Summary:
ZIP code 47240, in and around Greensburg, Indiana, is home to three public high schools serving about 1,447 students in total — Greensburg Community High School (grades 9–12, 646 students), North Decatur Junior-Senior High School (grades 7–12, 441 students) and South Decatur Junior-Senior High School (grades 7–12, 360 students) — split between the Greensburg Community Schools and Decatur County Community Schools districts.
Greensburg is the strongest and most consistent performer: it earned 4 stars in each of the last three years (76th percentile in 2025–2026), posted a 100.0% graduation rate against the state's 89.7%, and had the lowest chronic absenteeism at 8.9%. Its main gap is SAT Math, at 23.6% and below the state's 25.6%. North Decatur is the biggest improver, climbing from a 2-star, 40th-percentile school in 2023–2024 to 3 stars and the 68th percentile in 2025–2026, with a 96.8% graduation rate and SAT Math of 25.68%, just above the state; its chronic absenteeism of 16.1% is well above the district's 9.8%, though still below the state's 16.7%. South Decatur, the smallest school, has the lowest student-teacher ratio (9.1) but the weakest outcomes: an 83.0% graduation rate, SAT Math of 20.97%, 8th grade math at 10.0%, and the highest free/reduced lunch share at 52.5%.
Per-student spending is nearly identical across the three schools, ranging only from $12,792 to $13,089, so funding differences do not explain the performance gaps. Chronic absenteeism sits below the state average at all three. Although North and South Decatur share the same district rank, their individual results diverge sharply, so parents comparing them should weigh graduation rates, math proficiency and attendance rather than class size alone.
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