Summary:
ZIP code 46321 in Munster, Indiana is served by just one high school — Munster High School, a grades 9–12 campus of 1,474 students in the School Town of Munster district — so families here are choosing a single school rather than comparing options within the ZIP. That school is a strong one: Munster High School holds a 5-star rating in each of the three reported years and ranked 17th of 415 Indiana high schools in 2025–2026 (96th percentile), 10th of 429 in 2024–2025 (98th percentile), and 20th of 432 in 2023–2024 (95th percentile) — consistently in the top 2%–5% statewide. The School Town of Munster district is itself ranked 9th of 374 districts, at the 98th percentile with 5 stars.
Graduation and attendance are clear strengths. The 2024–2025 graduation rate was 98.0%, versus 89.7% statewide, and chronic absenteeism was 8.8% — roughly half the state's 16.7% and only slightly above the district's 7.9%. In tested subjects, SAT Evidence-based Reading and Writing proficiency was 77.06% in 2025–2026 and 83.07% in 2024–2025, compared with 51.9% and 54.5% statewide — a 25–29 point advantage. SAT Mathematics proficiency was 48.32% and 46.61%, about 21–23 points above the state but still under 50%. Reading slipped 6.01 points year over year while math gained 1.71 points, narrowing the reading–math gap from 36.46 to 28.74 points. ILEARN Biology proficiency was 63.56% in 2024–2025 (state: 45.6%) and 65.7% in 2025–2026, though below the district's 68.27% and 72.31%.
Context: 24.97% of students were eligible for free/reduced lunch, per-student spending was $11,384 (2023–2024), and the student-teacher ratio was 16.6. The bottom line: this is an elite, consistently 5-star school with outstanding graduation and attendance, reading as its standout subject, math above the state but below its own reading results, and biology a possible focus area given it trails district performance. No test scores in this record were suppressed.
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