Summary
Decatur Middle School is a grades 7–8 school in Indianapolis serving about 1,000 students as part of MSD Decatur Township, a district ranked 269th of 374 in Indiana (28th percentile, 1 star) while the school ranked 371st of 486 in 2025–26 (24th percentile, 1 star). That puts Decatur in the bottom quartile, a spot it has held for years: 20th percentile in 2024–25 and 2023–24, 24th in 2022–23, and 9th percentile with 0 stars in 2018–19. The 2025–26 result is a slight uptick, but the school remains a 1-star, bottom-quartile performer.
Academics are uneven. In 2025–26, 25.13% of students were proficient in English Language Arts and 16.41% in math, below the district's 26.91% and 26.47%. Eighth grade is weaker than seventh: 22.2% in ELA and just 13.39% in math, against state rates of 44% and 34.2%. Math is the clearest weakness, with all-grades proficiency staying between roughly 12% and 16% across four years. One bright spot stands out: Biology End-of-Course proficiency hit 91.43% in 2025–26 and 95.65% in 2023–24, far above district and state averages. That likely reflects a small, select group taking biology early, so treat it as a targeted strength rather than proof of broad science performance.
Chronic absenteeism was 24.3% in 2024–25 — above Indiana's 16.7% and higher than every nearby school listed, including Lynhurst 7th & 8th Grade Center (22.5%), Southport Middle School (20.7%), Chapel Hill 7th & 8th Grade Center (20.3%), Perry Meridian Middle School (17.6%), Paul Hadley Middle School (11.7%) and Speedway Junior High School (5.1%). Poverty does not fully explain the results: Decatur's free/reduced lunch rate (59.7%) is lower than Southport Middle's (75.15%), Perry Meridian Middle's (65.34%), Lynhurst's (77.62%) and Speedway's (64.02%), yet those schools mostly outperform it in ELA and math. Decatur also spends $11,760 per student — more than Plainfield Community Middle School ($9,740) and Center Grove Middle School North ($9,314) — with a lower student-teacher ratio (15.6) than several peers, suggesting spending and class size alone do not explain the gap.
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