Summary:
ZIP code 56256 has exactly one elementary school: Madison-Marietta-Nassau Elementary in Madison, MN, serving grades PK–4 with 151 students as part of Lac qui Parle Valley Schools. The school has improved in state rankings, moving from 536th of 881 (39th percentile, 2 stars) in 2023–2024 to 443rd of 872 (49th percentile) in 2024–2025 and 381st of 869 (56th percentile, 3 stars) in 2025–2026. That is a 155-place improvement and a move to 3 stars, while the district is listed at 2 stars and ranked 295th of 458 districts (36th percentile). For parents, this is a small school on a clear upward trend.
Academically, math is the standout. In 2025–2026, all-grade math proficiency was 56.9% at the school, compared with 33.5% in the district and 44.9% statewide. Third-grade math was 73.3%, well above district and state. Reading also rebounded: all-grade reading rose from 39.58% in 2024–2025 to 50.0% in 2025–2026, moving from below to slightly above the state average. Third-grade reading was 63.3%. The school outperformed its district in every reported 2025–2026 test row and in both reported 2024–2025 subjects. The clearest academic soft spot is 4th grade: math was 39.3% and reading 35.7%, both above district but below state.
Context matters. Enrollment is 151 across PK–4, the free/reduced-price lunch rate is 35.76%, and the student-teacher ratio is 11.6. Small class sizes mean grade-level percentages can swing from year to year, so the 3rd-grade vs. 4th-grade gap—34.0 points in math and 27.6 points in reading—may reflect cohort differences rather than a lasting pattern. The school’s percentile is higher than its district’s listed percentile, though the ranking pools are not identical. Overall, Madison-Marietta-Nassau Elementary is a small, improving school with strong math, rebounding reading, and 4th-grade outcomes as the main area to watch.
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