Summary:
ZIP code 47620 covers Mount Vernon, Indiana, and contains just one high school: Mount Vernon High School, a 583-student school serving grades 9–12 in the MSD Mount Vernon district.
Because this is the only high school in the area, families have a single but fairly detailed picture to work from. The clearest strength is graduation: 95.3% of students graduated in 2024–25, well above Indiana's 89.7%. SAT Evidence-based Reading and Writing also stands out, rising from 48.82% proficient in 2024–25 to 54.55% in 2025–26 — moving from below the state (54.5%) to above it (51.9%). The broader MSD Mount Vernon district is rated strongly at 67 of 374 districts, the 82nd percentile, with 4 stars. Resource context looks favorable too, with per-student spending of $15,779 (2023–24) and a 10.7-to-1 student-teacher ratio (2024–25).
The main concern is chronic absenteeism at 21.1% in 2024–25 — notably higher than both the district's 14.2% and the state's 16.7%. Math is the weaker academic area: SAT Mathematics was 23.64% proficient in 2025–26, below the state's 25.6%, after sitting roughly even with the state the year before. Biology ILEARN proficiency also slipped, from 46.54% in 2024–25 to 41.67% in 2025–26. In overall rank, the school sits at 155 of 415, the 63rd percentile with 3 stars — above the state median, but below its own 2023–24 peak of 72nd percentile and 4 stars.
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