Summary
Merrillville High School is a large public high school in Merrillville, Indiana, serving grades 9–12 with 2,115 students in the Merrillville Community School Corp. In 2025–2026, it ranked 324th of 415 Indiana high schools (22nd percentile, 1 star), while its district ranked 256th of 374 (32nd percentile, 2 stars). The school has earned 1 star in every listed year since 2015–2016, with percentile ranks ranging from 12 to 28, so its recent results remain in the lower tier.
Academically, proficiency is the main concern. In 2025–2026, SAT ERW proficiency was 32.3% versus 51.9% statewide, and SAT Math was 11.11% versus 25.6% statewide. Biology ILEARN was 28.87% in 2024–2025 versus 45.6% statewide. By contrast, the graduation rate is a relative strength: 91.2% in 2024–2025, above the state’s 89.7% and above state for five reported years. Chronic absenteeism is 25.7% in 2024–2025, above the district’s 19.6% and the state’s 16.7%. Nearby Crown Point High School, Hobart High School, and Highland High School have lower absenteeism and much higher test proficiency, while River Forest High School, Calumet New Technical High School, Thomas A Edison Junior-Senior High School, Gary Middle College, and Excel Center - Gary generally rank lower or face larger attendance challenges.
Resources and class size do not appear to explain the gap. The school spent $12,245 per student in 2023–2024 and had a 15.2 student-teacher ratio in 2024–2025—better staffing than Crown Point High School ($11,646; 20.1), Hobart High School ($12,431; 20.1), and Highland High School ($11,753; 18.3), though those schools outperform it academically. Subgroup effectiveness varies: English learners ranked at the 73rd percentile in 2025–2026, and special education students improved to the 31st percentile, while low-income, female, and male students ranked near or below the school’s overall 22nd percentile. Overall, the school is stronger than the lowest local tier but far behind the leading nearby comprehensive high schools; its biggest challenges are low math and reading proficiency and high chronic absenteeism.
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