nearby schools or schools with similar characteristics.
Thank you for your feedback!